MELSEC-Q Serial Communication Modules Discontinuation Notice

This technical bulletin announces the discontinuation of the MELSEC-Q series serial communication modules QJ71C24 and QJ71C24-R2 due to parts obsolescence, with order acceptance ending December 2003 and production ceasing January 2004. It also specifies the compatible replacement models (QJ71C24N and QJ71C24N-R2) that require no program or parameter modifications, and outlines a repair acceptance period through January 2011.