Conversion of K PLC application to a Q PLC

Introduction There are not many modular K series PLCs still in operation but it is still possible to convert the K series application to a Qn PLC as detailed below. It should be pointed out that availability of the items listed may mean that conversion is not...

Forcing I/O in Qn PLCs

Introduction The Q-Series PLC supports the facility to FORCE I/O but it is not always clear how to find out what has been forced or how to track forces. This document details the use of a feature called “Forced Input Output Registration/Cancellation”. Design...