--\nOur eBay Store\n\nPlease note: This item has a longer lead time for dispatch then normal as it's a non-stocked item that is ordered in, please see the estimated delivery date by eBay. We will of course ship the item sooner if possible.\n\nSiemens 6ES7241-1CH30-1XB0 CB 1241 Communication Module S7-1200\n\nProduct Details\n\nThe Siemens Universal Serial Interface (USS) Communication Module sends instructions to control the operation of motor drives which support the universal serial interface (USS) protocol. You can use the USS instructions to communicate with multiple drives through the RS485 connections to CM 1241 RS485 communication modules or a CB 1241 RS485 communication board. Up to three CM 1241 RS422/RS485 modules and one CB 1241 RS485 board can be installed in a S7-1200 CPU. Each RS485 port can operate up to sixteen drives.\n\n--For fast, high-performance serial data exchange via point-to-point connection \n--Simple parameterization with STEP 7 Basic \n--Plugged directly i;