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Siemens 6AG1231-5PD32-2XB0 — Analog Input Modules

Siemens 6AG1231-5PD32-2XB0 Analog Input Module, 4 RTD

MPN6AG1231-5PD32-2XB0

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Siemens SIPLUS S7-1200 analog input module, 4 channels for resistance thermometers, 24 VDC, -40 to 70 °C, IP20, 45 x 100 x 75 mm.

$384.81 – $1,026.32Ref. price · indicative, final on quote

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Siemens 6AG1231-5PD32-2XB0 datasheet (PDF)

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

Specifications

6AG1231-5PD32-2XB0 — Inputs & Signal Ranges
Parameter	Value
Number of analog inputs	4; 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

6AG1231-5PD32-2XB0 — Measurement Performance
Parameter	Value
Resolution (bit incl. sign), max.	15 bit; + sign
Measurement principle	integrating
Temperature measurement error (±)	25 °C ±0.1% / ±0.3% total measurement range
Interference voltage suppression (at interference frequency)	85 dB at 50 / 60 / 400 Hz
Common-mode interference suppression, min.	120 dB

6AG1231-5PD32-2XB0 — Diagnostics & Monitoring
Parameter	Value
Wire-break detection	Yes
Diagnostic alarm	Yes
Diagnostics function	Yes; Can be read out
Supply voltage monitoring	Yes

6AG1231-5PD32-2XB0 — Power
Parameter	Value
Rated value (DC)	24 V
Power loss, typ.	1.5 W

6AG1231-5PD32-2XB0 — Mechanical
Parameter	Value
Required front connector	Yes
Width	45 mm
Height	100 mm
Depth	75 mm
Weight, approx.	220 g

Product details

4 RTD inputs, Pt100 to LG-Ni1000

The Siemens 6AG1231-5PD32-2XB0 is a 4-channel analog input module that reads resistance thermometers directly — Pt100, Ni1000, Cu10, and LG-Ni1000 among the supported types. No external signal conditioner needed; the integrating measurement principle handles the conversion onboard. Rated for 24 VDC supply with a typical power loss of 1.5 W. The module reports diagnostic alarms and wire-break status, which the PLC can read out for fault annunciation on the HMI or SCADA layer.

Current production, sourced per RFQ

The 45 mm width occupies one slot in the S7-1200 rack. Confirm the backplane current budget and the CPU firmware version for compatibility before specifying.

Frequently asked questions

Is 6AG1231-5PD32-2XB0 compatible with Pt100 RTD sensors?

Yes, Pt100 is explicitly listed among the supported resistance thermometer types. The module also supports Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, and LG-Ni1000.