Analogue Module 4xRTD Inputs

The Siemens 6ES7231-5PD32-0XB0 is a SIMATIC S7-1200 analogue input module (SM 1231 RTD), designed for reliable and precise temperature measurement in industrial automation environments. This module provides four analogue inputs specifically for resistance thermometer (RTD) sensors, supporting a wide range of sensor types.

• Module Type: SM 1231 RTD, 4x16-bit analog input

• Supported Sensors: Resistance thermometers (Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, LG-Ni1000)

• Input Resistance: Varies by sensor (e.g., 10 Ω for Cu10, 100 Ω for Pt100/Ni100, 1000 Ω for Ni1000/LG-Ni1000)

• Power Supply: 24 V DC (typical current consumption: 40 mA from 24 V DC, 80 mA from backplane bus at 5 V DC)

• Power Loss: 1.5 W

• Protection Class: IP20

• Operating Temperature: -20°C to +60°C (horizontal), -20°C to +50°C (vertical)

• Humidity: Up to 95% (non-condensing)

• Dimensions: Module size not listed in most sources, but packaging dimensions: 9.0 x 11.2 x 6.0 cm (for shipping)

• Weight: 0.191 kg (net)

• Diagnostics: LED status and diagnostic alarms for supply voltage, wire-break, and maintenance

• Standards and Approvals: CE, RCM (C-TICK), FM, marine approvals