Hello all,
I am a new user working on a project for a customer. We are using KEPServerEX 6.17.240.0 on 2 redundant VMs to connect to several Siemens S7-400 and S7-1500 PLCs via Siemens TCP/IP and OPC UA protocol respectively.
After Reinitializing, I get the following warnings for each OPC UA connections:
Date Time Level Source Event
05/09/2025 07:32:22 Warning OPC UA Client CHANNEL.DEVICE | The Publishing Interval for device has been set by the server. | New interval = 1000 (milliseconds), Requested interval = 500 (milliseconds).
The publishing interval is set to 500ms for all devices on the KEPServer. I was shown by one of the PLC programmers that the PLC's intervals ("sampling" and "sending" intervals) are also 500ms. Most of the connected PLCs are programmed by different people so I find it unlikely that all of them set the interval to 1000 instead of 500, so I suspect the error on my side. However, I couldn't find anything that I could have missed. Does anyone have an idea what could overwrite my 500ms interval?
Am I correct in assuming that the PLC's OPC server is meant by "server" in the warning message?
It might be worth noting that I have frequent "Tag write failed" warnings (Status Code 0X800A0000). I am not sure if that could play a part in the issue with the intervals.
Thanks in advance to anyone reading!
