800xA PLC Connect redundancy failure
We've upgraded an 800xA system from version 5.0.2 to 6.0.1. The system is connected to two Siemens PLCs S7400. We've installed Siemens OPC server on two connectivity servers (CS1, CS2) and then connect them to PLC servers installed on ACS1 and ACS2 (we've set up redundancy according to the manual. Unfortunately,failover does not work at all, although the connection to Siemens OPC server is ok (tested with Matrikon OPC client).
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W.r.t Redundancy pls make sure the below settings,
1. Service Group and redundant Service Providers in service structure as well as PLC Generic Control Network --> Generic Control Network Configuration
2. The Same Service Group shall be linked to PLC Generic Control Network --> (i) Adapter Data Source Definition & (ii) Source Definition
3. PLC Controller Type --> PLC Controller Configuration --> Protocol Settings: Redundant Server Nodes and OPC Server & especially Deviate in Redundant Server check box shall be marked
4. PLC Controller Type --> PLC Controller Configuration --> Redundant settings --> Condition for Slave Node to become master candidate: Try Selecting Configuration Validated.
Hope you might get some clue from this.