Opto 22

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Email: sales@opto22.com

OptoKnowledgeBase

Most automation companies like to hide their problems. We don't. We think you should know about any product issues and how to work around them, and find out as soon as they're fixed.

That's why we provide this OptoKnowledgeBase to our customers. Opto 22 Product Support and Engineering use it to track issues and get them resolved quickly; you can use it to troubleshoot any issues you have, even before you call us.

And remember, Opto 22 Product Support from knowledgeable engineers in our California headquarters is always FREE.
Free support, open standards, and straight talk. That's how we do business.

You can search the Opto 22 KnowledgeBase by article number, by keywords in the article’s title or text, or by product.
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Article #TitleRevisionReviewed
KB82872groov App is no longer accessible after a self-signed certificate is created1.05/2/2013
KB82856Range indicator gadget displays units even when value is not shown2.04/30/2013
KB82937groov does not display "welcome to groov" window and does not restore to defaults2.04/29/2013
KB82938Clicking on Page Navigator link to hidden page changes displayed window1.04/24/2013
KB82014Serial I/O units on same controller port may time out4.04/1/2013
KB82126Cannot FTP file from host to client PC with SNAP PAC Sim2.04/1/2013
KB82417Mistic PID loop may not be properly initialized2.04/1/2013
KB82420Unexpected count value read from SNAP-SCM-SSI2.04/1/2013
KB82439Controller does not enable G4D32RS I/O units2.04/1/2013
KB82463'Move Numeric Table to I/O Unit' may not set all output points correctly2.04/1/2013
KB82464Cannot enable I/O Unit and error -93 appears in queue2.04/1/2013
KB82469Persistent string table data lost with strategy download2.04/1/2013
KB82480HTTP Get command returns -20 error on second and subsequent calls2.04/1/2013
KB82492'Write Numeric Table to I/O Unit Memory Map' command returns -3 error2.04/1/2013
KB82533HttpGet command returns error -4432.04/1/2013
KB82631Repeated 'Start Continuous Square Wave' commands immediately restart the square wave2.04/1/2013
KB82633SoftPAC may crash if a large string table is viewed in Debug mode2.04/1/2013
KB82643Background downloading may cause unexpected behavior from controller2.04/1/2013
KB82662PID loop 'Enable Communication' option does not work correctly2.04/1/2013
KB82682Pulse commands may stop working2.04/1/2013
KB82765'Move Table to I/O Unit' Turns off G4EB2 Input IVALs2.04/1/2013
KB82145'Open Outgoing Communication' command ignores some user-specified timeout values2.04/1/2013
KB82046Using a literal string for URL with HTTP POST or HTTP GET commands may cause reset2.03/27/2013
KB81997Controller sync of Time/Date may cause reset5.03/26/2013
KB82768Reading from a file on the control engine opened for writing may fail1.03/25/2013
KB82221SNAP Module Resets Causes Re-Config Storm1.03/22/2013
KB81517Chart count out of sync with actual number of running tasks on a controller3.03/22/2013
KB81790SNAP PAC Simulator should return -36 for Send Email commands2.03/22/2013
KB81888Ethernet sessions unexpectedly closed2.03/22/2013
KB81903Multiple clients opening and closing sessions may cause delayed response to new sessions2.03/22/2013
KB81908'Send Email With Attachments' command result code may be incorrect2.03/22/2013
KB81916Multiple tasks opening and closing serial COM handle may cause reset or chart lockup3.03/22/2013
KB81979Problems with NTP Time & Date commands2.03/22/2013
KB82635One time trigger in OptoDataLink continues to record data1.02/6/2013
KB82277Opto Browser Configurator may crash when importing large files1.02/5/2013
KB82661Incorrect error message when attempting to upload firmware to an unresponsive IP address1.02/4/2013
KB82676Modbus Calculator Error in PAC Manager1.02/4/2013
KB82160Error returned by Modbus/TCP 'Force Multiple Coils'2.01/24/2013
KB82058PID's P term and D term may not be calculated correctly1.01/21/2013
KB82257Down Timers May Fail To Expire2.01/16/2013
KB81902PIDs not enabled on redundant systems2.01/16/2013
KB82001'Move Numeric Table to I/O Unit' may cause controller reset2.01/16/2013
KB82006FTP communication handles do not support DNS2.01/16/2013
KB82016SNAP-AITM-4i displays intermittent or continual QNAN data3.01/16/2013
KB82023'HTTP Get' command incorrectly returns HTTP error 4002.01/16/2013
KB82086The 'Get Time & Date' command always returns 0 ms2.01/16/2013
KB82106SNAP PAC Sim may return error -592.01/16/2013
KB82134'Synchronize Clock SNTP' does not work on SNAP PAC Sim2.01/16/2013
KB82146'Receive N Characters' returns -39 if number of characters is negative2.01/16/2013
KB82147'Enable/Disable I/O Unit Causing Current Error' may cause bus error2.01/16/2013
KB82157'Move Numeric Table To I/O Unit' only writes to position 0, high-density digital module2.01/16/2013
KB82167Some analog/digital commands ignore disabled point state2.01/16/2013
KB82176Passing string table element to subroutine with string tables may cause unexpected results2.01/16/2013
KB82177Setting controller FTP Username and Password may cause remote FTP connection to fail2.01/16/2013
KB82178Serial B3000 Event/Reaction scanning enabled only on first strategy run2.01/16/2013
KB82226Wrong status code from 'Synchronize Clock SNTP' command2.01/16/2013
KB82227Multiple 'Synchronize Clock SNTP' commands may fail2.01/16/2013
KB82244SNAP PAC Sim may transmit or display unexpected 32 or 64-bit values2.01/16/2013
KB82601Strategy in microSD card does not run if named the same as controller strategy1.012/27/2012
KB82615Window open/close attributes do not work if a Send Value attribute times out1.012/21/2012
KB82611Re-enabled hidden pens are not listed in the Active Pen drop-down list1.012/21/2012
KB82603ComboBox configuration does not trigger a window to open1.012/21/2012
KB82600Rotating a graphic may incorrectly display a scaling message1.012/21/2012
KB82564Windows with alarms may not be closed after PC wakes1.012/21/2012
KB82550Up and down arrow buttons cause OptoDataLink to crash1.012/20/2012
KB82109B3000-B responds incorrectly to incomplete messages1.012/20/2012
KB82108No response from B3000-B after receiving invalid command1.012/20/2012
KB81671I/O Unit Hardware Revision displayed for E1 and E2 is always 2005-05-051.012/20/2012
KB82333E1 and E2 does not acknowledge a Power-up Clear (PUC)1.012/19/2012
KB81320The Message Queue window has trouble on slow or poor networks1.012/19/2012
KB81946Many "Access denied" error messages from OptoVersion1.012/19/2012
KB53295New RTC in SNAP-LCM4 and SNAP-LCSX controllers affects firmware compatibility2.012/19/2012
KB82476The 'depending on' Database value not always detected1.012/18/2012
KB82421Incorrect wiring diagram on SNAP-PAC-SSI module case1.012/14/2012
KB57220Corrupted E1 and E2 Host and Domain Name fields, possible loss of communication2.012/3/2012
KB82158OptoOPCServer clients fail after adding new tags2.011/21/2012
KB82125Problem with 'Get and Clear' dynamic attribute for latches in PAC Display Runtime3.011/21/2012
KB82183SuperTrend data is not displayed when window is opened2.011/21/2012
KB82449Runtime Pop-up Tooltips disappear in Pac Display Runtime2.011/21/2012
KB82409Multiple 'Fixed data - Direct' dynamic attributes have no effect2.011/21/2012
KB82434Some windows may be off-screen after switching from multiple monitors to a single monitor2.011/21/2012
KB82418Text changes to Button graphic label are not saved2.011/21/2012
KB82442Clicking Forward buttons on Historical SuperTrend may cause floating point exception2.011/21/2012
KB82430Rotated Bitmaps displayed incorrectly in PAC Display Runtime2.011/21/2012
KB82389Imported Windows with grouped objects not assigned selected control engine2.011/21/2012
KB82377Incorrect SuperTrend Y-axis labeling2.011/21/2012
KB82419Opening PAC Display Basic project in Pro results in missing windows2.011/21/2012
KB82402Modbus Calculator Register address is incorrect2.011/21/2012
KB82499Runtime scans SuperTrend at startup even if scanning is disabled1.011/20/2012
KB82320Problems saving OptoDataLink files to network drive1.011/20/2012
KB82305The 'Tab' key moves through the OptoDataLink dialog backwards1.011/20/2012
KB82404Spaces in column and table names in OptoDataLink cause problems1.011/20/2012
KB82362Incorrect or missing messages if an OptoDataLink database connection fails1.011/20/2012
KB82274Blank Data Source Name (DSN) drop-down list1.011/20/2012
KB81913"Enable I/O Unit" overwrites replicated MMP PID tuning parameters on Redundant Systems1.011/14/2012
KB82517Incorrect controller firmware version shown in Debug mode1.011/14/2012
KB81793Session connection to controller may take several seconds1.011/5/2012
KB81962The PAC Control HTTP commands may return wrong error when connection fails1.011/1/2012
KB82012Redundant system cannot start up without arbiter1.011/1/2012
KB82124Cannot 'Listen for Incoming Communication' on same port for both UDP and TCP sessions1.011/1/2012
KB52396How to determine if the soldered battery in a controller needs replacement3.010/31/2012
KB82101Updating to firmware 9.2c or newer may fail on SNAP-PAC-R controllers5.010/25/2012
KB82326Cannot add G4EB2 I/O unit to a redundant controller strategy2.010/22/2012
KB82021String tables are incorrectly reported as invalid by Validate Recipe File3.010/16/2012
KB80923SNAP-AITM series field wiring terminal change2.010/9/2012
KB49433OptoServer running on Windows XP and Service Pack 23.09/14/2012
KB81985Spike in values read from G1 analog input modules with E2 brain1.09/12/2012
KB81984Spike in values read from G1 analog input modules with B2 brain1.09/11/2012
KB82356Cannot type in a full MAC Address in PAC Manager2.09/7/2012
KB82139All 'Event Log Options' cannot be disabled2.09/7/2012
KB82155False I/O Communication Failure1.07/12/2012
KB82141Cannot send values to a controller while downloading a recipe1.07/6/2012
KB82143AutoCorrect Tags does not work with table objects1.07/6/2012
KB82175Tag Selection dialog may show incorrect default Field values1.07/6/2012
KB80988Error message reported by PAC Manager when configuring digital outputs on E1 brains2.07/5/2012
KB81403'Move I/O Unit to Numeric Table' and 'Move I/O Unit to Numeric Table Ex' commands do not write to table if I/O unit is offline5.06/19/2012
KB81998Some OptoControl strategies cannot be imported into PAC Control3.06/14/2012
KB81942Command Help missing for new commands in PAC Control2.06/14/2012
KB81957Controller may need strategy download after power cycle or reset2.06/14/2012
KB81986Cannot use 'Get I/O Unit as Binary Value' command with G4D16R or G4D32RS3.06/14/2012
KB82059Slow I/O updates in PAC Display when scanning many I/O units2.06/14/2012
KB81949Hidden SuperTrend Pens are appearing in trend2.06/14/2012
KB81950SuperTrend Pen window to Enable/Disable/Hide pens may not function correctly for non-consecutive pens2.06/14/2012
KB81973PAC Display Runtime may not exit correctly from Execute Menu Item2.06/14/2012
KB81977PAC Display Runtime crashes using Send Discrete to Integer64 bit tag2.06/14/2012
KB82027PAC Display Configurator may hang and crash when using Edit Recipe tool2.06/14/2012
KB82024Triggered historic logs slow down PAC Display Runtime 2.06/14/2012
KB82019Uploading a recipe file may lock up PAC Display Runtime2.06/14/2012
KB81223Pen plots missing with 'Default' Y-axis Scale option in SuperTrends2.06/14/2012
KB81976Import/Copy I/O Unit window does not allow IP addresses with more than two digits2.06/7/2012
KB81850Device I.P. Address and Device Name columns missing from Configuration Status window1.05/9/2012
KB82009Discrete output does not turn off when mouse is released1.05/9/2012
KB82033Opto iPAC may incorrectly list digital inputs as analog inputs1.05/9/2012
KB82028Communication handle timeout problems1.05/7/2012
KB81963OptoEMU allows configuration of interfaces on the same network1.05/3/2012
KB81448 PAC Project applications set OptoEMU's time1.05/3/2012
KB81227PAC Display Runtime may crash when simultaneously sending multiple alarmpoint emails2.05/2/2012
KB80298OptoDataLink data update may fail with quick strategy tag updates3.04/25/2012
KB81941NTP Timestamping commands are missing from online help1.04/9/2012
KB81053Backup redundant controller may not be established3.03/27/2012
KB81387SendCommunicationHandle command 'get.src' always returns zero2.03/19/2012
KB81404SNAP-PAC-S1 resets if microSD card is in slot at power-up or restart2.03/19/2012
KB81410Serial port's baud rate not changed2.03/19/2012
KB81672Unknown controller status after downloading to redundant controller in PAC Control2.03/19/2012
KB81553'Receive Numeric Table' may cause a -95 info message3.03/19/2012
KB81242OptoEMU-SNR-3V may indicate false serial port test failure with 17 red blinks2.03/19/2012
KB80700PAC Simulator IVAL On/Off Latch Set commands don't work with High Density digital input modules2.03/19/2012
KB81302Problems with Ethernet communications after restoring controller Configuration Data from microSD card2.03/19/2012
KB81349Assigning Chr(x) to a table element does not work2.03/19/2012
KB81597Moving an Int64 into a timer in an Action block causes reset2.03/14/2012
KB81624Cannot compile and download strategy when using a Windows Roaming Profile2.03/14/2012
KB81839Some dialog boxes in PAC Control do not display all text in Chinese Windows2.03/14/2012
KB81840Chinese characters in OptoScript blocks cause problems2.03/14/2012
KB81847Entering Chinese characters in a PAC Control tag name causes problems2.03/14/2012
KB81592PAC Display project may crash when upgrading to newer version2.03/14/2012
KB81693New duplicated alarm point incorrectly has identical links and attributes as the original point2.03/14/2012
KB81727Cannot Cancel from importing a window into PAC Display3.03/14/2012
KB81729PAC Display Runtime cannot connect to remote OptoOPCServer under Windows 7 and Vista2.03/14/2012
KB81743'Display message box for new alarm points' option may cause problems in Runtime3.03/14/2012
KB81801ComboBox Output Dynamic Attributes sometimes do not write values to tags2.03/14/2012
KB81853Alarms in PAC Display do not trigger at the expected alarm limits2.03/14/2012
KB81877Trigger-based Historic Data Log records data based on Refresh Time2.03/14/2012
KB81878Trigger-based historic data logged twice when configured to log once2.03/14/2012
KB81883PAC Display Historic Logs do not log Integer64 values2.03/14/2012
KB81316'Out of service' errors reported in PAC Display2.03/14/2012
KB81856Unable to connect to remote OptoOPCServer2.03/14/2012
KB81848Some text truncated in PAC Manager when running under Chinese version of Windows2.03/14/2012
KB81917OptoDataLink sometimes crashes after exiting Runtime2.03/14/2012
KB81450Very small floating-point values are set to zero by controller 2.03/14/2012
KB81309Emails not sent from controller and -50 error returned2.03/14/2012
KB81645Redundant system I/O units don't re-enable if they are rebooted2.03/14/2012
KB81706Redundant systems sometimes transition to backup controller frequently2.03/14/2012
KB81787Expired Up Timer not detected2.03/14/2012
KB81791'Transmit Receive String' command may time out prematurely2.03/14/2012
KB81792'Get Numeric Table' and 'Get String Table' may cause -95 error2.03/14/2012
KB81800'Send Email' commands require password2.03/14/2012
KB81854Configured comments for alarms are sometimes not displayed correctly1.02/23/2012
KB81375Chart appears to hang if 'Open Outgoing Communication' is sent to a disconnected device2.01/17/2012
KB81397Communication problems to SNAP-PAC-SB brains when updating firmware4.01/12/2012
KB81674Problems with PAC Controllers communicating to Profibus-DP slaves11/10/2012
KB81420Get Chart Status returns error message -52.01/9/2012
KB81707Cannot connect with Listen and Accept Incoming Communication commands1.01/6/2012
KB81087OptoOPCServer Item ID tag names are not displayed for PID items1.01/5/2012
KB80103Control engine port 22001 may become unresponsive if bootup is interrupted4.01/3/2012
KB81443Modbus/TCP, IO4AB, and SNMP 4-channel data may be old3.012/22/2011
KB81084Subroutines from Case or IF statement may have unexpected results3.012/16/2011
KB81514Controller or serial brain becomes unresponsive after I/O communication on RS-485 serial link3.012/14/2011
KB81303Wireless brains and controllers may intermittently lose communication2.012/13/2011
KB81348SNAP PAC firmware versions merge in version R9.1b2.012/6/2011
KB81115SNAP PAC control engine serial ports are always set to Parity=None4.012/6/2011
KB81184Slower PAC Control strategy performance2.012/6/2011
KB81189NULL pointer passed to command causes controller problems2.012/6/2011
KB81190Possible bus error (-16) or controller problems on I/O initialization2.012/6/2011
KB81199Calling a subroutine may cause controller problems due to string tables2.012/6/2011
KB81232Dead or missing controller battery can cause controller problems2.012/6/2011
KB81269Multiple charts using 'Move Numeric Table to Numeric Table' may cause strategy deadlock3.012/6/2011
KB81446Writing numeric tables to a controller's microSD card is very slow1.012/2/2011
KB81390SNAP-PAC-SB Brains may drop packets at 230.4 kBd4.012/2/2011
KB81355Controller bus error or hardware reset when inspecting local subroutine variables2.012/2/2011
KB81398Controller sometimes reports error -11 when sending email3.012/2/2011
KB81405Control engine communication problem with background downloading and persistent string access2.012/2/2011
KB81439'Get Date & Time' incorrectly returns -3 error2.012/2/2011
KB81451An Up Timer is not working as expected2.012/2/2011
KB81510Blinking red STAT LED and error -63 when downloading .cdf file from microSD card2.012/2/2011
KB81668Some redundant controllers cannot be turned off separately1.011/30/2011
KB80425PAC Manager displays turn-around time delay for non-existent ports2.011/17/2011
KB81503PAC Control may not open PDF with default PDF viewer1.010/14/2011
KB81511Some error messages are missing from PAC Project Software R9.11.010/14/2011
KB81512OptoDisplay to PAC Display conversion utility not correctly updating alarm graphics1.010/14/2011
KB81347Incorrect scaled analog output XVAL when strategy is initially run1.010/5/2011
KB81430Imported I/O points missing or behave incorrectly in strategy2.09/28/2011
KB81431Renaming a tag or using Find and Replace within Tag Names causes OptoScript errors2.09/28/2011
KB81393Modified default SuperTrend pen plots are not drawn correctly2.09/28/2011
KB81438AutoCorrect Tags does not update tags in Combo Boxes1.09/22/2011
KB59233Updated bootloader available for SNAP-PAC-S12.09/20/2011
KB80934EtherNet/IP does not support the SNAP-SSI module1.09/19/2011
KB80773Digital Events-Expanded triggers continuously without trigger being set1.09/19/2011
KB81182Event Message Email Client does not include the date field in the header1.09/8/2011
KB81382PAC Display prints only once, cannot be restarted1.09/7/2011
KB81381Total energy values (kWh) for pulse inputs are 0.0 for Modbus and OptoMMP applications4.09/7/2011
KB81318OptoEMU Manager times out during update processs1.09/1/2011
KB81389PAC Display hangs when attempting to convert OptoDisplay project2.08/17/2011
KB81379Scratch Pad Float Table values not displayed in Table object2.08/17/2011
KB81365Fourth table in Table object appears cut off 2.08/17/2011
KB81363Cannot paste or duplicate objects in PAC Display Configurator2.08/17/2011
KB81351Controller resets when table references negative index1.08/10/2011
KB81335Imoporting animated GIF files may cause unexpected results1.08/8/2011
KB81364Resizing a rotated object may cause object to appear incorrectly1.08/8/2011
KB81002PAC Simulator appears to run strategy, but logic is not executing2.08/8/2011
KB81359High current and power readings by OptoEMU-SNR-3V using CTs1.08/3/2011
KB81326Editing Pointers allows Persistent initialization1.08/2/2011
KB81091Converted OptoControl strategies have incorrect initial values for numeric variables and tables2.08/2/2011
KB81229Data Link stored late to Destination by OptoDataLink2.08/2/2011
KB81159Cannot copy I/O units with PIDs in PAC Manager2.08/2/2011
KB81095PAC Display Runtime may hang if Alarm Point tags are disabled2.08/2/2011
KB81099Memory leak in PAC Display Runtime if logging String Tables in Historic Logs2.08/2/2011
KB81110PAC Display Configurator requests tag for Contoller Status Alarm Point2.08/2/2011
KB81183PAC Display Runtime may crash if 'Always in memory' option selected2.08/2/2011
KB81192Edit > Replace command does not make changes within a ComboBox in PAC Display2.08/2/2011
KB81193Problems resizing a polygon after rotating it 2.08/2/2011
KB81196Regenerate Scanner Tags command skips tags in ComboBox control2.08/2/2011
KB81216Problems in PAC Display is 'Exit Runtime' and another dynamic attribute is configured for same graphic2.08/2/2011
KB81263PAC Display - Setting the Execute Menu Item not working correctly2.08/2/2011
KB81264Bit indices past 31 in Int64 table element are not changed by Edit > Replace2.08/2/2011
KB81265ComboBox element change is not saved2.08/2/2011
KB81268PAC Manager allows more than 24 data bits for SNAP-SCM-SSI module2.08/2/2011
KB81271Discrete write to Analog/Digital I/O Unit in Runtime causes error messages2.08/2/2011
KB81278Cannot select SuperTrend log file format2.08/2/2011
KB81323Copying and pasting a bitmap results in a blank image or crash2.08/2/2011
KB81329Edit > Replace, Refresh Group does not work for SuperTrends2.08/2/2011
KB81330PAC Display Configurator: Importing AlarmPoints caused extra characters in Alarm Point List Box under Windows XP2.08/2/2011
KB81230Command 'Get Pointer From Name' does not work with tables2.08/2/2011
KB81234'Call Chart' command may cause chart to suspend2.08/2/2011
KB81251'Move Numeric Table to Numeric Table' command always writes to index 02.08/2/2011
KB81276I/O units with redundant Ethernet link are disabled if primary controller connection is interrupted2.08/2/2011
KB81279I/O unit disabled if SetAnalogTpoPeriod sent to disabled Snap-AOD-29 point2.08/2/2011
KB81188'Stack Not Empty' (-95) in error queue2.08/2/2011
KB81311'High Density Digital Input Module #' incorrectly displayed for Event in Configure Mode1.07/29/2011
KB81325Printing at Runtime produces twice as many Copies1.07/28/2011
KB81298Printing a window at Runtime includes Print dialog box 1.07/28/2011
KB81332Importing a Window with GIF graphics crashes Configurator1.07/28/2011
KB81331View > Dynamic Attributes displays the incorrect SuperTrend Refresh Group1.07/28/2011
KB81031B3000-B does not support request for TPO information2.07/26/2011
KB81354Connector color changes on various products1.07/20/2011
KB81218PID State for Auto and Manual Modes are incorrect via the controller1.07/18/2011
KB81343Historic Logs may miss data if another trigger event occurs too quickly1.07/11/2011
KB81350InfoKB: Torque specification changed for SNAP-AITM series module connectors1.07/11/2011
KB81346PAC Display does not switch back to Primary Controller from Backup Controller 1.07/8/2011
KB80465Random crashes possible in OptoDisplay Runtime2.06/29/2011
KB81088Incorrect microSD card function message in PAC Manager1.06/21/2011
KB52626G4A8R, G4RAX, and B200 analog points are always scaled for degrees Celsius in PAC Control/ioControl2.06/2/2011
KB81221Deviation Alarm does not set Reaction's scratch pad bits1.05/17/2011
KB81213Invalid analog input readings for ~3 sec after power-up1.05/16/2011
KB81195Event Messages greater than 0 are not copied to 'Message N: Text of Most Recent Message' field1.05/16/2011
KB81204SNAP-PAC-S1 with R9.0c firmware does not boot if microSD card is installed2.05/11/2011
KB81283New input ranges for SNAP-AIPM-3 and SNAP-AIPM-3V1.05/9/2011
KB81244Pulsed inputs are not logged to online software service1.05/3/2011
KB81235Energy accumulation precision values1.05/3/2011
KB81266Triggered historic log has mostly commas as data1.04/22/2011
KB81256Logrithmic SuperTrends with pen Minimum scaled <0.01 may cause Runtime problems1.04/6/2011
KB81205PAC Display Runtime hangs when recipe file is downloaded1.04/5/2011
KB80603How to export and import control engines using the Windows registry2.02/14/2011
KB81093Slower strategy, error -539 reported by wireless controller when WAP cycles power 3.01/24/2011
KB81078SNAP PAC brains may reset with repeated writes to a microSD card2.01/19/2011
KB81040PAC Display cannot read digital TPO output point's period and percentage from Mistic brains2.01/19/2011
KB81153Modified strategy downloaded from flash may cause controller problems3.01/19/2011
KB81173'Wrong Object Type' error returned when assigning value to pointer table 3.01/19/2011
KB81135Controller FTP transfers a maximum of 1167 characters 3.01/19/2011
KB81008VELOCITY C PID does not calculate Term_P and Term_D2.01/19/2011
KB81174Setting a string table element from Debug mode may cause unexpected controller behavior2.01/17/2011
KB81075SNAP PAC controller may reset when making an online change2.01/17/2011
KB81094FTP Communication Handle timeout is not applied1.012/20/2010
KB81121Fewer I/O point options shown after moving a high density digital point in configuration window1.012/20/2010
KB81148The GetPIDCurrentSetpoint command always returns zero1.012/20/2010
KB80791Zero-Scale and Full-Scale limits in PAC Control debug mode always show degrees C1.012/20/2010
KB81109PAC Display Historical SuperTrends do not correctly plot Logarithmic Data1.012/2/2010
KB81083Error -95 returned from PAC Control subroutine with a Case or IF statement1.09/27/2010
KB81064Reading the available memory on a microSD card on older SNAP PACs causes problems1.09/27/2010
KB81074Online change in strategy with alternate host tasks may cause controller problems1.09/27/2010
KB81079'Send Configuration to I/O Unit' dialog PAC Manager showing erroneous message in Log1.09/20/2010
KB81080PAC Display's 'Edit > Replace' does not replace table names in table objects1.09/20/2010
KB81077Lost online changes and controller problems caused by 'Start Alternate Host Task' command1.09/20/2010
KB81058File in controller's MicroSD card root directory cannot be deleted1.09/10/2010
KB81055'Store microSD to flash and Restart Device' command fails1.09/1/2010
KB81054Strategy does not autorun from the microSD card1.08/24/2010
KB81062Graphics and windows problems in PAC Display R9.0d1.08/23/2010
KB80698SNAP-AIPM-3 module channels 12 and 13 incorrectly displayed in PAC Manager1.08/23/2010
KB81026'Incorrect device type' incorrectly reported by PAC Redundancy Manager1.08/23/2010
KB81059PAC Control connection lines disconnecting from objects2.08/23/2010
KB81061Some PAC Control compiler errors are not reported2.08/23/2010
KB81042BIT suffix added to non-integer variable when using Edit > Replace, 'Bit index' Offset command2.08/23/2010
KB81023Real-time SuperTrend data plots may not be updated2.08/23/2010
KB81037Some Historic Log files may have incorrect data in projects with more than 21 files2.08/23/2010
KB80821Resizing Message Queue may cause problems in PAC Control Debug mode1.08/5/2010
KB81006'Autocreate Points' configures some analog modules incorrectly1.08/4/2010
KB81011'Find' feature in configure mode may cause problems on some PCs1.08/3/2010
KB81005B100 I/O units cannot be imported into a strategy1.08/3/2010
KB81024Digital reaction cannot be configured for Mistic event/reaction1.07/28/2010
KB81022Cannot type in negative Int32 literals in Add Instruction dialog1.07/28/2010
KB81007Incorrect Snap-AIRTD-10 readings1.07/27/2010
KB81004Possible 'Wrong object type' reported to message queue for subroutine variables1.07/27/2010
KB80928PAC Control strategy from microSD card does not Autorun3.07/27/2010
KB80995PID Input scale not displayed as expected in PIDViewer2.07/19/2010
KB80671SNAP PAC devices added in R8.2 PAC Manager are not available in R8.5a2.07/19/2010
KB81020Random problems with PAC Display Runtime1.07/16/2010
KB81019Long delay when starting PAC Display Basic Runtime1.07/16/2010
KB81021Problems with PAC Display Configurator when resizing Alarm Point dialog1.07/16/2010
KB81014PAC Display Runtime PIDViewer may cause Floating Point Exception1.07/16/2010
KB81013Possible problems with PAC Display tables using the Relative Offsets option1.07/16/2010
KB81012PAC Display Runtime Historic Log does not log String Tables correctly1.07/16/2010
KB81010Possible unexpected results when closing PAC Display Runtime if PIDViewer Open1.07/16/2010
KB81009ComboBox may cause unexpected results in PAC Display Runtime1.07/16/2010
KB81000PAC Control may crash when regenerating reference counts1.07/16/2010
KB80972Negative Decimal Values between 0 and -1.0 not allowed for some Control Engine Driven Dynamic Attributes1.07/16/2010
KB80999PAC Display PID Button Configuration Doesn't Allow Setpoint Min of 0.01.07/12/2010
KB80997PIDViewer Man/Auto button causes PAC Display to close1.07/12/2010
KB80993PIDViewer cuts off top of graph1.07/12/2010
KB80989Incomplete Combo Box setup may cause problems in PAC Display Configurator1.07/12/2010
KB81001Long start-up delay for PAC Display on Windows Vista and Windows 71.06/25/2010
KB80672Historic Logs using Start Triggers do not initially log data3.06/25/2010
KB80673Adjustable alarm points not logged correctly in Runtime Operator Log File2.06/25/2010
KB80677PAC Display Tables do not display Scratch Pad Strings3.06/25/2010
KB80692The focus frame around a text graphic disappears at Runtime if the send string is empty2.06/25/2010
KB80707SuperTrend Y-axis labels < 1 are incorrectly displayed2.06/25/2010
KB80724Alarm state keeps occurring even after ACK in Runtime2.06/25/2010
KB80739PAC Display Configurator View→Find Tag may not find some tags2.06/25/2010
KB80740Edit > Replace, Table Index 'Offset By' option causes non-table tags to appear as tables2.06/25/2010
KB80761Improved PAC Display Runtime User Log-in2.06/25/2010
KB80794A configuration (.otg) file with a Generic OptoMMP Device crashes PAC Manager2.06/25/2010
KB80795PAC Manager's Find OptoMMP Devices dialog displays incorrect IP address for wireless device3.06/25/2010
KB80796Upper Scaled Units incorrect for SNAP-AIRTD-10 Generic Point Type in PAC Manager2.06/25/2010
KB80865SNAP-UP1-D64 and SNAP-ENET-D64 not listed when adding I/O units in PAC Manager2.06/25/2010
KB80866Large Fonts affects screen displays in PAC Manager2.06/25/2010
KB80877Multiple clock synchronizations may cause Runtime problems2.06/25/2010
KB80890'Address of value to check' field in Alarm Events dialog may be cleared3.06/25/2010
KB80947PAC Display Pro reports error at Runtime if string tables in FactoryFloor strategy are used2.06/25/2010
KB80978OptoDataLink does not exchange data if 'depending on Combination' is selected 2.06/25/2010
KB80857MoveNumTableToNumTable command returns -29 with Int64 tables2.06/25/2010
KB80659B3000-B Off-Pulse and On-Pulse measurements return unexpected values3.06/25/2010
KB80703Get & Clear Quadrature Counter command does not clear count from B3000-B2.06/25/2010
KB80899PID loop with a phantom output does not work on B3000-B3.06/25/2010
KB80910B3000-B communications disabled after receiving certain I/O commands2.06/25/2010
KB80931B3000-B MOMO Match Event behavior differs from B30003.06/25/2010
KB80953Enabling or disabling all Events on a B3000-B causes error 10 on digital I/O addresses3.06/25/2010
KB80951Clear All Event Latches command resets B3000-B digital addresses3.06/25/2010
KB80933EventOccurring? command always returns False from B3000-B 2.06/25/2010
KB80994Double-clicking title bar in PAC Control does not minimize/maximize window1.06/24/2010
KB80992PID loop parameters are not displayed in PAC Control Watch window1.06/24/2010
KB80990Problems running PAC Control Basic R9.01.06/22/2010
KB52254Ethernet I/O units drop UDP messages and may timeout if too many messages are received at once4.06/22/2010
KB80991SNAP-AIRTD-8D and SNAP-AIRTD-10 modules unknown in PAC Control 2.06/22/2010
KB80959InfoKB: Design changes to Ethernet interface on Ultimate I/O and Ethernet I/O1.06/21/2010
KB59290Unexpected SNMP cold start traps from Ethernet Devices3.06/21/2010
KB80808InfoKB: Design changes to Ethernet interface on M4SENET-100 card1.06/21/2010
KB80471How to use OptoControl and ioControl on a computer with Windows Vista or Windows 72.06/18/2010
KB80987InfoKB: Incorrect termination switch settings for B3000-B1.06/14/2010
KB80890Network Key field for Wireless LAN might not be wide enough in PAC Manager1.06/11/2010
KB80380Inspection window may display incorrect SNAP PAC Sim IP address2.06/11/2010
KB80913B3000-B analog module values momentarily out of range after 2.5 days of being powered up2.05/28/2010
KB80627OptoControl's 'Write Numeric Table to I/O Memory Map' to SNAP PAC returns -33.05/28/2010
KB80957SNAP-AIV-i modules have incorrect top labels1.05/20/2010
KB80925InfoKB: How to diagnose analog input readings of -32768 using B3000 or B3000-B brains1.05/18/2010
KB80950InfoKB: SNAP-TEX-FB16-H and SNAP-TEX-FB16-L boards are changing from green to black1.05/17/2010
KB80569SNAP PAC devices receiving long 802.1Q VLAN broadcasts may have communication failures2.05/12/2010
KB80480Points 4 through 7 on a Snap-AICTD-8 always report °C4.05/12/2010
KB80574Downloading a large Ethernet/IP configuration file may reset a brain 2.05/12/2010
KB80621Opening a UDP connection too soon in a strategy may return error -443 2.05/12/2010
KB80623Serial brains cannot communicate simultaneously to multiple applications with Ethernet Pass-Through mode2.05/12/2010
KB80678Increased ARP cache size on SNAP PAC controllers helps decrease number of ARP broadcasts2.05/12/2010
KB80687Controller in backgound download mode fails to run strategy on inserted microSD card2.05/12/2010
KB80728Inserting microSD chip may cause SNAP-PAC Controller to Reset2.05/12/2010
KB80730Control engine STAT LED remains turned off if Scanner flag used to stop strategy2.05/12/2010
KB80743High latency network (modems) may cause SNAP PAC controller to I/O unit communication problems 2.05/12/2010
KB80790MoveNumericTableToIOUnit command may cause incorrect points to flash LEDs2.05/12/2010
KB80817Possible problems downloading large strategy to SNAP PAC controller with R8.5a 2.05/12/2010
KB80896Strategy on microSD card with Comment (Block) command stops executing 2.05/12/2010
KB80884Incorrect results from various PAC Control string commands2.05/12/2010
KB80664Controllers talking to Ethernet I/O units on high-latency networks may randomly lock up2.05/12/2010
KB80932Possible intermittent analog module communication by B3000-B1.05/11/2010
KB80929B3000-B and SNAP-PAC-SB series top lid change2.05/5/2010
KB80428Continuous square wave command to B3000-B does not restart waveform1.05/3/2010
KB80489Get & Restart Pulse Period Measurement command delayed on B3000-B 3.05/3/2010
KB80885On-screen keyboard for touchscreens does not pop up for SuperTrend scaling1.04/26/2010
KB52484Possible intermittent operation from surface mount style B6 after a bus reset3.03/11/2010
KB80798Slight possibility of no/poor signal quality from wireless brains and controllers1.02/19/2010
KB80747'Inspect Event/Reaction' dialog in Debug mode may not correctly reflect the Enabled state1.02/17/2010
KB80746Inspecting Event/Reactions in PAC Control debug mode can cause crash1.02/17/2010
KB80772Not all SuperTrend pens may be plotted at Runtime if one pen's value is -NAN1.02/16/2010
KB80780PAC Control strategy filenames with a period cause download problems1.02/12/2010
KB80732Slight possibility SNAP PAC controller may reset when background downloading is enabled1.02/5/2010
KB80115PAC Control and ioControl NumberToString() results different from OptoControl's NumberToString()2.02/3/2010
KB80630PAC Control permits configuring legacy brains to configure SNAP-AIPM/3 1.011/10/2009
KB80690Wireless controllers do not boot from microSD card1.011/6/2009
KB80693SNAP-IDC-32N input states not displayed in PAC Manager1.011/5/2009
KB80668New controllers shipped with a strategy2.010/13/2009
KB80625Ethernet IP multicast address algorithm for implicit connections is not correct2.09/24/2009
KB80589Quadrature counter point B stays at 0 counts regardless of input2.09/24/2009
KB80597FTP 'ls' or 'dir' command causes brain to reboot2.09/24/2009
KB80617Event messages with string plug-ins are truncated2.09/24/2009
KB80558'Dictionary full error' from online changes to strategies with subroutines 3.09/23/2009
KB80594PAC Controller unresponsive after burning SSD strategy to flash memory2.09/23/2009
KB80602Repeated 'Listen for Incoming Communication' on port 502 prevents connection to controller2.09/23/2009
KB80626Problems with Ethernet IP multicast address algorithm for implicit connections and multiple interfaces2.09/23/2009
KB80629Controllers accessing Ethernet brains via high-latency radio network may reset2.09/23/2009
KB80473The 'IVAL Set Frequency' PAC Control command doesn't work with the mistic brains3.09/21/2009
KB80578Migrated PAC Display project may crash due to obscure problem4.09/21/2009
KB80397Changing a point's state should cancel pulse, square wave, and TPO commands2.09/18/2009
KB80642'Rotate' attribute for line object and integer tag causes problems at Runtime2.09/10/2009
KB80663Visibility/Blink does not work correctly for bitmap graphics2.09/10/2009
KB80657SNAP-Custom-AI points are not scaled correctly by PAC Manager1.08/27/2009
KB80604'IVAL Move Numeric Table to I/O Unit (Ex)' only writes to output points1.08/24/2009
KB80652SNAP-PAC-EB brains do not report Ethernet errors detected on external switch ports1.08/12/2009
KB1433Scratch pad commands in ioControl cause error –534 when used with SNAP-B3000-ENET or SNAP-ENET-D644.08/11/2009
KB80590Some recipes don't upload when several are triggered at nearly the same time2.07/17/2009
KB80593View→Dyanamic Attributes may cause PAC Display to crash2.07/17/2009
KB80600Windows dynamic attributes aren't always displayed in PAC Display Configurator2.07/17/2009
KB80598PAC Display Runtime possibly unresponsive on exit if there are many alarms2.07/17/2009
KB80616HiHi alarms sometimes cannot be acknowledged in the Runtime alarm window2.07/17/2009
KB80591Cannot Delete Table from Table Object in PAC Display2.07/17/2009
KB49125FactoryFloor patch for PCI ARCNET support4.07/9/2009
KB80588Auto-stepping unexpectedly pauses on the first block of a subroutine1.06/17/2009
KB80506Possible missing graphics and table changes when upgrading from PAC Display Basic to Pro2.06/15/2009
KB80556Save Project and Load Runtime may fail when Runtime is already running2.06/15/2009
KB80580Some non-integer cutoff values and limits may not be evaluated correctly in PAC Display2.06/15/2009
KB80581'Pointers' group is incorrectly listed in OptoScript action commands1.06/8/2009
KB80577Strategy breakpoints are cleared for all charts1.06/5/2009
KB80576Data logging does not work if log interval is set to zero1.06/2/2009
KB80561Unexpected results from PAC Manager's 'Digital Events - Expanded'2.05/13/2009
KB80555Integer values >16,777,215 may cause inaccurate fill color in PAC Display2.05/12/2009
KB80568On-screen keyboard isn't displayed when editing tables2.05/12/2009
KB49667SNAP‑UP1‑ADS or SNAP‑B3000‑ENET reads zero counts from SNAP-IDC5Q 2.05/1/2009
KB80566Cascading PID Loops may cause download errors1.04/28/2009
KB80534Breakpoint "hand" invisible in subroutines when returning to Debug mode1.04/24/2009
KB80557PAC-S RS-232 ports unresponsive when used with Mistic I/O units1.04/16/2009
KB80562Possible negative RMS readings from SNAP-AIPM3.04/15/2009
KB80559Expanded digital event reaction fails if trigger #1 uses scratch pad bits1.04/3/2009
KB80553Pointer variable tags reference the wrong tag in Browser Configurator 2.03/24/2009
KB80240Numerous writes by an OPC client may delay data updates2.03/24/2009
KB80469Importing a chart with legacy items may cause PAC Control to crash2.03/24/2009
KB80502PAC Control's 'Inspect I/O Unit' reports incorrect values for some I/O combinations2.03/24/2009
KB80551On-screen keyboard missing at Runtime2.03/24/2009
KB80536Runtime text data may be incorrect if window has non-consecutive refresh groups2.03/24/2009
KB80537Can't change from SuperTrend Pen Discrete Deadband in PAC Display Configurator2.03/24/2009
KB80550Changes to some PAC Manager Status Write items not saved2.03/24/2009
KB80283FactoryFloor 'Move Digital I/O Unit to Table' command may change mistic IVAL2.03/11/2009
KB80542'Undefined Command' error during download due to Upper/Lower scaling values set to zero1.03/11/2009
KB80507B3000-B analog command 'Y' returns data in reverse order2.03/11/2009
KB80427Mistic I/O unit is disabled after flash is cleared and PID is inspected2.03/9/2009
KB80531Type R thermocouple readings are about half of the expected values in OptoControl1.03/3/2009
KB80503Controllers report incorrect values for some I/O combinations in 'Inspect I/O Unit' 1.02/23/2009
KB80440Obscured graphics in PAC Display Runtime3.02/19/2009
KB80481Graphics with Alarm Point dynamic attribute may display incorrect alarm state2.02/17/2009
KB80482Table editing remains active in PAC Display Runtime2.02/17/2009
KB80496SuperTrend Pen Discrete and Value Deadband logging always enabled2.02/17/2009
KB80500PAC Display Runtime may hang on exit2.02/17/2009
KB80501Missing parameters from PAC Display Runtime's 'Current Device Config' window for FactoryFloor Ethernet controllers2.02/17/2009
KB80499Recommendations when using the PCI-AC51 PAMUX Adapter Toolkit1.02/11/2009
KB80493'IVAL Move Numeric Table to I/O Unit' commands don't work with some I/O units1.02/5/2009
KB80470How to use a USB-to-Serial adapter with FactoryFloor1.01/14/2009
KB80463PAC Display Runtime does not run as expected when approaching December 31st2.012/29/2008
KB80474High Density Digital IVALS cleared by Get I/O Unit as Binary Value [64] commands 1.012/22/2008
KB80225Security User/Group login does not work as expected in PAC Display Runtime2.012/18/2008
KB80423PAC Display crashes if Scale Window tool is selected and cursor is clicked inside window2.012/18/2008
KB80439PAC Display may crash on exit2.012/18/2008
KB80441Regenerate IO Scanner Tag Names skips the Append String tag for Launch Application dynamic attribute2.012/18/2008
KB80467Runtime crashes if graphic is clicked before its window closes2.012/18/2008
KB80324PAC Manager may crash if no IP addresses are configured2.012/18/2008
KB80461SNAP-CUSTOM-AI analog point options missing in PAC Manager2.012/18/2008
KB80429Cannot read 'IOUNIT;ENABLE' OptoOPCServer status tag2.012/18/2008
KB80224Pressing 'Cancel' from Enter User Credential, may crash PAC Display Runtime2.012/17/2008
KB80072Expanded digital events on I/O unit may not work as expected when configured from a PAC Manager .otg file2.012/17/2008
KB80229Possible Opto Browser Configurator problems if tag file pathname includes an '!'2.012/17/2008
KB80098Importing PAC Manager configuration file with Ethernet I/O may cause problems in PAC Control2.012/17/2008
KB80247PAC Manager incorrectly displays 64-bit scratchpad hex integers2.012/17/2008
KB80258OptoOPCServer stops updating data tag group when invalid memory map address is accessed2.012/17/2008
KB80344Stored strategy archive to flash memory does not survive a power cycle2.012/17/2008
KB80420When 'Change IP Settings' does not set IP address to 0.0.0.02.012/17/2008
KB80443Narrow XY Plots drawn incorrectly2.012/17/2008
KB80120PAC Display Runtime clients may not switch to backup control engine2.012/17/2008
KB80357Disabled I/O unit incorrectly reported as enabled in PAC Control3.012/8/2008
KB80442FactoryFloor and Cyrano controller time incorrect if powered up between 8 p.m. and 11:59 p.m.1.012/5/2008
KB80177Some SNMP initial traps not sent as expected2.012/5/2008
KB80241Cannot send data out serial module port via SNMP2.012/5/2008
KB80313Slow baud rates affect communication between SNAP-PAC-S controllers and serial I/O units4.012/5/2008
KB80316Local I/O Unit not enabled when using SNAP-UP1-M64 as Generic OptoMMP Device2.012/5/2008
KB80328Point features not stored after power cycle on SNAP PAC I/O unit2.012/5/2008
KB80336SNAP PAC event message emails may include extra characters2.012/5/2008
KB80365Writing to Mistic PID output has no effect on the analog output3.012/5/2008
KB80367Disabled I/O unit not reported in point's Inspect window2.012/5/2008
KB80374'Get & Restart Period' command returns zero for period measurement2.012/5/2008
KB80377Problems storing older Image file to PAC Brain with newer firmware2.012/5/2008
KB80434Changing SNAP analog ouput module scaling may cause rare, infrequent reset1.011/24/2008
KB80243SNAP PAC Simulator returns success code for unsupported communication handle2.011/24/2008
KB80150Multiple masters cause problems for Modbus TCP/Serial Integration Kit slave chart2.011/19/2008
KB54359E1 and E2 may not respond if accessed while booting up2.011/11/2008
KB48313Optomux High Resolution Square Wave command and E1 brain boards3.011/11/2008
KB53864E2 may have incorrectly scaled analog input module readings2.011/10/2008
KB80409Problem with SNAP-PAC-S2 serial port's DCD signal1.010/28/2008
KB80380Inspection window may display incorrect SNAP PAC Sim IP address1.010/28/2008
KB80332PAC Display Runtime may crash when trend is full2.010/10/2008
KB80403Slower response from PAC Display projects with many SuperTrends2.010/8/2008
KB80393Serial I/O units can't be inspected prior to running PAC Control strategy1.010/7/2008
KB80385PAC Simulator's 'Store to Flash' doesn't work under Windows Vista1.09/29/2008
KB80396Analog milliamp outputs clamped to an invalid value cause SNAP module to go off-line1.09/23/2008
KB80366Prior FactoryFloor installation may affect R4.1a installation2.09/19/2008
KB80394'Get Frequency' command slow to detect 0 Hz1.09/17/2008
KB80386'Greater?' command and possible problems when converting strategy from OptoControl to PAC Control 1.09/16/2008
KB80379Problems with the 'Enable Communication to Mistic PID Loop' command1.09/16/2008
KB80219Background downloaded strategy stored to flash memory may time out3.09/9/2008
KB80176SuperTrend data not updated and 'Enable Item' Event Log errors2.09/8/2008
KB80360PAC Display reports 'AddItems failed' from converted MisticMMI or PAC Display project2.09/8/2008
KB80361'Save Metafile As...' command sometimes fails in PAC Display2.09/8/2008
KB80362'PID type "input" not currently supported' message from upgraded OptoDisplay project2.09/8/2008
KB80368Can't write to PAC Display PID tags upgraded from Mistic MMI or OptoDisplay2.09/8/2008
KB80382Problems with security enabled objects in PAC Display and local PC accounts2.09/8/2008
KB80389Problems with 'Chosen graphics' option in PAC Display's Find and Replace window2.09/8/2008
KB80390Polygons and polylines do not "Undo" as expected2.09/8/2008
KB80370File→View/Print→Database shows persistent variables as initialize on strategy run1.08/26/2008
KB80364Problems opening PAC Manager R8.1 .otg files with R8.21.08/18/2008
KB55540Uninstalling FactoryFloor R4.0b and reinstalling FactoryFloor2.08/11/2008
KB80355FTP login attempt may fail1.08/5/2008
KB80345Some graphics in PAC Display are not updated1.07/30/2008
KB80346Displaying SuperTrend Binary Log Files with historic modes may cause problems1.07/30/2008
KB80347Alarm sound doesn't play if Persistence Time is configured1.07/30/2008
KB80352Cannot enter negative numbers in Table graphics1.07/30/2008
KB80010Plugins yielding binary data truncate data after '00' sequence3.07/22/2008
KB54754Analog output point inverted scaling may be unstable1.07/18/2008
KB80117Changing the PID setpoint may cause a jump in the PID ouptut1.07/18/2008
KB80326Symbol Factory may not start from PAC Display's edit menu1.07/16/2008
KB80296Possible problems using PAC Control pointers with G4D32RS / SNAP-BRS units2.07/15/2008
KB80311'TPO' digital output feature in PAC Control Basic2.07/15/2008
KB80108Possible errors when importing charts with filenames using Microsoft reserved names2.07/15/2008
KB80222Problems when modifying an 'Append String to String' command in PAC Control2.07/15/2008
KB80278Test Compile of OptoScript code with multiple errors may cause problems2.07/15/2008
KB80307PID loops configured in PAC Manager missing in strategy2.07/15/2008
KB80310Using 'Modify' from I/O point in Strategy Tree may cause odd behavior2.07/15/2008
KB80319PAC Display Runtime may crash after modifying data in tables2.07/15/2008
KB80318Clicking graphic only toggles once in PAC Display1.07/15/2008
KB80147OptoDisplay, ioDisplay, and PAC Display may have problems on PCs with dual‑core processors1.07/14/2008
KB80112Random crashes in PAC Display / ioDisplay / OptoDisplay4.07/9/2008
KB54878Control engine name disappears from the 'Select Control Engine' dialog1.07/8/2008
KB50250Problems with the OptoControl AB Integration Kit1.07/8/2008
KB55058Invalid characters in OptoControl subroutine names cause problems when downloading strategy1.07/7/2008
KB49750Easy OPC VB Forms may cause OptoOPCServer problems1.07/2/2008
KB58368'Move Table to Table' command moves half of Integer 64 Table elements1.07/2/2008
KB56566PAC Display Runtime 'Always in memory' windows option may not update data1.07/2/2008
KB58259Trouble opening Cyrano R3.3a strategy with OptoControl1.07/1/2008
KB50761Errors possible when installing FactoryFloor R4.1a over an existing installation1.07/1/2008
KB60473Rollover problem with 'Seconds since powerup' after 49.71 days2.06/26/2008
KB80025'Always Bootp/DHCP on Powerup' does not work2.06/26/2008
KB80041Excessive I/O unit timeouts possible if communication bursts overwhelm Ethernet network2.06/26/2008
KB80171SNMP community settings for Read or Write permissions may behave incorrectly2.06/26/2008
KB80281TPO period incorrectly set for SNAP-AOD-292.06/26/2008
KB80013Possible momentary off pulse if digital output is already on2.06/26/2008
KB54622TransmitPtrTable and ReceivePtrTable commands may return corrupt data when used with Int64 vars3.06/26/2008
KB54982Problems with very high/low controller error queue values and GetErrorCodeOfCurrentError()2.06/26/2008
KB60359'Convert # to Hex String' command pads extra 0's in front of Integer 64 value3.06/26/2008
KB60697Disabled I/O units are not detected by 'Error on I/O Unit?' PAC Control command2.06/26/2008
KB60930Ethernet I/O units disabled if watchdogs are configured in PAC Control2.06/26/2008
KB62241Possible 'Invalid address' errors, or no response from I/O unit2.06/26/2008
KB80073Interrupting a strategy download may result in a control engine -9 timeout3.06/26/2008
KB80123Copy Date to String commands may cause unexpected control engine behavior3.06/26/2008
KB54782Analog TPO Period setting is not stored to flash on Ethernet devices2.06/26/2008
KB60572SNMP v2 traps may cause a management system crash3.06/26/2008
KB60378'Move Numeric Table to I/O Unit' command does not work with mistic I/O Units2.06/26/2008
KB61524Persistent variables lost on power cycle when using 'Background' download option on SNAP PAC3.06/26/2008
KB80232Some 'Move Table to I/O Unit' PAC Control commands don't work as expected with mistic I/O2.06/26/2008
KB80260'Set Analog Offset' PAC Control command limits offset values3.06/26/2008
KB80275mistic brain totalizer rates truncated by 'Set Analog Totalizer Rate' command2.06/26/2008
KB80280Long timeouts and incorrect PID references in controller error queue 2.06/26/2008
KB80282mistic digital input with 'Period' feature always displays 02.06/26/2008
KB80143Cannot connect to a remote OptoOPCServer from PAC Display2.06/26/2008
KB80285SuperTrend historic log file's date may show 01/02/1601 during Runtime2.06/26/2008
KB59384PAC Display does not update if 'QNAN' is in recipe file2.06/26/2008
KB80110Alarm point's persistence time may be reduced in PAC Display2.06/26/2008
KB80076'Enable Auto Synchronization' does not work in PAC Display2.06/26/2008
KB80116Graphics associated with chart states may not respond as expected after PAC Display upgrade3.06/26/2008
KB80306Sometimes Symbol Factory does not launch from Configurator2.06/26/2008
KB55814I/O unit may go offline when PIDs are inspected from ioControl Debug mode1.06/25/2008
KB80124Modified subroutine may cause controller reset on strategy download1.06/19/2008
KB80236Archived strategies may force download when using different computers1.06/19/2008
KB80179PAC Display may crash when assigning Global Operator Driven Permissions1.06/18/2008
KB59253CPU change for M4RTU controller5.06/17/2008
KB59215SNAP‑B3000‑HA reports 32767 value for SNAP‑AITM, J Type Thermocouple3.06/17/2008
KB80297Synchronizing controller time/date to PC while running strategy timers may cause timer corruption1.06/17/2008
KB80249Delay between adding tags to OptoOPCServer and initial data update1.06/13/2008
KB80216mistic digital input IVALs not cleared by the 'Clear Counter' command1.06/5/2008
KB79038Interrupted Ethernet connection does not resume writing to Ethernet device's memory map2.05/29/2008
KB80248Some SNAP-PAC-S1/S2 controllers may reset on power-up2.05/20/2008
KB80244Digital outputs connected to an AC5 or G4AC5, turn on after being configured 1.05/19/2008
KB49838PAC Project, ioProject, and FactoryFloor applications leak GDI objects on computers running Windows XP7.05/19/2008
KB56567Control engine clock may not synch with PC from PAC Display1.05/6/2008
KB54413Control engine becomes unresponsive if wrong firmware type is downloaded1.05/6/2008
KB53893Table element bits in ioControl and OptoControl not set or cleared as expected1.05/5/2008
KB56364Runtime Operator Log may incorrectly report User-Name of successful security operations1.05/5/2008
KB80068Timeouts or duplicate device names remotely possible in PAC Manager1.05/2/2008
KB57947Reset line does not clear outputs on SNAP-B62.05/1/2008
KB47617Move to Pointer command in OptoControl and Snap Simple 64 pointer cause error during strategy download44/29/2008
KB57840PAC Control or ioControl hex string-to-number commands may give incorrect results4.04/28/2008
KB54388Assignment of unquoted hexadecimal characters to string variable in OptoScript may close ioControl2.04/25/2008
KB51932Cut off strategy name in ioProject control engine Inspect window2.04/25/2008
KB80088High density digital modules not accessible by PAC Display Configurator1.04/21/2008
KB49674G4LC32 may reset when attempting to store too large of a strategy to flash2.04/7/2008
KB48472ioControl and OptoControl only allow Celsius temperature scaling4.04/2/2008
KB80097PCI-AC5 causes -1 in PCI Locator when 'Blink Board' is pressed1.03/31/2008
KB57824'Move I/O Unit to Numeric Table Ex' command may write to wrong table locations4.03/27/2008
KB57299SNAP-PAC-R unit watchdog timers sometimes time out unexpectedly5.03/18/2008
KB59311PAC Display allows import of ioDisplay Basic project missing discrete tag bit assignment2.03/18/2008
KB80077Pentium 4 and newer computers cannot communicate with PCI-AC5 adapter cards1.03/17/2008
KB80027FTP server creates 0 KB length file and does not return error1.03/13/2008
KB80052Ethernet devices may not respond as expected because of duplicate subnets on SNAP PACs3.03/10/2008
KB80043OptoOPCServer's Opto Easy OPC Forms VB example does not compile2.03/10/2008
KB80042SyncRead in OPCCache mode causes OptoOPCServer memory leak2.03/10/2008
KB80028Copy and paste problems with polygon type graphics in PAC Display2.03/10/2008
KB80029Historic logging not starting up in PAC Display2.03/10/2008
KB80066Digital input points not listed in Control Engine Driven Attributes in PAC Display Configurator2.03/10/2008
KB80016OptoOPCServer returns truncated strings to clients1.02/28/2008
KB80059M4RTU 'RUN' LED continually flashes on power up1.02/22/2008
KB80040SNAP-LCM4 controllers with newer clock chip may reset with Cyrano firmware1.02/19/2008
KB60414SNAP-PAC-R control engines' STAT LED may remain dark after firmware downloads or restarts1.02/13/2008
KB80024Sporadic erroneous analog module readings possible with some M4RTU controllers2.02/12/2008
KB61230SNAP-IDC5Q counter item IDs not displayed in OptoBrowser Configurator1.02/8/2008
KB61229Incorrectly displayed X-Y plots in PAC Display 1.02/8/2008
KB61232Unexpected windows opened by PAC Display default window configuration 1.02/8/2008
KB61226Configured PID loops incorrectly displayed by PAC Manager1.02/7/2008
KB60900'Is I/O Unit ready?' ioControl command always returns FALSE and puts errors in the queue2.01/15/2008
KB60280Problems with 'Prompt for name' in PAC Display Recipe Upload Manager1.01/15/2008
KB60829Leap year 2008 affects dates recorded by PAC Display and ioDisplay SuperTrends2.01/14/2008
KB60752'Disable Communication to Point' PAC Control command cannot select mistic output points2.01/14/2008
KB51414Incorrect string length written to scratchpad register with OptoMMP Communication Toolkit, ActiveX example2.01/11/2008
KB57439Pressing ENTER twice from some PAC Manager windows may cause blank screen2.01/11/2008
KB60244Comment markers in recipe format file may interfere with PAC Display upload1.01/11/2008
KB58657Simultaneous "Sync Read" on multiple Ethernet I/O may cause OptoOPCServer crash2.01/9/2008
KB60521Canceled recipe in PAC Display still sends notification 1.01/8/2008
KB60509Possbile incorrect status codes if OptoOPCServer writes to multiple items IDs1.01/8/2008
KB60546PAC Display hot keys may cause problems1.01/7/2008
KB60564PAC Display notification windows incorrectly permit latches and counts1.01/3/2008
KB60818Integer tables ranges in PAC Control watch windows1.01/3/2008
KB58925OptoOPCServer may crash if client uses OptoOPCAuto.dll2.012/27/2007
KB60686Problems with PAC Control Pro when importing chart with disabled legacy I/O1.012/27/2007
KB60610SNAP-B3000-ENET and SNAP-ENET-S64 may drop characters when using a serial module1.012/27/2007
KB59514Applications may not connect to Ultimate controller's host port3.012/17/2007
KB56323Repeated use of FTP communication handles could cause problems6.012/12/2007
KB58048Unexpected PID output values possible when setpoint is set from I/O point3.012/12/2007
KB58160Accessing a NULL pointer may cause a Stack Overflow, Bad Quality data 3.012/12/2007
KB58310PAC Display project and OptoOPCServer clients using 64-bit integer tables may have unexpected results3.012/12/2007
KB58578'Move I/O Unit to Numeric Table' PAC Control command causes intermittent error -34.012/12/2007
KB58607Digital module states not reported accurately using Modbus/TCP protocol and Ultimate I/O2.012/12/2007
KB59458'Ramp Analog Output' command may not work correctly3.012/12/2007
KB58676Unexpected behavior from analog modules if rack voltage is low5.012/12/2007
KB58962Load cell modules may need reconfiguration if used without PAC Control3.012/12/2007
KB60436Configuring graphic's security in PAC Display or ioDisplay may not work as expected1.012/12/2007
KB49822Alarm Point notification option's Enabled checkbox becomes grayed out1.012/12/2007
KB60298Unable to view more than 16 PID loops on SNAP PAC brains1.012/11/2007
KB60177'Import/Copy IO Unit Image' in PAC Manager may cause error message1.012/11/2007
KB60219'View as Hex' in PAC Manager shows Int32 scratchpad area values incorrectly1.012/11/2007
KB54410Downloading firmware from PAC Manager / ioManager to multiple devices may not complete successfully1.012/3/2007
KB60031Moving I/O points on an I/O unit in PAC Manager may cause an error1.012/3/2007
KB54676Out of range float literal assignments in OptoScript could cause strategy download problems1.011/30/2007
KB60001Possible compiler errors in PAC Control if subroutine receives variable instead of a literal1.011/30/2007
KB57333PAC Display / ioDisplay may not open older project4.011/29/2007
KB57412Runtime Operator Logging could affect PAC Display or ioDisplay at startup3.011/29/2007
KB53750Digital point’s IVAL becomes non-responsive while disabled in OptoControl debugger2.011/29/2007
KB59832Grouped graphic objects with polylines may have sizing problems in PAC Display3.011/27/2007
KB59789Changes to PAC Display project may cause problems if loaded during Runtime2.011/27/2007
KB56685Possible odd behavior from PAC Controllers if numeric literals are passed in subroutines1.011/26/2007
KB59096OptoScript allows some commands be used with I/O points on I/O units that don't support the commands2.011/26/2007
KB58312PAC Control action block names may be changed from debug mode2.011/26/2007
KB51029Changes from string literal to null string not saved by PAC Control and ioControl string commands2.011/26/2007
KB57396Text object font in PAC Display may intermittently change under Windows 20002.011/13/2007
KB57630Analog input averaging on a B2 stops if input readings go out of range2.011/7/2007
KB51444View Messages window in ioTerminal may report differently from actual controller error queue2.011/7/2007
KB50356SQL Server 2000 database cannot read/write data to OptoControl tables with OptoConnect 2.011/7/2007
KB57145Runtime Operator Logging not recording some ‘Send Discrete’ functions correctly in PAC Display/ioDisplay3.011/7/2007
KB51989Error –10038 possible when returning to ioControl Debug mode after inspecting PIDs in a prior session2.011/6/2007
KB59334IP address with leading zeros causes error in PAC Manager's Inspect I/O Unit window2.011/2/2007
KB59249Inspecting the SNAP PAC controller error queue when an error references an I/O point may cause problems2.011/2/2007
KB53641When Ethernet peer-to-peer OptoControl controllers can no longer exchange data6.011/1/2007
KB59627'Bit Change' command in PAC Control may cause controller problems 1.010/25/2007
KB59775Changes to PAC Display windows properties affects newly added graphics' visibility2.010/22/2007
KB59782Clicking 'Export' button in PAC Display alarm points window may display two unexpected messages2.010/22/2007
KB59684"Uploading Recipe to File..." message never finishes PAC Display recipe upload1.010/15/2007
KB57195Repeated use of 'Set TPO Percent' PAC Control command, keeps output point turned on2.010/12/2007
KB57916Mistic I/O units going offline may affect operation of other mistic I/O units connected to SNAP-PAC-S13.010/12/2007
KB59258Some PAC Control commands under specific conditions, may cause controller problems3.010/12/2007
KB59467Moving an Int 64 value to a PAC Control string character causes 'Undefined command during download' error2.010/12/2007
KB58672Numeric recipe table indices are reset when >20472.010/12/2007
KB59487Append String option in PAC Display Application Manager may fail at Runtime2.010/12/2007
KB59513Historic data logging does not resume after reconnecting to PAC Display scanner2.010/12/2007
KB58600"Can't find Format File" message in PAC Display from recipe upload3.010/12/2007
KB59428Installing firmware via Ethernet with PAC Manager may fail if there are files on the I/O Unit 1.09/24/2007
KB57068ioDisplay reports it cannot open a project1.09/21/2007
KB56647OptoVersion does not find some PAC Project or ioProject Pro and Basic applications1.09/21/2007
KB57142'Write Only' Generic Read/Write fields in PAC Manager cannot be modified1.09/19/2007
KB59272Converted OptoControl strategies in PAC Control may have problems converting some TPO commands1.09/18/2007
KB57282OptoControl time of day functions do not work on newer SNAP‑LCSX and SNAP‑LCM4 controllers with older firmware1.09/18/2007
KB59170Requesting 127 Modbus TCP holding registers causes incorrect data display1.09/7/2007
KB59015AC5 and G4AC5 cannot turn on digital output point 201.08/27/2007
KB57560SNAP-SCM-485-422 not recognized after 'Restart I/O unit from powerup' from PAC Manager 1.08/16/2007
KB57879Analog modules may incorrectly go to maximum output using B2 or E23.08/8/2007
KB57712Tag database file (.otg) downloaded to E1 or E2 causes problems1.08/2/2007
KB57594'Unable to Load Board Objects' message from PAC Display1.08/1/2007
KB58200When 'Time of Day' is met, OptoDataLink may continually exchange data2.07/30/2007
KB58374Switching primary and secondary servers may truncate older, SuperTrend pen data in PAC Display2.07/30/2007
KB58576Upload recipe files with table indices >2047 may crash PAC Display1.07/30/2007
KB58125OptoOPCServer Browser Configurator gets error 0x80004005 if OptoControl strategy with mistic I/O is opened2.07/30/2007
KB58573Historic logs configured with Start Triggers always have data log points scanned1.07/27/2007
KB58574PAC Display recipe file formatting allowing >2048 consecutive table elements may cause problems1.07/27/2007
KB58575Downloading a recipe file with more than 2048 consecutive table elements causes problems1.07/27/2007
KB58482Multiple data links using 'Opto 22 Device' condition are not detected in OptoDataLink2.07/25/2007
KB58369Control Engine Status attribute may not indicate current control engine status2.07/25/2007
KB58201Frequent OptoDataLink data exchanges at unexpected 'Time of Day'2.07/25/2007
KB58233PAC Manager's Analog Bank feature reads the lower 4 points of high density analog modules2.07/20/2007
KB58324ioManager may crash if control engines with PIDs are inspected2.07/19/2007
KB58337PAC Display AutoCorrect Tags may list unaffected tags in results file1.07/17/2007
KB57925PAC Manager Port number >32767 displays negative number when inspecting I/O unit2.07/16/2007
KB57775PAC Manager error when I/O Unit Image file does not match the analog modules installed on brain1.07/16/2007
KB58203OptoOPCServer may crash when clients disconnect1.07/16/2007
KB57625PAC Display historic logging may fail the first time the log file is written to1.07/16/2007
KB57748Table data in historic log is replaced by another table's data in PAC Display 1.07/16/2007
KB57683Unable to select Bit Index in required field for Notification setup in PAC Display1.07/13/2007
KB54176‘make all’ fails in SNAP OEM Brain Open-Source Software CD2.07/12/2007
KB50922OptoTerm crashes when downloading Forth or controller download files2.07/11/2007
KB51892Unexpected serial I/O unit PID behavior when accessed by an OptoOPCServer client2.07/11/2007
KB57572PAC Display alarm log may not record alarm point's return to normal state1.07/10/2007
KB57440PAC Display error at Runtime if analog points setup for direct I/O unit read2.07/10/2007
KB48743OptoTerm crashes when inspecting controllers with Cyrano firmware, or controllers in loader mode3.07/10/2007
KB57527'Unable to load Board Objects' message when regenerating I/O scanner tags in PAC Display 1.07/9/2007
KB53614Data streaming synchronization to multiple hosts modified in SNAP PAC and Ultimate I/O controllers3.07/9/2007
KB54363Inconsistent results from ioControl ‘Generate Reverse CRC-16 on Table (32 bit)’ command 3.07/9/2007
KB54505Open communication handle left after ioControl subroutine exits, may affect controller behavior2.07/9/2007
KB54853Reading or writing to numeric I/O unit scratchpad may return –29 error2.07/9/2007
KB54940Illegal pointer assignments in ioControl subroutines may cause controller lockup3.07/9/2007
KB55154ioControl command ‘Set End-of-Message Terminator’ cannot return error3.07/9/2007
KB55166‘Set End-of-Message Terminator’ may cause problems if set to null when used with ioControl file comm handles3.07/9/2007
KB55168No data waiting for ‘Receive String Table’ immediately expires timeout in ioControl3.07/9/2007
KB55977Receiving data with multiple EOM characters via a serial communication handle yields unexpected results2.07/9/2007
KB56192Null pointers assigned to any I/O point may eventually cause a controller reset2.07/9/2007
KB56283‘Generate Reverse CRC-16 On Table (32-bit)’ command returns wrong value2.07/9/2007
KB56657An intense burst of Ethernet broadcast traffic may cause multiple controllers to stop communicating3.07/6/2007
KB56666Multiple PAC Control/ioControl communication file handles running simultaneously in multiple charts3.07/6/2007
KB56787MoveIoUnitToNumTable PAC Control/ioControl command may write to wrong table index5.07/6/2007
KB57617'Set Analog Filter Weight' command may disable I/O unit2.07/6/2007
KB56793IVAL not cleared with ‘Get & Clear On‑Latch’ or ‘Get & Clear Off‑Latch’ commands3.07/6/2007
KB51181Config EEPROM ‘Set’ button in PAC Control / ioControl Debug mode disables I/O unit3.07/6/2007
KB51806Paused, expired uptimers and the ‘Timer Expired?’ ioControl command3.07/6/2007
KB51848Ethernet I/O analog point IVALs not displayed in I/O Unit inspection window5.07/6/2007
KB53147Potential problem using FTP communication handles, reports an error ‑4087.07/6/2007
KB57605Incorrect on/off states returned for standard SNAP digital modules in rack positions 8 - 151.07/5/2007
KB54532Setting point's filter weight may cause filtered value to go to ‑1.#INF2.07/5/2007
KB54562Unexpected ‘Ramp Analog Output’ PAC Control/ioControl command response if ramp endpoints are out of range3.07/5/2007
KB57162Possible intermittent TCP communication through Outgoing PPP on SNAP PAC and Ultimate control engines3.07/5/2007
KB56600ioControl / PAC Control ‘Move Numeric Table to I/O Unit’ command attempts to write to disabled I/O units3.07/5/2007
KB57101Attempts to serially install Ethernet I/O firmware may cause mscomm32.ocx error1.07/3/2007
KB58101Watchdogs do not work if higher density modules are configured2.07/3/2007
KB56073Expanded support for 64 high-speed digital I/O points on SNAP‑PAC‑R11.06/29/2007
KB57870Online Help not available from PAC Display Event Log Viewer1.06/26/2007
KB57143Network computers not available for PAC Display SuperTrend Remote Logging1.06/4/2007
KB57575‘Find and Replace’ tool in PAC Control may not work correctly in OptoScript blocks1.05/23/2007
KB57406Filename from string tag may fail for trigger-based event in PAC Display2.05/23/2007
KB57202Some ‘Status Write’ commands in PAC Manager may not work1.05/23/2007
KB57243Creating new I/O unit from image source in PAC Manager does not work for SNAP‑UP1‑M64 or SNAP‑ENET‑S641.05/23/2007
KB57401PAC Display historical log file entry may only have commas2.05/23/2007
KB57405Message box for new alarm points in PAC Display may not appear2.05/22/2007
KB57306Rapidly changing PAC Display/ioDisplay alarm point states may have unexpected results 3.05/22/2007
KB57387Window appears to not open when configured graphic selected in PAC Display2.05/22/2007
KB57271Event messaging on SNAP-PAC-EB23.05/21/2007
KB57251Limited communication watchdog operation on SNAP-PAC digital outputs2.05/21/2007
KB56949DTR signal on SNAP-PAC-S1 port 0 is asserted at power-up2.05/21/2007
KB57248Watchdog configured in PAC Control on digital output point may not work2.05/21/2007
KB57247PAC Manager Inspect window information may be truncated2.05/21/2007
KB57385Auto Synchronization of controller time to PC time may be off by 12 hours in PAC Display Runtime3.05/15/2007
KB57300‘Condition’ criteria may affect ioDisplay alarm point characteristics1.05/7/2007
KB57146Trigger based historic logging may record data once instead of using stop trigger conditions2.05/1/2007
KB57139‘Switch to Loader Mode’ command in PAC Manager is not supported by all Ethernet I/O units1.04/27/2007
KB57140I/O unit configuration not created with PAC Manager on PAC units1.04/27/2007
KB57015Erratic tag quality from OptoOPCServer if custom client uses tag name with trailing spaces2.04/26/2007
KB51379Event/Reaction conditional commands in ioControl may add errors to the controller error queue3.04/24/2007
KB56892SNAP-PAC-EB1 and SNAP-PAC-EB2 tags not available in OptoOPCServer Browser Configurator2.04/23/2007
KB56439Modbus/TCP writes to digital outputs on SNAP-PAC-R2 are unsuccessful2.04/23/2007
KB56419‘Set Mistic PID P Term’ with SNAP-PAC-S1 and Mistic I/O units, affects PIDs2.04/23/2007
KB57034Simultaneous connection requests for the same TCP port on ENET1 and ENET2 may affect SNAP-PAC-S1 operation3.04/23/2007
KB56847OptoOPCServer returns erratic tag quality if OPC client refers to data item incorrectly2.04/23/2007
KB56458Opened window in PAC Display may show older data until refreshed by OptoOPCServer1.04/12/2007
KB56851PAC Display historic logs may not log string data as expected3.04/11/2007
KB56849Some ioDisplay to PAC Display migrations may not be completed2.04/10/2007
KB56759Table objects in PAC Display Runtime appear to not be selectable2.04/10/2007
KB56854Alarm sound may not restart if PAC Display point goes back into alarm2.04/10/2007
KB56852Alarm sound may play continuously in PAC Display2.04/10/2007
KB56749‘Convert Number to String Field’ OptoControl command with float value gives incorrect results1.04/5/2007
KB55105CPU usage may increase when OptoOPCServer accesses I/O tags3.04/3/2007
KB55747‘Add item’ returned from ioDisplay if I/O point is not supported1.03/29/2007
KB55840Security enabled graphic in ioDisplay allows most users to activate it in non-English Windows operating systems1.03/29/2007
KB56429Control engines deleted from PAC Display project may cause errors1.03/28/2007
KB56430Recorded operators in ‘Runtime Operator Log File’ for security enabled objects in PAC Display1.03/28/2007
KB56613Integer 64 and 64-point I/O units with some PAC Control block commands2.03/27/2007
KB56346PAC Control strategies converted from ioControl do not allow addition of certain modules1.03/27/2007
KB54041ioManager port configuration produces message 0xFFFFFFF32.03/27/2007
KB56431Problems when saving an imported ioDisplay project in PAC Display1.03/26/2007
KB55299Divide by zero operation returns valid results in ioControl strategy2.03/20/2007
KB56343When the Opto 22 Device data remains the same and OptoDataLink doesn’t exchange data1.03/20/2007
KB55767ioManager not assigning Gateway IP on M4SENET-100 and some Ethernet I/O units2.03/19/2007
KB55406Overflow error possible resulting from converted OptoControl to ioControl strategy with Event/Reactions2.03/19/2007
KB53350ioManager incorrectly displays negative counts for SNAP-IDC5Q 2.03/19/2007
KB52731‘Reset Points to Default’ command in ioManager resets Ethernet I/O units3.03/19/2007
KB52719Inactive Browse button for ‘Download file from I/O Unit’ command in ioManager2.03/19/2007
KB54102‘Edit PID has a bad format’ message in ioManager when copying and pasting I/O unit configurations2.03/19/2007
KB56017mistic PIDs become unresponsive on re-download of large ioControl strategy1.03/14/2007
KB55302ioDisplay stops updating windows when float values reach +3.4e38 or ‑3.4e383.03/12/2007
KB55854ioDisplay may terminate unexpectedly when no windows are open and an empty area of the toolbox is clicked2.03/9/2007
KB53707ioDisplay ‘Synchronize at Runtime startup’ settings may not work for different user2.03/9/2007
KB54082Changes to XY-plot graphic in ioDisplay Configurator 2.03/9/2007
KB55259ioDisplay project configured for on-screen keyboard, requests password from regular keyboard2.03/9/2007
KB55618Duplicated metafile graphic not visible in ioDisplay 2.03/9/2007
KB53303ioDisplay alarm points are truncated in alarm window3.03/9/2007
KB53476ioDisplay historic alarm graphic may display two entries when alarm point is triggered2.03/9/2007
KB55253Canceling password window closes calling window in ioDisplay 3.03/9/2007
KB55848Serial port on SNAP-PAC controllers may return errors including -522.03/8/2007
KB55161SNAP-PAC-R1 may report incorrect digital or quadrature counts2.03/7/2007
KB54846Default gateway configuration on primary port may affect secondary port communication on PAC controllers2.03/7/2007
KB54480Variable names matching OptoScript command names may cause compiler problems in ioControl1.03/6/2007
KB51837Re-enabled SNAP-PAC-S1 redundant ports cannot re-enable SNAP-PAC-R1 2.03/2/2007
KB54744‘Find and Replace All’ ioControl function may close application1.03/1/2007
KB53151Using a \” in a literal affects how ioControl’s OptoScript displays subsequent text2.03/1/2007
KB54482Like named ioControl charts and subroutines may cause controller reset1.03/1/2007
KB54753‘Replace All’ command in ioControl OptoScript, replaces text in wrong location1.03/1/2007
KB55187Invalid serial port value in communication handle command successful on SNAP-PAC-S12.03/1/2007
KB47958From OptoControl, Ethernet-based I/O units may go offline if number of characters waiting not checked before receiving characters3.02/26/2007
KB55236SNAP-PAC-S1 in peer-to-peer network may reset if controller is stopped2.02/23/2007
KB55825Scratch pad not stored to SNAP-PAC-S1 flash EPROM1.02/23/2007
KB55091‘Set I/O Unit from MOMO Masks’ ioControl command affecting input IVALs on SNAP-PAC-S1 to serial I/O unit2.02/21/2007
KB55182‘IVAL Set I/O Unit from MOMO Masks’ ioControl command not setting disabled serial I/O unit2.02/21/2007
KB53454Blank pop-up may appear in Opto Browser Configurator when updating server database2.02/21/2007
KB55930Problems while printing ioControl subroutine or chart graphics2.02/20/2007
KB52576Unexpected results if SNAP-AITM type module or SNAP-AIRTD is reconfigured with a different Point Type2.02/14/2007
KB55584Large Int64 table element value partially visible in ioControl Debug mode1.01/23/2007
KB55252Text placed on Table graphic, hidden in ioDisplay Configurator 2.01/11/2007
KB55262Some ioDisplay functions may not write to the PC hard drive 1.01/9/2007
KB53373Calibration of analog inputs from ioManager may not take effect3.01/5/2007
KB55177ioDisplay alarms not always showing correct state when using Condition tag1.01/5/2007
KB51899Unable to set SNAP-AILC parameters from ioManager2.01/5/2007
KB52200ioDisplay Trend graphic without configuration causes problem at Runtime2.01/5/2007
KB52368ioDisplay Configurator may crash when SuperTrends are configured for very low scaling and refresh rates2.01/4/2007
KB55178ioDisplay alarm point configured to a Value ‘Tag’, does not indicate alarm condition1.01/4/2007
KB51758The Send Value ‘Offset’ feature in ioDisplay not working as expected2.01/4/2007
KB54490Alarm sound may not activate if ioDisplay launched with PC shortcut1.01/4/2007
KB51157ioDisplay unresponsive from corrupt Symbol Factory graphic2.01/3/2007
KB55175X-Y Plot ‘Show Legend in Runtime’ option in ioDisplay is always selected1.012/27/2006
KB55016Alarm state priority in ioDisplay kept if all alarm states are set1.012/27/2006
KB52680‘Find’ in running OptoControl or ioControl strategy with very large charts may cause crash2.012/21/2006
KB53999ioControl archived strategy on control engine2.012/21/2006
KB52544Memory leak in ioControl and OptoControl Find option3.012/21/2006
KB52178Some OptoScript commands used with Integer 64 may cause unexpected controller behavior2.012/20/2006
KB51958ioControl command ‘Convert Number to Formatted Hex String’ returns incorrect string2.012/19/2006
KB53811SNAP-UP1-ADS may return incorrect digital or quadrature count values1.011/7/2006
KB54377SNAP-PAC-S1 asserts RS-485 port transmitter on power-up1.011/7/2006
KB54495TCP connections to Modbus server not closed correctly on SNAP-PAC-R and Ultimate I/O controllers1.011/6/2006
KB54324ioControl ‘Move Numeric Table to I/O Unit’ command changes input point IVALs2.011/6/2006
KB53751Possible reset from repetitive use of ioControl ‘Get & Restart On-Pulse Measurement’ or ‘Get & Restart Off-Pulse Measurement’ commands3.011/6/2006
KB52604Unexpected behavior such as analog point values not updating on SNAP-PAC products1.011/6/2006
KB53128When an I/O unit returns unexpected results from analog and digital I/O in ioControl2.010/24/2006
KB53347PID Output not responding to ioControl ‘Set Mistic PID Input’ command on Mistic I/O unit2.010/20/2006
KB52143Storing strategy to SNAP-LCE flash EPROM causes communication loss2.010/20/2006
KB52410ioControl ‘Start Chart’ may return –5 status if eight charts are already running on SNAP-PAC-R controllers2.010/20/2006
KB52733Event timers on Ethernet I/O units begin counting down as soon as they are configured2.010/20/2006
KB51833Changes to SNAP-PAC-R1 and SNAP-PAC-R2 Scanner Flags have no effect 2.010/20/2006
KB52706Incorrect default millivolt scaling for SNAP-AITM and SNAP-AIMV type modules on Ethernet I/O units4.010/19/2006
KB52885Analog output modules in positions 8 to 15 do not respond to ioControl ‘Ramp Analog Output’ command4.010/19/2006
KB52485Ethernet controllers and brains may reset if ‘Start PPP’ sent before PPP initialized2.010/19/2006
KB52495I/O unit may reset if Outgoing PPP link is not established and event message emails or other TCP transmissions become active 2.010/19/2006
KB53950Analog input point filtering continues to include out of range count values, ‑32768, on Ethernet I/O units2.010/19/2006
KB54095Third-party driver ‘biolsp.dll’, may affect OptoOPCServer operation1.010/13/2006
KB54208Pointer variables and ‘Find’ option in OptoControl may show results that don’t contain variable1.010/12/2006
KB53175Converting strategies from OptoControl to ioControl and some string commands2.010/3/2006
KB52595B6 analog outputs may not go to configured watchdog values1.09/27/2006
KB52846How to configure the Windows XP firewall for ioManager and IP address configuration1.09/15/2006
KB50238Under certain conditions, manually enabling I/O unit from ioControl debug mode may cause problem1.09/8/2006
KB50621Pre R7.0 ioControl strategies and PID loop’s Output Maximum Change Rate1.09/7/2006
KB50622ioControl Replace feature may have unexpected results if OptoScript code ends in newline1.09/7/2006
KB52612How to delay the automatic startup of ioDisplay Runtime1.09/6/2006
KB53389Downloading and starting an ioControl strategy with PIDs on Ethernet-based I/O units, may cause outputs to spike 2.09/5/2006
KB50037Accessing string variables or string table elements with ioDisplay or OPC Client may cause error4.08/29/2006
KB53062ioDisplay and OptoOPCServer clients slow to reconnect when using Windows XP, SP21.08/29/2006
KB50335Limited number of ports with the ‘Listen for Incoming Communication’ ioControl command5.08/29/2006
KB53125Modifying Custom Caption in windowless project, crashes OptoDisplay Configurator1.08/23/2006
KB53294FactoryFloor controllers using ARCNet as host port, and booting into loader mode1.08/22/2006
KB53137G4IDC5Q occupies only one module position in ioControl and OptoControl1.08/16/2006
KB50623The ioControl ‘Replace’ function does not indicate changes made to OptoScript code 1.08/1/2006
KB50631‘TValue::Get’ message from ioDisplay Runtime if Send Discrete and Send Value are configured for same graphic1.07/31/2006
KB50630AutoCorrect Tags tool in ioDisplay occasionally omits tags1.07/31/2006
KB52483Unexpected reset behavior from surface mount style B61.07/27/2006
KB51547Streaming interval and improved performance from SNAP-PAC-R controllers4.07/21/2006
KB52780OptoENETSniff is not capturing data1.07/21/2006
KB51548Analog bank area reporting 0 (zero) for non-existent points in SNAP-PAC-R controllers2.07/17/2006
KB52620Activated B6 watchdog causes random analog output values1.07/17/2006
KB52394Some ioControl analog filter weight commands cannot select analog points configured on Ethernet I/O units2.07/17/2006
KB51388GetValueFromName ioControl command may cause –12 error3.07/5/2006
KB51461Saving an ioControl strategy may have unexpected results3.07/5/2006
KB50224Renaming expanded numeric or string tables used in ioControl and OptoControl watch windows3.07/5/2006
KB50694OptoControl analog point scaling configuration is not overwritten by the ioManager .otg file2.06/26/2006
KB50786Adapter Card Toolkit installations2.06/23/2006
KB50851Counters configured on SNAP-PAC-R1 and SNAP-PAC-R2 not available to ioControl commands1.06/22/2006
KB50840Windows clipboard locks when attempt to paste graphic into ioDisplay window fails1.06/22/2006
KB50824Problems with moving analog points on a serial B3000 in ioControl1.06/22/2006
KB51005ioDisplay alarm points may ignore discrete tag values1.06/21/2006
KB51648Attempts to read flash memory on the SNAP-PAC controllers3.06/20/2006
KB52008How to connect OptoConnect to a SQL Server 2000 database on a remote computer2.06/20/2006
KB52179Reference to a PID by another PID may cause an ‘Undefined command’ error in ioControl1.06/19/2006
KB51834Storing to flash on brains does not store SNAP-AILC load cell parameters3.06/16/2006
KB52053SNAP-PAC-R2s configured in ioControl as I/O units may behave unexpectedly2.06/16/2006
KB51140OptoVersion does not scan Professional and Basic executables1.06/13/2006
KB51150Symbol Factory graphics dragged, dropped, and then modified, may disappear in ioDisplay Configurator1.06/8/2006
KB51612Continuous alarm sound in ioDisplay3.05/31/2006
KB51599I/O unit limits Type C thermocouple temperature range on SNAP‑AITM‑22.05/26/2006
KB51716SNAP-PAC-R controllers and PID loop’s ‘Min Change’ option2.05/26/2006
KB51709Data logging on SNAP-PAC-R controllers3.05/26/2006
KB51707Communication watchdog on SNAP-PAC-R controllers2.05/25/2006
KB51556Pamux B6 and the communication watchdog timer2.05/24/2006
KB51232ioDisplay Configurator produces ‘Unable to Load PID Objects’ error1.05/24/2006
KB51346Uploaded ioDisplay or OptoDisplay recipe destination file is inaccessible2.05/19/2006
KB50320Charts with names 35 characters or longer in ioControl, OptoControl, ioTerminal, and OptoTerm3.05/19/2006
KB51463File time from ioManager for a file stored on an Ultimate I/O unit 3.05/5/2006
KB51004SNAP-PAC-S1 and disabling of mistic digital outputs in ioControl3.05/4/2006
KB51056Inspecting pointers during ioControl Debug mode may cause errors3.05/2/2006
KB51039Disabling a TPO digital output disables the Ethernet-based I/O unit2.05/1/2006
KB51071TPO digital outputs and setting the period to 0 (zero)2.05/1/2006
KB50974SNAP-AOD-29 TPO module and setting the analog TPO period2.05/1/2006
KB50301ioControl subroutines and digital output pointer types3.05/1/2006
KB50867Improved the way ioDisplay handles metafiles 2.05/1/2006
KB51176SNAP-AILC scaling remains at default setting2.05/1/2006
KB51283Stopping and starting ioControl charts with subroutines may cause control engine reset2.05/1/2006
KB51068Using ‘Is I/O Unit Ready?’ on a restarted I/O unit causes lock up2.05/1/2006
KB50821Control engine continues to update disabled serial B3000 analog point3.05/1/2006
KB50222SNAP-PAC-S1 and serial I/O unit enabling from ioControl3.05/1/2006
KB47890Invalid analog readings possible while erasing and writing to flash memory on Ethernet-based I/O units4.05/1/2006
KB51159Inspecting PID loops in ioControl debug mode1.05/1/2006
KB51184Windows metafile graphics may disappear in ioDisplay Configurator1.04/28/2006
KB51289Too many 'elseif' statements in OptoControl may cause an error during download1.04/27/2006
KB49909Analog input filter weight goes to zero when ioControl strategy is run3.04/27/2006
KB49463Modified metafile graphics in ioDisplay Configurator3.04/27/2006
KB50058SNAP-PAC-S1 communicating to a G4D32RS I/O unit with ioControl4.04/27/2006
KB49973Opening OptoEnetSniff data log files for analysis3.04/27/2006
KB48646Copy Current Error To String command in ioControl may misreport a message3.04/27/2006
KB48069WriteNumToIoUnitMemMap command in ioControl not writing values to SNAP-LCE scratchpad3.04/27/2006
KB48223ioDisplay may display an extra character in some negative numbers4.04/27/2006
KB47464Points configured as disabled in ioControl Configure mode, become enabled when the strategy is run4.04/27/2006
KB1435Inspecting persistent variables in a Snap-LCE strategy may cause unexpected behavior3.04/27/2006
KB48174Incorrect SNAP-AOD-29 period measurement by serial B30003.04/27/2006
KB48353High density digital breakout board jumpers are reversed2.04/27/2006
KB47505Some B200 PID settings in OptoControl may affect PID scanning2.04/27/2006
KB1430'Move to Pointer' command in OptoControl, and Snap Simple 64 pointer cause error during strategy download1.04/27/2006
KB1424Null string assignments not permitted after a strategy is saved and closed out of ioControl4.04/26/2006
KB48279Data quality may appear to change states frequently in OptoDisplay and ioDisplay4.04/25/2006
KB48591Moving I/O points to a valid position in OptoControl2.04/25/2006
KB48542ioDisplay and High Density Digital module point access3.04/25/2006
KB49175Time Stamp and Date Stamp are reporting the control engine’s time and date in ioDisplay 3.04/25/2006
KB48677‘Enable Communication to I/O Unit’ command and restoring I/O configuration in ioControl3.04/25/2006
KB48938Mismatched I/O module configuration may affect SNAP-UP1-M64 startup3.04/25/2006
KB49316Inspecting SNAP-B3000-ENET PIDs causes 'Invalid memory location' message 2.04/25/2006
KB49424Load cell commands in ioControl change when added to a strategy3.04/25/2006
KB49807OPC clients accessing unavailable string tag types, may affect updates in OptoOPCServer3.04/25/2006
KB47756The Lo alarm in ioDisplay may not trigger4.04/25/2006
KB47872Digital points may not be available to ioDisplay Historic Data Logs4.04/25/2006
KB48089PID ‘forced value’ parameter may be limited by ioControl4.04/25/2006
KB48237SNAP-IDC-HDB and SNAP-ODC-HDB header connector orientation3.04/25/2006
KB47789SNAP-AIVRMS and SNAP-AIARMS module readings may become fixed at -327683.04/25/2006
KB49885ioDisplay Runtime and the Enable SuperTrend Pen window2.04/24/2006
KB49250Improved true power readings at low current range from SNAP‑AIPM2.04/24/2006
KB49213SNAP-AIPM true power reading changes +/- signs2.04/24/2006
KB48507Volt-Amp and power readings from SNAP-AIPM modules are partial scale2.04/24/2006
KB47724I/O point name change in tag database file is imported as a new point in ioControl 2.04/24/2006
KB1428The AND/OR operator option appears in an action block while in Online mode in ioControl4.04/24/2006
KB49261Digital point features and non-Digital Point commands in OptoControl2.04/24/2006
KB49872Trends in ioDisplay Basic may appear to freeze when data is constant4.04/24/2006
KB49581Enabling IP Filtering for IP Security on control engines affects ioControl strategy downloads2.04/24/2006
KB50015ioDisplay Runtime Basic and values sent to a control engine3.04/24/2006
KB49757Incomplete alarm time displayed in ioDisplay Professional2.04/24/2006
KB50118Windows dynamic attribute and password protected windows in OptoDisplay2.04/24/2006
KB48977G4FUSE may cause intermittent G4 output module operation 2.04/24/2006
KB48510SNAP-B3000-ENET may reset under particular high speed I/O conditions and high speed SNAP-IDC5Q counting4.04/24/2006
KB47922ioControl allows assignment of a larger than 32-bit number to an Integer 32 variable4.04/24/2006
KB1432Control engine change and log file name from a String Name, disables historic logging to a file in ioDisplay3.04/24/2006
KB1426Ethernet brains may not establish PPP connections at 19200 bps or faster baud rates3.04/24/2006
KB1431ioDisplay SuperTrend RAM usage value displayed is incorrect4.04/24/2006
KB1429Adding a tag in OptoOPCServer Browser Configurator sometimes causes error 0xc00400083.04/24/2006
KB47577Some graphics may become focus-frame and beep enabled in ioDisplay4.04/24/2006
KB47607OptoDisplay and ioDisplay object dimensions are limited to 999 when entered in the Graphic Dynamic Attributes window4.04/24/2006
KB48061Engineering unit scaling issue when using serial B3000 with SNAP‑AIVRMS and SNAP-AIARMS modules4.04/24/2006
KB47868SNAP-AIVRMS and SNAP-AIARMS may have periodic inconsistent readings by serial B3000 3.04/24/2006
KB48056Serial B3000 issues in firmware versions 81.30 and 81.312.04/21/2006
KB48091Analog inputs configured as scalable, report a fixed value corresponding to 0 counts on serial B30003.04/21/2006
KB48172Opening a window with metafiles in ioDisplay or OptoDisplay Runtime may cause program termination 5.04/21/2006
KB49525The ioDisplay ‘Send Discrete’ dynamic attribute Bit field2.04/21/2006
KB50153Controller will not boot up properly after storing strategy to flash3.04/19/2006
KB50950SNAP-PAC-S1 may infrequently reset due to EMI1.04/18/2006
KB50817Unresponsive control engine due to certain error conditions1.04/18/2006
KB50707SNAP-PAC-R1 and possible corrupt ioControl persistent variables, counters, data logging values, and some variables2.04/12/2006
KB50148Deleting and undeleting an ioDisplay alarm may affect alarm points2.04/12/2006
KB49106Event log messages from Sync All Control Engines to PC’s Time/Date in ioDisplay2.04/12/2006
KB50414SNAP-PAC-S1 and some ioControl string commands2.04/11/2006
KB50302ioControl ‘IVAL Set Counter’ command and SNAP-PAC-S12.04/11/2006
KB50281Running maximum number of charts and Call Chart command on ioControl control engines2.04/11/2006
KB50292SNAP-PAC-S1 communicating to a SNAP-BRS I/O unit with ioControl2.04/11/2006
KB50208ioControl Move I/O Unit Table command with a serial B3000 and a SNAP‑PAC‑S12.04/11/2006
KB50070Improved handling of idle session timeouts by control engines3.04/11/2006
KB50017SNAP-PAC-S1 may enter reset state after storing a large strategy to flash2.04/10/2006
KB49800SNAP-PAC-S1 and –87 Open error message while communicating to serial B30002.04/10/2006
KB49934ioControl commands Set TPO Percent and Get I/O Unit as Binary Value with SNAP-PAC-S1 and serial I/O units2.04/10/2006
KB49853Numeric Table Element Bit Clear/Bit Set commands in ioControl with persistent tables2.04/10/2006
KB50036FTP communication handle support on SNAP-PAC-S12.04/10/2006
KB50049Control engines and data transfers using FTP communication handles2.04/10/2006
KB49881Extended IP timeout along with incoming IP session requests may reset the SNAP-LCE or SNAP-PAC-S12.04/10/2006
KB50998Infrequent possibility for SNAP-PAC-S1 and SNAP-PAC-R1 resets1.04/5/2006
KB50275An I/O unit configured in ioControl remains disabled until the control engine is power cycled2.04/4/2006
KB50636Inspecting PID loops on some SNAP-B3000-ENET I/O units with ioManager1.03/23/2006
KB50639ioManager and Current Value of Input and Current Value of Setpoint for PID Loops2.03/23/2006
KB50210Testing IP address assignment in ioManager2.03/16/2006
KB50024Send Value dynamic attribute with an offset may close ioDisplay Runtime2.03/16/2006
KB50296Serial B3000 with configured analog input module not on the mounting rack1.03/14/2006

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