natcheappan
Member
Hi Friends,
In our industry we are using nearly 20 Software redundancy Siemens PLCs. Everytime when there is a switchover between Master and Standby PLC we are facing Problems.
For e.g if there is a DP Slave failiure, Master to Standby Changeover should occur.Instead of this there is a toggling between Master and Standby for sometime. as a troublesooting step we will put the master to Stop mode. then only the system works with standby CPU. can anybody clear me this question
In our industry we are using nearly 20 Software redundancy Siemens PLCs. Everytime when there is a switchover between Master and Standby PLC we are facing Problems.
For e.g if there is a DP Slave failiure, Master to Standby Changeover should occur.Instead of this there is a toggling between Master and Standby for sometime. as a troublesooting step we will put the master to Stop mode. then only the system works with standby CPU. can anybody clear me this question