Schneider BMXNOM0200H Serial Link Module Modicon X80 Dual Channel Communication Module for M340 PLC Product Overview The Schneider BMXNOM0200H is a professional serial link communication module developed for Modicon X80 series, perfectly tailored for seamless functional expansion of M340 PLC systems. As a core peripheral communication accessory for programmable logic controllers, it focuses on establishing stable serial data interaction channels for industrial control