Modicon M580 Hardware, User Guide

This document provides detailed information about the Modicon M580 programmable automation controller (PAC). These topics are also discussed: • Installing a local backplane in the M580 controller system. • Configuring the M580 controller. • Ethernet I/O scanning of both RIO and DIO logic by the controller without affecting network determinism. In a modular PAC system, the controller controls and processes the application. The local backplane identifies the controller. In addition to the controller, the local backplane contains a power supply module and may contain communication processing modules and input/output (I/O) modules. The controller is in charge of: • configuring the modules and devices present in the controller configuration • processing the application • reading the inputs at the beginning of tasks and applying the outputs at the end of tasks • managing explicit and implicit communications. Modules may reside in the local backplane with the controller or they may be installed in remote drops at a distance from the local backplane. The controller has built-in capabilities to act as the RIO controller that manages communications between the controller and the Quantum and X80 EIO adapter modules that are installed in each remote drop. Devices can be connected to the PAC network as either DIO clouds or DIO sub-rings.