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Siemens 6ES7231-4HD30-0XB0 — Analog Input Modules

Siemens 6ES7231-4HD30-0XB0 AI Module, 4-Ch, -40..70°C

MPN6ES7231-4HD30-0XB0

Siemens SIMATIC S7-1200, analog input module SM 1231, 4 AI, current/voltage differential, 24 V DC, 1.5 W, -40..70 °C, IP20, 45x100x75 mm.

$160.02 – $282.00Ref. price · indicative, final on quote

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Siemens 6ES7231-4HD30-0XB0 datasheet (PDF)

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

Specifications

6ES7231-4HD30-0XB0 — Inputs & Signal Ranges
Parameter	Value
Number of analog inputs	4; Current or voltage differential inputs
Current input range	Yes; 0 to 20 mA
Voltage input range	Yes; ±10V, ±5V, ±2.5V
Resistance measuring ranges	No
RTD support (resistance thermometer)	No
Thermocouple support (types)	No
Input range: 0 to 20 mA	Yes
Input range: -10 to +10 V	Yes
Input range: -5 to +5 V	Yes
Input resistance (0 to 20 mA)	280 Ω
Input resistance (-10 to +10 V)	≥9 MOhm
Permissible input voltage, max. (destruction limit)	35 V
Permissible input current, max. (destruction limit)	40 mA

6ES7231-4HD30-0XB0 — Measurement Performance
Parameter	Value
Resolution (bit incl. sign), max.	12 bit; + sign
Temperature measurement error (±)	25 °C ±0.1%, to 55 °C ±0.2% total measurement range
Voltage measurement error (±)	0.1 %
Current measurement error (±)	0.1 %
Interference voltage suppression (at interference frequency)	40 dB, DC to 60 V for interference frequency 50 / 60 Hz
Common-mode voltage, max.	12 V

6ES7231-4HD30-0XB0 — Diagnostics & Monitoring
Parameter	Value
Wire-break detection	No
Diagnostic alarm	Yes
Diagnostics function	Yes
Supply voltage monitoring	Yes

6ES7231-4HD30-0XB0 — Power
Parameter	Value
Rated value (DC)	24 V
Power loss, typ.	1.5 W

6ES7231-4HD30-0XB0 — Environmental
Parameter	Value
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

6ES7231-4HD30-0XB0 — Mechanical
Parameter	Value
Required front connector	Yes
Width	45 mm
Height	100 mm
Depth	75 mm
Weight, approx.	180 g

Product details

The 6ES7231-4HD30-0XB0: Four-channel analog input module for the S7-1200 backplane, accepting current (0 to 20 mA) and voltage (±10 V, ±5 V, ±2.5 V) signals as differential inputs. Parameterizable alarms, diagnostics and wire-break detection per channel. Draws 1.5 W from the 24 V DC backplane bus.

Integration notes

Mounts on the standard S7-1200 DIN rail (45 mm width). Power and communication are supplied via the backplane bus; no separate auxiliary supply needed. The 1.5 W load leaves headroom for additional modules on the rail. Diagnostic alarms can be parameterized per channel for wire-break, out-of-range, or maintenance requests.