CS31 Bus Extension with CM574-RS Coupler ModuleΒΆ

Apart from all functions explained in chapter Guidelines for Usage there are CM574 related function blocks which are called in the programs of this configuration.

CPU Program

Function block HA_CS31_DIAG_VIA_CM574 reads the extended diagnostics of CM574-RS CS31 Bus in high availability operation.

CM574 Program

Function block HA_CS31_DIAG_ON_CM574 sends CS31 Bus diagnostics information to host CPU and receives CS31 configuration information from host CPU.

Visualization

The following picture describes visualization of a running HA-CS31 system with the CS31 lines both on the PLC COM port and the CM574 COM ports.

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Visualization of AC500 High Availability System. Option 2.