Siemens 6ES72221BH320XB0 Module Digital Output SIMATIC S7-1200 SM 1222 16 DO 24V DC: Amazon.com: Industrial & Scientific
6ES7212-1BE40-0XB0 SIMATIC S7-1200, CPU 1212C, Compact CPU PLC Modules 6ES7 212-1BE40-0XB0: Amazon.com: Industrial & Scientific
SIEMENS S7-1200, Signal Board: Amazon.com: Industrial & Scientific
SIEMENS 6ES72211BF320XB0 Digital Input Module, SM 1221, 8DI, 24VDC, S7-1200: Amazon.com: Industrial & Scientific
Amazon.com: Siemens 6ES7 212-1AE40-0XB0 SIMATIC S7-1200, CPU 1212C, COMPACT CPU, DC/DC/DC, ONBOARD I/O: 8 DI 24V DC; 6 DO 24 V DC; 2 AI 0-10V DC, POWER SUPPLY: DC 20.4-28.8 V DC,
Amazon.com: Siemens 6ES7 212-1AE40-0XB0 SIMATIC S7-1200, CPU 1212C, COMPACT CPU, DC/DC/DC, ONBOARD I/O: 8 DI 24V DC; 6 DO 24 V DC; 2 AI 0-10V DC, POWER SUPPLY: DC 20.4-28.8 V DC,