Siemens 6ES7231-5PD32-0XB0 Programmable Logic Controller Module

Siemens 6ES7231-5PD32-0XB0 is a SIMATIC S7-1200 SM 1231 RTD signal module that provides four analog RTD inputs for temperature sensing in an S7-1200 system. The module supports a 24 V DC supply, an IP20 protection rating, and delivers 4x RTD inputs with 16-bit resolution (AI 4x16 bit RTD), enabling precise measurements from RTD sensors. Typical electrical characteristics include backplane current around 40 mA and a typ power loss of 1.5 W, making it a compact, plug‑in extension for the S7-1200 family within the SM 1231 RTD signal module lineup. The listing notes a 2-year warranty, and it is commonly used for industrial temperature monitoring, process control, and equipment health telemetry in automation environments.