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Siemens 6ES7231-5PF32-0XB0 — Analog Input Modules

Siemens 6ES7231-5PF32-0XB0 RTD Module, 70°C, -40°C

MPN6ES7231-5PF32-0XB0

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Siemens SIMATIC S7-1200, analog input module SM 1231 RTD, 8-channel, -40 to 70 °C, width 70 mm, Pt100/Ni1000/Cu10/resistance, diagnostic alarm, wire-break detection, cULus/CE/UL/CSA/FM/KC/Marine approvals.

$375.92 – $1,008.63Ref. price · indicative, final on quote

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Siemens 6ES7231-5PF32-0XB0 datasheet (PDF)

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

6ES7231-5PF32-0XB0 — Inputs & Signal Ranges
Parameter	Value
Number of analog inputs	8; Resistance thermometer
Current input range	No
Voltage input range	No
Resistance measuring ranges	Yes; 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 Ohm	Yes
RTD type: Pt100	Yes
RTD type: Pt200	Yes
Permissible input voltage, max. (destruction limit)	±35 V

6ES7231-5PF32-0XB0 — Measurement Performance
Parameter	Value
Resolution (bit incl. sign), max.	15 bit; + sign
Measurement principle	integrating
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

6ES7231-5PF32-0XB0 — Diagnostics & Monitoring
Parameter	Value
Wire-break detection	Yes
Diagnostic alarm	Yes
Diagnostics function	Yes; Can be read out
Supply voltage monitoring	Yes

6ES7231-5PF32-0XB0 — Power
Parameter	Value
Rated value (DC)	24 V
Power loss, typ.	1.5 W

6ES7231-5PF32-0XB0 — Environmental
Parameter	Value
Operating temperature, horizontal mounting, max.	60 °C
Operating temperature, horizontal mounting, min.	-20 °C
Operating temperature, vertical mounting, max.	50 °C
Operating temperature, vertical mounting, min.	-20 °C

6ES7231-5PF32-0XB0 — Mechanical
Parameter	Value
Required front connector	Yes
Width	70 mm
Height	100 mm
Depth	75 mm
Weight, approx.	220 g

Product details

Field integration notes

The 6ES7231-5PF32-0XB0: RTD and resistance module for the S7-1200 backplane, supporting Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, LG-Ni1000, Cu10, and three resistance ranges (150, 300, 600 Ω). The diagnostic alarm and wire-break detection feed back to the CPU early, so you see a sensor fault before the loop goes dead. Operates from -40 °C to 70 °C ambient with atmospheric pressure from 795 to 1 080 hPa. Approved under cULus, UL, CSA, FM, KC, CE, and Marine, covering the common global panel certifications in one module. Mounts on the standard S7-1200 DIN rail; 70 mm width leaves room for a CPU and two more signal modules in a typical rack.