Protocol ‘COM1 - CS31 Bus’

See protocol description for the serial interfaces COM1 and COM2 Setting_COMx_CS31: Setting COMx - CS31 Setting COMx - CS31.

There are several options for processing the inputs and outputs of the CS31 bus modules:

• Direct processing in the user-defined program of the CM574-RS
• Transfer to the AC500 CPU via cyclic data exchange

Transfer to the AC500 CPU via acyclic data exchange is not recommended.

• Planning example for CM574-RS/CS31 bus
• Cyclic Data Exchange CM574-RS/CS31 Bus <-> \ AC500 CPU
  • Transfer of the inputs
  • Transfer of the outputs