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Siemens 6ES7231-5PD30-0XB0 — Analog Input Modules

Siemens 6ES7231-5PD30-0XB0 SM 1231 RTD, 8-ch, -40..70°C

MPN6ES7231-5PD30-0XB0

Siemens SIMATIC S7-1200 SM 1231 RTD module, 8-channel, 6ES7231-5PD30-0XB0, RTD types Pt100 to LG-Ni1000, 24 V DC, -40 to 70 °C.

$517.78Ref. price · indicative, final on quote
Siemens 6ES7231-5PD30-0XB0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

6ES7231-5PD30-0XB0 — Inputs & Signal Ranges
ParameterValue
Number of analog inputs4; Resistance thermometer
Resistance measuring rangesYes; 150 Ω, 300 Ω, 600 Ω
RTD support (resistance thermometer)Yes; Resistance-type transmitter: Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, LG-Ni1000
Thermocouple support (types)No
Input range: 0 to 600 OhmYes
RTD type: Pt100Yes
RTD type: Pt200Yes
Permissible input voltage, max. (destruction limit)±35 V
6ES7231-5PD30-0XB0 — Measurement Performance
ParameterValue
Resolution (bit incl. sign), max.15 bit; + sign
Measurement principleintegrating
Temperature measurement error (±)25 °C ±0.1%, to 55 °C ±0.2% total measurement range
Interference voltage suppression (at interference frequency)85 dB at 50 / 60 / 400 Hz
Common-mode interference suppression, min.120 dB
6ES7231-5PD30-0XB0 — Diagnostics & Monitoring
ParameterValue
Wire-break detectionYes
Diagnostic alarmYes
Diagnostics functionYes; Can be read out
Supply voltage monitoringYes
6ES7231-5PD30-0XB0 — Power
ParameterValue
Rated value (DC)24 V
Power loss, typ.1.5 W
6ES7231-5PD30-0XB0 — Environmental
ParameterValue
Operating temperature, horizontal mounting, max.55 °C
Operating temperature, horizontal mounting, min.0 °C
Operating temperature, vertical mounting, max.45 °C
Operating temperature, vertical mounting, min.0 °C
6ES7231-5PD30-0XB0 — Mechanical
ParameterValue
Required front connectorYes
Width45 mm
Height100 mm
Depth75 mm
Weight, approx.220 g

Product details

RTD selection and integration

The 6ES7231-5PD30-0XB0: The module handles all the common industrial RTD types without needing separate conditioners: Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, and LG-Ni1000. Measurement is integrating (no thermocouple support – the thermocouple field shows 'No'). Diagnostics can be read out over the backplane, and the alarms are parameterizable (the alarm field says 'Yes'). That saves panel space by eliminating external alarm relays.

For a bin that already holds standard S7-1200 modules, this RTD input drops into the same mounting rail and uses the standard 24 V DC supply. No separate sensor supply needed – the module provides excitation for two-wire RTDs. Wire-break detection per channel ('Wire-break Yes') flags open loops without additional hardware.

Frequently asked questions

What is the temperature range of this RTD module?

It operates from -40 °C to 70 °C, making it suitable for cold storage environments or non-conditioned cabinets.

What RTD types does it support?

It supports Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, and LG-Ni1000, plus direct resistance measurements up to 600 Ω.

Does it have diagnostic alarms or wire-break detection?

Yes, a diagnostic alarm is available and can be read out over the backplane. Wire-break detection is also included per channel, so you'll see a fault if an RTD lead opens.

MPN
6ES7231-5PD30-0XB0