Third party OPC data only available on certain operator stations
We have configured third party OPC communication between two 800xa systems in different domains.
The OPC DA service provider is in service, Dcom settings are proper. I am able to get data in both matrikon and advdsopcclient .
But when I subscribe in control structure in any server the status shows Bad(communication fail).
Only in two out of 10operator stations I am able to subscribe and get good quality for the third party OPC data.
Has anyone faced this kind of problem?
Please suggest what can be done to rectify this?
Voted best answer
Bad (Comm fail) is very likely coming from the true source OPC server due to some configuration error. (i.e. not an error from the link connecting the two systems)
How did you configure the link? Generic OPC upload?
Check if OPC item ID in Control Connection aspect (created at upload of) is correct.
The recommended intra-system communication method is Multisystem Integration, not OPC.