M258 PLCSystem Library Guide

M258 PLCSystem Library Guide

This document will acquaint you with the system functions and variables offered within the Modicon M258 Logic Controller. The M258 PLCSystem library contains functions and variables to get information and send commands to the controller system.

This document describes the data types functions and variables of the M258 PLCSystem library.

The following basic knowledge is required:

obasic information on functionality, structure and configuration of the M258

oprogramming in the FBD, LD, ST, IL or CFC language

oSystem Variables (global variables)