General

The PROFINET® protocol is handled automatically by the PROFINET® Communication Module and the PLC operation system. When the Communication Module is initialized in the proper way and the user application is running, the Communication Module and the bus become active.

No function blocks are needed for the cyclic process data exchange. The access to the send and receive data to the according operands range can be performed in the direct way. The access takes place either via operands or symbolic variables. Special PROFINET® functions are realised by function blocks of the PROFINET® Library.

A detailed documentation to include an AC500 PROFINET® Communication Module (create a PROFINET® configuration and transmit this configuration to the CM579-PNIO) can be found in the Document “Example: PROFINET® Configuration”.