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Hi after some assistance with an error on a Groov PR2 PLC.
We have a few different communications set up as shown below:
One Modbus TCP Slave Connection - ( Sending / Receiving Data from a PC )
Two Modbus TCP Master Connection - ( Reading Data from a UPS Panel and Reading Data Gas Chromatograph)
One Modbus RTU Slave Connection 485 - (Reading Data from a fire and gas panel)
One Modbus RTU Master Connection 485 - (Sending Data to a Telemetry Unit)
All Licenses have been installed as per OPTO22 suggestions of the order below:
Modbus TCP Master
Modbus TCP Slave
Modbus RTU Master
Modbus RTU Slave
When I check on License manager the RTU Master license seems to disappear on installing the RTU. (What ever reason I’ve been told this is “normal”). If I use Device License Read It will successfully read all the licenses correctly.
Now the issue is every 2 hours and between 4. For what ever reason the communications seems to end and lock up for about 20 seconds. During this time even if I was logged into the PLC it would kick me off and I’d have to re type the password to enter.
Most of the devices can handle this however the RTU flags up a communications failure at the SCADA and is raising alarms every 2 hours and 4 mins. We’ve had multiple people go through the code to check for anything obvious. Does anyone have any ideas?
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Hi after some assistance with an error on a Groov PR2 PLC.
We have a few different communications set up as shown below:
One Modbus TCP Slave Connection - ( Sending / Receiving Data from a PC )
Two Modbus TCP Master Connection - ( Reading Data from a UPS Panel and Reading Data Gas Chromatograph)
One Modbus RTU Slave Connection 485 - (Reading Data from a fire and gas panel)
One Modbus RTU Master Connection 485 - (Sending Data to a Telemetry Unit)
All Licenses have been installed as per OPTO22 suggestions of the order below:
Modbus TCP Master
Modbus TCP Slave
Modbus RTU Master
Modbus RTU Slave
When I check on License manager the RTU Master license seems to disappear on installing the RTU. (What ever reason I’ve been told this is “normal”). If I use Device License Read It will successfully read all the licenses correctly.
Now the issue is every 2 hours and between 4. For what ever reason the communications seems to end and lock up for about 20 seconds. During this time even if I was logged into the PLC it would kick me off and I’d have to re type the password to enter.
Most of the devices can handle this however the RTU flags up a communications failure at the SCADA and is raising alarms every 2 hours and 4 mins. We’ve had multiple people go through the code to check for anything obvious. Does anyone have any ideas?