If PM583-ETH gone into Stop Mode then what will be the result in communication through PDP22 connector.
Redundant PM587-ETH controller communicating with PM864 controller through profibus card CI854A. Initially, Line-A is active and communicating with PLC-A. If PLC-A gone into STOP Mode then what will be the result?. Is PDP22 connector show healthy connection & it still communicat with Line-A or PDP22 connector show healthy connection but communication switch to Line-B or PDP22 connector show error & communication will switch to Line-B.
I don't have hardware to perform this task. Please help me out. Sample Architecture copy is attached which will give you clear view.
Thank for giving time.
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On AC500-HA, Switch over will happen when CPU failed, lost power, STOP or CS31 network break.
In your design, both CPU will receive and send data to the Master AC800.
When CPU A Failed or Power lost, Master will detect comm lost at Line A, thus it switch to line B.
When CPU A Stop/CS31 network break, the PDP22 with H1 & H3 LED is still remain GREEN. CPU A will set all the output in PDP22 to '0', but it still receiving data from the ProfiBus master. Master will see the slave still healthy and no switching to line B.
To overcome this issue, you need embbeded the HA status for data transfer to the Master. You can get this HA status in the HA Library global variables.
Then the Master can decide to switch to LINE A or LINE B.