Why OPC DA services Fail
We are facing problems with OPC DA services failure in a site, this site has both Advant/Safeguard and AC800M nodes combined in a redundant client/server network. The OPC DA failure has affected the AC800M, the reasons for this failure is not known. We have separate redundant connectivity servers for AC800M and Advant/ Safeguard, unfortnately both the AC800M connectiivty servers OPC DA service failed and the AC800M connectivity servers had services running, since the system is under production we had to restart the servers to restore the services. Why this OPC DA services are failing? any ways to mitigate this?
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