Siemens 6ES7431-7QH00-0AB0 — now in phase-out and being discontinued. Supplied from remaining channel stock; full specifications, lifecycle and same-series options are below.
| Parameter | Value |
|---|---|
| Number of analog inputs | 16 |
| Current input range | Yes |
| Voltage input range | Yes |
| Resistance measuring ranges | Yes |
| RTD support (resistance thermometer) | Yes |
| Thermocouple support (types) | Yes |
| Input range: 0 to 20 mA | Yes |
| Input range: 4 to 20 mA | Yes |
| Input range: -10 to +10 V | Yes |
| Input range: -5 to +5 V | Yes |
| Input range: -80 to +80 mV | Yes |
| Input range: 0 to 600 Ohm | Yes |
| RTD type: Pt100 | Yes |
| RTD type: Pt200 | Yes |
| Current measurement: 2-wire transducer | Yes |
| Current measurement: 4-wire transducer | Yes |
| Input resistance (0 to 20 mA) | 50 Ω |
| Input resistance (4 to 20 mA) | 50 Ω |
| Input resistance (-10 to +10 V) | 1 MΩ |
| Permissible input voltage, max. (destruction limit) | 18 V; 18 V continuous, 75 V for 1 ms (mark to space ratio 1:20) |
| Permissible input current, max. (destruction limit) | 40 mA |
| Max. shielded signal cable length | 200 m; 50 m with thermocouples and input ranges ≤ 80 mV |
| Parameter | Value |
|---|---|
| Resolution (bit incl. sign), max. | 16 bit; 16 / 16 / 16 |
| Temperature measurement error (±) | 0.004 %/K |
| Voltage measurement error (±) | 0.15 %; ±0.15% at ±250 mV, ±500 mV, ±1 V, ±2.5 V, ±5 V, 1 V to 5 V, ±10 V; ±0.17% at ±80 mV; ±0.19% at ±50 mV; ±0.23% at ±25 mV |
| Current measurement error (±) | 0.15 %; at 0 to 20 mA, ±5 mA, ±10 mA, ±20 mA, 4 to 20 mA |
| Interference voltage suppression (at interference frequency) | 400 / 60 / 50 Hz |
| Parameter | Value |
|---|---|
| Diagnostic alarm | Yes; Parameterizable |
| Diagnostics function | Yes; Parameterizable |
| Limit value alarm | Yes; Parameterizable |
| Parameter | Value |
|---|---|
| Isolation: channels to backplane bus | Yes |
| Isolation: between channels | No |
| Isolation test voltage | 2 120 V DC between bus and L+/M; 2 120 V DC between bus and analog section; 500 V DC between bus and local ground; 500 V DC between analog section and L+/M; 2 120 V DC between analog section and local ground; 2 120 V DC between L+/M and local ground |
| Parameter | Value |
|---|---|
| Rated value (DC) | 24 V; Only required for supplying 2-wire transmitters |
| Power loss, typ. | 4.5 W |
| Reverse polarity protection | Yes |
| Parameter | Value |
|---|---|
| Width | 25 mm |
| Height | 290 mm |
| Depth | 210 mm |
| Weight, approx. | 500 g |
The 6ES7431-7QH00-0AB0 is a Siemens SM 431 analog input module with 16 inputs, accepting 18 V DC and drawing 4.5 W. It supports RTD types Ni100, Pt200, Pt500, and thermocouple types B, E, J, K, L, N, R, S, T, and U. RoHS compliance dates from 01-03-08.
Siemens has not published an official lifecycle status for the 6ES7431-7QH00-0AB0. No direct successor has been announced.
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