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Installing firmware version 4.0.0 (or higher) with Ignition 8 fails at Decompression step
Knowledge Base - KB91192 - Published:
If you try to install version 4.0.0 (or higher) with Ignition 8 (for example, grv-epic-pr1-ignition8-4.0.0-b.106.field.bin) on a GRV-EPIC-PR1 that already has any version of Ignition, the installation...more
PAC Control REST API stops responding to requests, reports error -113 (Unknown Error)
Knowledge Base - KB91190 - Published:
After running without issue for a period of time, requests sent to the PAC Control REST API on a groov EPIC will stop working, returning error -113 (Unknown error has occurred). The control engine on the groov EPIC may stop responding.
During EPIC boot up, GRV-OVMAILP-8 voltage outputs may not be at zero volts
Knowledge Base - KB91176 - Published:
When a groov EPIC unit with a GRV-OVMAILP-8 module is booting up or when the module is hot swapped, any channels configured as a voltage output may output a non-zero voltage for a few seconds.
The user-supplied MQTT Sparkplug client ID is ignored
Knowledge Base - KB91163 - Published:
If you configured the MQTT Sparkplug client on your groov EPIC or RIO to connect to an MQTT broker with a specific MQTT client ID, the configured MQTT client ID is ignored and a randomly generated client ID is used.
Converting date/time from integer 32 table to NTP and then back may introduce 1 msec discrepancy
Knowledge Base - KB90990 - Published:
If you run a series of commands to convert date/time from integer 32 table to NTP time stamp and then back to integer 32 table, you may occasionally observe a 1 msec discrepancy introduced during the conversion.
Command to delete a file fails if file name contains ~ character
Knowledge Base - KB90968 - Published:
If your PAC Control strategy has a command to delete a file where the ~ character is in the file path (for example, SendCommunicationHandleCommand( chFile, "delete" ), where chfile was set to...more
Random OptoOPCServer errors and/or PAC Display Runtime crashes
Knowledge Base - KB91057 - Published:
You may experience random errors in OptoOPCServer and/or OPC clients. When using PAC Display Runtime, you may experience random errors in both programs, and PAC Display Runtime may crash with the error...more
Inaccurate status information in PAC Control for I/O units configured for redundant networking
Knowledge Base - KB91042 - Published:
When inspecting I/O units configured for redundant networks in Debug mode in PAC Control Professional, the Address section on the Information tab of the Inspect dialog box may not accurately show the current network status.
Some full-feature groov I/O modules may disrupt communication with groov I/O simple and serial modules
Knowledge Base - KB91168 - Published:
If an affected groov I/O module is inserted in one of the first five slots (positions 0 through 4) of the chassis, groov simple modules in positions 0 through 7 and groov serial modules (only supported...more
Validate Recipe File utility in PAC Display fails to report missing blank lines in recipe files
Knowledge Base - KB91164 - Published:
When using the Validate Recipe File utility in PAC Display, missing blank lines may not be reported, and you may incorrectly receive a Recipe File successfully parsed! message in the results.
Unable to configure PID output using a groov RIO or GRV-MM1001-10 channel configured as TPO
Knowledge Base - KB90973 - Published:
If a groov RIO or a multifunction mixed-signal (GRV-MM1001-10) channel is configured with the TPO feature, you may be unable to add it as an output of a PID loop in PAC Control.

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