MELSEC-QS to iQ-R Safety Controller Replacement Guide

This technical bulletin provides a comprehensive guide for replacing MELSEC-QS series safety programmable controller modules with MELSEC iQ-R series modules, including specifications comparisons, wiring changes, and program conversion procedures. It covers replacement of CPU modules, power supply modules, network modules (including CC-Link Safety to CC-Link IE TSN migration), remote I/O modules, base units, and project files, with detailed precautions and step-by-step instructions.