Product pictures Product Overview: ABB CM579-PNIO 1SAP170901R0101 Parameter Specification Manufacturer ABB Model CM579-PNIO Order Number 1SAP170901R0101 Product Type PROFINET IO Communication Module Application & Fault Scenarios Typical Uses: The CM579-PNIO is a PROFINET IO master communication module designed for the ABB AC500 PLC platform. It acts as the bridge between the AC500 controller and distributed PROFINET IO devices (drives, I/O modules, sensors, actuators),