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Open connection is closed after Accept Incoming Communication command
Knowledge Base - KB90591 - Published:
If you pass a COM handle to the Accept Incoming Communication command and the COM handle already has an open connection, it should return a -47 (Already Open) error. However, with this issue, the COM...more
Controller unresponsive after attempting to communicate with unreachable Ethernet device
Knowledge Base - KB90305 - Published:
If your PAC Control strategy contains commands to open communication to an Ethernet device, and that Ethernet device is unreachable, then your controller may become unresponsive. This is more likely to...more
“Wrong Object Type” errors after initial synchronization of the backup redundant controller in SNAP-PAC-ROK system
Knowledge Base - KB89935 - Published:
After a SNAP-PAC S-series backup controller is initially synchronized with the active controller in a redundant system with the SNAP PAC Redundancy Option Kit (part number SNAP-PAC-ROK [obsolete]), you...more
“Send Communication Handle Command” returns incorrect or generic error codes when an FTP command fails in SoftPAC
Knowledge Base - KB90164 - Published:
If you have successfully opened an FTP session with a remote FTP server using a communication handle in your PAC Control strategy, you may receive incorrect or generic error codes from “Send...more
Some channels not set to zero on groov RIO EMU module
Knowledge Base - KB90881 - Published:
If you modify the default minimum threshold values for Minimum Voltage Threshold Ratio, Minimum Current Threshold, or Power Creep Adjustment (power threshold), if the threshold is not met for a phase...more
Generate N Pulses with N set to 0 starts a TPO when using groov I/O
Knowledge Base - KB90786 - Published:
In your PAC Control strategy, if 0 is specified for the Number of Pulses parameter of the Generate N Pulses command, then no TPO pulses should be started. However, groov I/O incorrectly treats a 0 as a signal to start TPO pulses.
PAC Control COM handle with ‘b’ to open a file fails with -6 error code
Knowledge Base - KB90874 - Published:
On your groov EPIC processor, if you have a PAC Control strategy that uses a communication handle (COM variable) to open a file that specifies b for the mode, the open fails with a -6 (Invalid Data Field) error.
User with Node-RED Dashboard UI permission prevents other users from making requests to PAC Control REST APIs
Knowledge Base - KB90739 - Published:
A message that normally indicates you are using an invalid API key can also indicate you have this issue: any users with the Node-RED Dashboard UI permission on your groov EPIC processor prevents other...more
After viewing the Data Service page on EPIC touchscreen or external display, groov Manage becomes unusable
Knowledge Base - KB90783 - Published:
If you view the Data Service Status page from either the touchscreen or an external HDMI display, the groov Manage pages look and behave strangely: the navigation is misplaced and pages start to merge together.
When downloading "Support Download" file, contents may be truncated
Knowledge Base - KB90833 - Published:
When you click Download from the Download Support Info page (from the groov Manage Home page, click Info and Help > Support Download), the contents from the generated may be truncated if there are...more
Status fields on groov Manage pages might display explosion/collision emoji characters
Knowledge Base - KB90837 - Published:
The Status field in several groov Manage pages typically displays text, like Enabled or Running. With this issue, a Status field may occasionally display collision/explosion emojis (💥).
Data Services OPC UA server may not report new values after PAC Control strategy download or I/O reconfiguration
Knowledge Base - KB90892 - Published:
After downloading a PAC Control strategy or reconfiguring I/O or modifying Scratchpad values, you may observe—in your OPC UA client—that data reported by the Data Services OPC UA server...more
Tags deleted/modified on groov EPIC/RIO continue to show valid value in OPC UA client
Knowledge Base - KB90875 - Published:
When you delete or modify tags, the Data Service's OPC UA server should report these tags as "bad" quality. However, with this issue, the Data Services OPC UA server may still report a valid value.
MQTT and OPC UA may display a variety of symptoms due to scan/communication timeout
Knowledge Base - KB90789 - Published:
You may have this issue if you observe the following behaviors: MQTT with Sparkplug payloads publish a Sparkplug Device Death followed by a Device Birth on the OptoMMP device; MQTT with String...more
OPC UA tag browsing may time out when opening folders with large number of tags
Knowledge Base - KB90870 - Published:
While browsing through tag folders from an OPC UA catalog, if you click on a folder with such a large number of tags (may be more than thousands) that a read timeout is exceeded and the browser may remain stuck, displaying Retrying on that folder.
New SSL port configuration method in R4.5a for groov Server for Windows
Knowledge Base - KB90708 - Published:
This is an informational KB article. groov Server for Windows is behaving correctly. If you configured groov Server for Windows to run on a custom SSL port, you may notice it running on the default port 443 after upgrading to R4.5a or higher.

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