Siemens 6ES7 241-1CH32-0XB0 SIMATIC S7-1200, Communication Module cm 1241, RS422/485, 9 PIN SUB D (Female) Supports Message Based Freeport: Amazon.com: Industrial & Scientific
COMMUNICATION BETWEEN CM1241 RS232 AND BARCODE SCAN BALLUFF BVS - 270385 - Industry Support Siemens