OPC communication error
I have make my AC500 program on Automation Builder 2.1, I have ABB zenon scada 7.6 I had make previously the driver OPC 2.0 in zenon scada and it was communicating I also configure the Codesys OPC configurator and OPC configurator and both are set in tcp/ip mode with my plc ip and gateway are configured as local but suddenly the communication had gone and the opc driver in zenon editor and runtime are not communicating. Can anyone help me for what are the best driver for zenon scada with AC500(PM591) PLC and how to configure it properly to get uninterrupted communication. Regards,
Thanking you
Thanking you
Asked 1 year ago
Voted best answer
1
Hi ，
One of the reasons could be that the Symbol file has not been downloaded to the PLC after application download .
Go to Codesys > > Resources > > Target Settings > > General > > Select Download symbol file
Perform Symbol configuration and download application to PLC .
As a trouble shooting step ，verify browsing of variables from OPC server using any OPC test client.
Regards
Rahil
Answered 1 year ago
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