Siemens 6ES7231-5PF32-0XB0 Analog Input Module

Siemens 6ES7231-5PF32-0XB0 SIMATIC S7-1200 SM 1231 RTD is an eight‑channel analog input module for RTD sensors that integrates with SIMATIC S7-1200 PLCs as part of the SM 1231 RTD signal family. Each of the eight channels is an RTD input (8xAI RTD) with 16-bit resolution per channel, enabling precise temperature measurements across RTD sensors. The module is designed for use with S7‑1200 CPUs and has a typical power dissipation of about 1.5 W, reflecting its compact, low‑power I/O footprint. Typical applications include distributed temperature monitoring in manufacturing lines, process control, and HVAC systems where eight RTD inputs are needed in a single module.