How to do commands to redundant power supply in m50 and what functions i can carry out.

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The PWS_CMD function block is used to control redundant power supplies in a Modicon M580 PAC main rack with an Ethernet backplane (local or remote rack, other connected Modicon M580 PAC).

PWS_CMD function block provides the following command:
1.Swap master and slave power supplies.
2.Clear some diagnostic counters.
3.Start a power supply auto-diagnostic.

The power supply command is built with the PWS_CMD_DDT DDT type.
The additional parameters EN and ENO may also be configured. For more details refer the attachment.

NOTE: Redundant power supplies function is available on CPUs with OS firmware V2.12 or later, and BMECRA31210 communication adapters with firmware V2.16 or later.