I’m new to Ignition and trying to read tag data from an AB CompactLogix PLC.
The device is configured and connected, however when I browse tags from the OPC browser, add some into the Ignition Tag database, their OPC quality is Unknown and the values cannot be read.
If I try to write to the tag however, I can see that this is written into the PLC.
How can I diagnose this issue? Is there a diagnostics window somewhere for tag-related issues?
Thanks in advance.
More info on error when testing reading using the inbuilt OPC client in the gateway webpage:
Read completed. [Ignition OPC-UA Server]ns=1;s=[CompactLogix]Global.B01.Man
Quality: [Bad_CommunicationError] A low level communication error occurred.
Timestamp: 8/9/16 5:10:45 PM ACST