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Showing results 1 - 25 of 2152

knowledge base - KB87788

Published:

Opto 22 Knowledgebase

Control engine stops running

If you try to run a strategy that contains a SNAP I/O unit, with the primary address assigned, and the secondary address blank, the control engine stops running.

knowledge base - KB87769

Published:

Opto 22 Knowledgebase

The arbiter stops functioning after about 24 days

If you are running a system with the SNAP PAC Redundancy Option Kit, the arbiter will stop functioning after about 24 days. The arbiter's serial TX LEDs will stop flashing and Redundancy Manager'...more

knowledge base - KB87339

Published:

Opto 22 Knowledgebase

"Store To Flash" sometimes fails

When you try to save a large strategy to flash, the Inspecting window reports a communications error.

knowledge base - KB87691

Published:

Opto 22 Knowledgebase

PAC Display requests value even though Alarm Level is set up for Tag

Even though you've configured an alarm level by tag (Configure > Alarm Points > Setup by Current Value, and then select a tag on the Value tab), PAC Display Configurator prompts you for a...more

knowledge base - KB85574

Published:

Opto 22 Knowledgebase

-2104 Communication Error when communicating with a server that has a SAN security certificate

A -2104 error* happens when your PAC Control strategy communicates with (for example, by sending an HTTP Get command) a server that uses a Subject Alternative Name (SAN) security certificate.  * ...more

knowledge base - KB87643

Published:

Opto 22 Knowledgebase

Sending a file via FTP may cause PR1's controller to stop responding

If you're running a PAC Control strategy on a GRV-EPIC-PR1 and the strategy attempts to upload a file via FTP, the control engine component of the PR1 may lock up stop responding...more

knowledge base - KB86962

Published:

Opto 22 Knowledgebase

Strategy archive upload fails with error message: "The controller does not currently contain a strategy archive"

The Inspecting dialog box (in PAC Control Debug mode > Control Engine > Inspect; or in PAC Terminal > View > Status) may incorrectly indicate that the controller has an archive strategy...more

knowledge base - KB87587

Published:

Opto 22 Knowledgebase

PAC Display Configurator: Graphic image may be blank when window is restored

In PAC Display Configurator, if you minimize a window and then restore it (that is, make it bigger from its minimized size), graphic images may disappear from the window.  (The image file is not deleted, but the image may not appear in the window.)

knowledge base - KB87601

Published:

Opto 22 Knowledgebase

"Edit > Replace > Entire Project" may fail or cause PAC Display to crash when replacing "File Name From Strategy" tag

Replacing a tag name project-wide ( Edit > Replace > Entire Project) may fail without displaying an error message—or PAC Display Configurator may even crash—if the tag you're...more

knowledge base - KB87634

Published:

Opto 22 Knowledgebase

Controller may reset if a strategy with subroutines is running and you download changes made in Online mode

If a strategy includes a subroutine and you change the strategy while it's running in Online mode, the controller may reset when you switch to Debug mode and then click Yes to download the changes....more

knowledge base - KB87648

Published:

Opto 22 Knowledgebase

PAC Display: Dynamic Attributes window doesn't show the object's attributes

If you use the pop-up menu to display a graphical object's dynamic attributes (right-click > Dynamic Attributes >  View), the Dynamic Attributes window opens, but the window...more

knowledge base - KB87546

Published:

Opto 22 Knowledgebase

Sparkplug doesn't reconnect to MQTT broker

Ignition MQTT Engine SCADA tags or OPC-UA clients of Ignition MQTT Engine tags (for example, groov) are invalid or stale.

knowledge base - KB87536

Published:

Opto 22 Knowledgebase

Sparkplug: Erratic responsiveness

If your groov EPIC processor is communicating through MQTT with Sparkplug, you might observe erratice responsiveness.

knowledge base - KB87586

Published:

Opto 22 Knowledgebase

PAC Display Runtime displays TValue "Reference Type/Actual Type =" error messages and then crashes

In PAC Display Configurator, if you configure a graphical object using the the Quick Tag Entry feature and then delete a required field in the tag name, when the operator clicks the object in Runtime...more

knowledge base - KB87620

Published:

Opto 22 Knowledgebase

PAC Control: PID "Set" instructions write corrupted data

The PID "Set" instructions (in PAC Control) write corrupted data to the selected PID parameter when the PID is on a groov EPIC PR1 I/O Unit.

knowledge base - KB87632

Published:

Opto 22 Knowledgebase

GIF graphic is invisible in imported PAC Display window

If a windows you have imported into a PAC Display project (Window > Import Window) contains a GIF graphic, the graphic won't be visible in PAC Display Configurator. (It will, however, be...more

knowledge base - KB87589

Published:

Opto 22 Knowledgebase

PAC Display Runtime may crash when you use the Print feature

If a printer isn't configured for the computer you're using, PAC Display Runtime may crash when you select File > Print from the menu bar.