In SV5.0 sp2 rev C, PLC connect integrated with Honeywell opc for some display values going bad randomly
In one of our 5.0 sp2 rev C system PLC via used to is used to integrate plantguard and Honeywell opc server here all data related to plant guard updating properly in graphic displays where in for Honeywell opc data for some signals in graphic displays going bad for few min to hours and then it will be normal automatically.
1.Checked in Honeywell opc server for data quality and value here everything good and working normal.
2.on object dialog for those signals showing comm error in 800xa.
3.on forcing manually data again for bad signals from Honeywell opc server then data starts fetching again.
4.on subscribing live data for those bad signals except value(bad/comm error) all properties showing OPC good.
Can anyone faced this strange problem.
I have faced this problem twice with integration of my Safety PLC with a GE system.
I am not sure about the root cause for breakage, but I solved by below method:
1) Installing Matrkion OPC Tunneller in both the system and inside searched & connect for the opposite system.
2) Created a local window .exe application in GE system,which always PING my Main ABB Controller IP there in background(which ensures healthy data packet send& recieve)