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Showing results 26 - 50 of 2152

knowledge base - KB87571

Published:

Opto 22 Knowledgebase

PAC Terminal shows wrong system type for redundant networks and redundant controllers

Even if a control engine has been configured as a redundant controller or part of a redundant network, PAC Terminal incorrectly displays "Standard" in the System Type column. Also, Address...more

knowledge base - KB87567

Published:

Opto 22 Knowledgebase

PAC Control displays "Compile Error" and "Invalid IP address" when a strategy includes an E1, E2, or G4EB2 brain board

If your PAC Control R10.0a or R10.0b strategy contains an E1, E2, or G4EB2 brain board, PAC Control displays an error message when you try to either compile or download the strategy.

knowledge base - KB87518

Published:

Opto 22 Knowledgebase

groov digital input module may return a zero

When you read from digital input channel configured for On-pulse, Off-pulse, or one shot period measurement, you might get a zero value.

knowledge base - KB87507

Published:

Opto 22 Knowledgebase

Can't access USB-to-serial converter from Node-RED

If you have Node-RED logic that attempts to access a serial port on a USB-to-Serial converter (for example, /dev/ttySer0), it will fail and display a message about "permission denied".

knowledge base - KB87503

Published:

Opto 22 Knowledgebase

System Status Page shows error message when multiple browser tabs or windows try to access it

When several browser tabs or windows are open and accessing the System Status page in groov Manage (including the processor's touchscreen), you might see a message box with the word "Error" in it.

knowledge base - KB87453

Published:

Opto 22 Knowledgebase

Slow firewall port validation with large port range

On the Firewall page (Home > Security > Firewall), if you add a rule with a large port range (for example, 39999:50001) and then click "Save," groov Manage will appear to go offline for several minutes.

knowledge base - KB87568

Published:

Opto 22 Knowledgebase

Unable to switch control engines in PAC Display Runtime

Trying to switch control engines in Runtime (Window > Switch Control Engines) may fail. Instead, the tag values may appear as  # signs or Last Known Value errors.

knowledge base - KB86395

Published:

Opto 22 Knowledgebase

PAC Control: Controller may reset (Timeout error) when OptoScript block contains //*

PAC Control may fail to identify the single comment characters ( // ) in an OptoScript block, if you put them at the end of a line and you don't follow them with a space. When this...more

knowledge base - KB87560

Published:

Opto 22 Knowledgebase

Over-sized fonts, parts of text missing, blank dialog boxes, or missing dialog elements

Dialog boxes, menus, and window elements (like buttons) might appear strange or distorted. This issue affects the following: Windows 7 or Windows 10 High-resolution displays or low-resolution...more

knowledge base - KB87558

Published:

Opto 22 Knowledgebase

PAC Control won't close Edit I/O Unit dialog box; "The address is being used by another I/O unit"

When you click OK after editing an I/O unit (Configure > I/O > Modify), instead of closing the dialog box, PAC Control R10.0a may display a message that reads, "The address is being used by...more

knowledge base - KB87513

Published:

Opto 22 Knowledgebase

When the control engine is a groov EPIC PR1, PAC Control may stop responding if you click the Info, Warning, or Error button

Note: See related KnowledgeBase article, KB87514, groov EPIC PR1 host port may stop responding. If your strategy's control engine is a groov EPIC PR1, PAC Control may stop responding if you...more

knowledge base - KB87547

Published:

Opto 22 Knowledgebase

Editing an OptoScript block containing a long string literal without spaces may cause PAC Control to crash

PAC Control may crash when you try to edit an OptoScript block containing a string literal that is longer than 63 characters and has no spaces. This may happen regardless of whether the OptoScript block is a chart or a subroutine.

knowledge base - KB87539

Published:

Opto 22 Knowledgebase

After strategy upgrade, PAC Control numeric tables don't properly initialize on strategy run

If an Integer 32 table, Integer 64 table, or a Float table was configured in PAC Control R9.6 to be initialized on strategy run to a value other than zero, the table will not be initialized to that...more

knowledge base - KB87543

Published:

Opto 22 Knowledgebase

PAC Display Runtime can send an out-of-range value to a float variable after a period or minus sign is entered

When a graphic object is configured to update a float variable using the Send Value dynamic attribute and the Prompt for Data, Min Value, and Max Value options, PAC Display Runtime will...more

knowledge base - KB87533

Published:

Opto 22 Knowledgebase

PAC Display Configurator may close when adding an "Execute Menu Item" dynamic attribute using the old-style dialog boxes

When the "Use Older Dynamic Attribute Dialogs" feature is enabled (File > Configurator Options), PAC Display Configurator may close without warning if you try to add the operator-driven Execute Menu Item dynamic attribute.

knowledge base - KB87514

Published:

Opto 22 Knowledgebase

groov EPIC PR1 host port may stop responding

Note: See related KnowledgeBase article, KB87513, "When the control engine is a groov EPIC PR1, PAC Control may stop responding if you click the Info, Warning, or Error button." When a...more

knowledge base - KB87534

Published:

Opto 22 Knowledgebase

SNAP PAC Driver Module never connects; Ignition can't read strategy tags

When you use the products and versions listed in the Applies To section above, Ignition and Ignition Edge fail to connect to the SNAP PAC Driver Module, and the module's status never changes from...more

knowledge base - KB87527

Published:

Opto 22 Knowledgebase

PAC Display: Can't configure dynamic attributes for analog input points

When configuring dynamic attributes in PAC Display Configurator, if you first configure an Operator-Driven attribute, the Value Tag Selection dialog box fails to display the Analog Input Point...more