How to find the CPU master on the CS31 bus

I have implemented a ABB High Availability architecture using 2 PM 590 ETH and a CI590 bus module. I need to find out that at a given time which CPU is the master cpu on the CS31 bus. I need to find this out at start up and after changeover aswell.

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abidraza228 Rank: 3203

Asked 1 year ago

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In CI590 module Run led A and B indicates the status of the master CPU. For example if CPU A is master then Run A led will be on and viceversa. Refer the below screenshot.