Hi,
I created a modbus device. I filled the adresses. I Can read and write to the adresses through OPC quick client :
But I keep getting the Uncertain_LastKnownValue overlay on the designer :
What can be the issue?
Hi Emile,
If you could provide some more details this will help the community better assist you;
What version of Ignition are you currently using?
Do you ever see values in the designer or are they always uncertain?
Do you see any errors in your logs regarding Modbus or the OPC server?
Have you tried restarting the OPC module?