Siemens 6ES72231PH320XB0 Simatic S7-1200 SM 1223 Digital Input/Output
SIEMENS SM 1223 DC/RLY [S7-1200] [6ES7223-1PH30-0XB0] DIGITAL I/O MODULE | eBay
SM 1223 16 RLY: S7-1200, digital output signal module at reichelt elektronik
Siemens Simatic 6ES7223-1QH32-0XB0 S7-1200 SM 1223 8 DI AC/8 DO RLY 8 DI 120/230 V AC 8 DO relay 2 A - PLCCable.com - Automation Supplies and PLC Tools