Original S7-300 Analog Input Sm 331 6es7331-7kf02-0ab0 Plc Module 6es7 331- 7kf02-0ab0 Isolated 8 Ai 6es73317kf020ab0 New - Motor Controller - AliExpress
PLC Hardware: Siemens 6ES7331-7KF02-0AB0 SIMATIC S7-300 SM 331 Module, 8/4-P
6ES7331-7KF02-0AB0 AI Wiring - 170233 - Industry Support Siemens