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Siemens 6AG1231-5PA30-5XB0 — Analog Input Modules

Siemens 6AG1231-5PA30-5XB0 SIPLUS S7-1200 RTD Module, 1-Ch,

Name: 6AG1231-5PA30-5XB0
Brand: Siemens
SKU: 6AG1231-5PA30-5XB0
Availability: LimitedAvailability
Author: Storeroom Stan

MPN6AG1231-5PA30-5XB0

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Siemens SIPLUS S7-1200 analog input module, 1 channel resistance thermometer (Pt100/200/500/1000), 24 VDC, 0.5 W, -40 to 70 °C, plastic housing, diagnostics.

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Siemens 6AG1231-5PA30-5XB0 datasheet (PDF)

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

Specifications

6AG1231-5PA30-5XB0 — Inputs & Signal Ranges
Parameter	Value
Number of analog inputs	1; Resistance thermometer
Current input range	No
Voltage input range	Yes
Resistance measuring ranges	Yes; 150 Ω, 300 Ω, 600 Ω
RTD support (resistance thermometer)	Yes; Platinum (Pt)
Thermocouple support (types)	No
Input range: 0 to 600 Ohm	Yes
RTD type: Pt100	Yes
RTD type: Pt200	Yes

6AG1231-5PA30-5XB0 — Measurement Performance
Parameter	Value
Resolution (bit incl. sign), max.	15 bit; + sign
Measurement principle	integrating
Temperature measurement error (±)	25 °C ±0.1%, up to 55 °C ±0.25% total measurement range
Interference voltage suppression (at interference frequency)	85 dB at 10 / 50 / 60 / 400 Hz
Common-mode interference suppression, min.	120 dB

6AG1231-5PA30-5XB0 — Diagnostics & Monitoring
Parameter	Value
Wire-break detection	Yes
Diagnostic alarm	Yes
Diagnostics function	Yes; Can be read out

6AG1231-5PA30-5XB0 — Power
Parameter	Value
Rated value (DC)	24 V
Power loss, typ.	0.5 W

6AG1231-5PA30-5XB0 — Environmental
Parameter	Value
Operating temperature, vertical mounting, max.	50 °C; = Tmax
Operating temperature, vertical mounting, min.	-40 °C; = Tmin; Startup @ -25 °C

6AG1231-5PA30-5XB0 — Mechanical
Parameter	Value
Required front connector	Yes
Width	38 mm
Height	62 mm
Depth	21 mm
Weight, approx.	35 g

Product details

Single-channel RTD input for S7-1200 SIPLUS

The Siemens 6AG1231-5PA30-5XB0 is a SIPLUS analog input module for one resistance thermometer (platinum), with integrating measurement. Rated for 24 VDC supply at 0.5 W typical power loss and 5 mA current draw from the backplane. Operating ambient temperature spans -40 to 70 °C, with a vertical-installation derating to 50 °C — suitable for outdoor cabinets or unheated enclosures.

Integration notes

Single analog input channel for Pt resistance thermometers only: no voltage, current, or thermocouple capability. Alarms and diagnostic alarms are built in; wire-break detection is enabled. Designed for maintenance-oriented installations: diagnostics are readable via the S7-1200 backplane, and the module reports alarm on status of inputs.