OPC Communication was disconnecting whenever i have downloading the controller.
Hi everyone,
I am facing the issue in one of my site,
We have installed 800xA in Engineering station and Compact HMI in Operator Station.
Controller used: PM865 - 6 No's in a redundancy fashion.SM811 for the individual controller.
Currently, the System is running in a healthy condition. All the programs are written in 800xA, whenever changing the program and downloading the program in the controller, I am facing the OPC communication failure(OPC Project file path mismatch). So it affects the plant operation.
Every time I need to check the OPC project file path and restart the Operator station , then only the OPC communication getting healthy. Meantime in Engineering Station OPC was healthy, there is no disturbance.
Due to operator station OPC issue, I couldn't able to give the command from Engineering station also.
I want to know the reason for OPC error and root cause for this issue.
Attachments for the better understanding of this issue.
I am facing the issue in one of my site,
We have installed 800xA in Engineering station and Compact HMI in Operator Station.
Controller used: PM865 - 6 No's in a redundancy fashion.SM811 for the individual controller.
Currently, the System is running in a healthy condition. All the programs are written in 800xA, whenever changing the program and downloading the program in the controller, I am facing the OPC communication failure(OPC Project file path mismatch). So it affects the plant operation.
Every time I need to check the OPC project file path and restart the Operator station , then only the OPC communication getting healthy. Meantime in Engineering Station OPC was healthy, there is no disturbance.
Due to operator station OPC issue, I couldn't able to give the command from Engineering station also.
I want to know the reason for OPC error and root cause for this issue.
Attachments for the better understanding of this issue.


Answers
hello manivasakam,
follow the step of the attached file to Configure Autoload OPC.
follow the step of the attached file to Configure Autoload OPC.
Do you have high cpu load?
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