Siemens 6ES7231-5PA30-0XB0 SIMATIC PLC Module

Siemens 6ES7231-5PA30-0XB0 is a single-channel RTD input extension for the SIMATIC S7-1200 PLC family, delivering one analog input (AI RTD) channel via the SB 1231RTD interface and supporting Pt100 and Pt1000 RTD sensors. With a compact footprint measuring 62 × 38 × 21 mm, the module is designed to fit within standard S7-1200 I/O configurations and connect to the controller’s backplane for reliable RTD signal acquisition. The device is powered from a 24 V DC supply, a common requirement for Siemens S7-1200 I/O modules, enabling straightforward integration into existing control panels. By providing a dedicated RTD input channel for Pt100 and Pt1000 sensors, the module supports precise resistance-based temperature measurements in automation and process-control applications. As part of the SIMATIC S7-1200 line, 6ES7231-5PA30-0XB0 provides a straightforward option to expand RTD sensing capability in industrial environments.