Siemens 6ES7231-7PB22-0XA0 is an analog input EM 231 module for SIMATIC S7-200, designed for S7-22X CPUs only. It provides two RTD input channels (2 AI) and accepts Pt100/200/500/1000/10000 and Ni100/120/1000 RTDs, including CU10 copper compensation, with sensor resistance options of 150/300/600 ohms and a 15‑bit signed conversion. Update time is 405 ms across all channels, increasing to 700 ms when using Pt10000 sensors. This EM 231 RTD input module is cataloged as a spare part for the S7-22X CPU family and is used to monitor precise temperature measurements in industrial applications.
