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Siemens 6ES7131-6BF00-2CA0 — PLC Communication Modules

Siemens 6ES7131-6BF00-2CA0 Digital Input Module, 24 V

MPN6ES7131-6BF00-2CA0
Active

Siemens 6ES7131-6BF00-2CA0, ET 200SP digital input module, 8 inputs, 24 V DC, P-reading, wire-break diagnostics, 8 µs jitter, BU type A0.

$131.42Ref. price · indicative, final on quote
Siemens 6ES7131-6BF00-2CA0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

6ES7131-6BF00-2CA0 — Identification
ParameterValue
Configurable from STEP 7 TIA Portal versionV13 SP1 / -
Hardware functional status (FS)From FS07
6ES7131-6BF00-2CA0 — Communication
ParameterValue
I&M data supportYes; I&M0 to I&M3
Diagnostics functionYes
Isochronous modeYes
6ES7131-6BF00-2CA0 — Electrical
ParameterValue
Rated value (DC)24 V
Permissible range, upper limit (DC)28.8 V
Permissible range, lower limit (DC)19.2 V
Power loss (typ.)1.5 W; 24 V, 8 inputs supplied via encoder supply
Reverse polarity protectionYes
Short-circuit protectionYes; per channel, electronic
Isolation test voltage707 V DC (type test)
6ES7131-6BF00-2CA0 — I/O
ParameterValue
Input data area1 byte; + 1 byte for QI information
6ES7131-6BF00-2CA0 — Environmental
ParameterValue
Operating temperature, horizontal install, min.-30 °C; < 0 °C as of FS07
Operating temperature, horizontal install, max.60 °C
Operating temperature, vertical install, max.50 °C
Operating temperature, vertical install, min.-30 °C; < 0 °C as of FS07
6ES7131-6BF00-2CA0 — Mechanical
ParameterValue
Width15 mm
Height73 mm
Depth58 mm

Product details

ET 200SP digital input module, 8 channels, 24 V DC

The Siemens 6ES7131-6BF00-2CA0 is an 8-channel digital input module for the ET 200SP distributed I/O system, operating at 24 V DC with P-reading (source input) and supporting 2-, 3-, and 4-wire sensors. It fits BU type A0 base units, which handle 1-wire through 4-wire connections depending on whether AUX terminals or a potential distributor module is used.

Wire-break diagnostics and input filtering

Wire-break diagnostics are configurable channel by channel, with an optional protective circuit using 25 kOhm to 45 kOhm resistors to suppress false diagnostics on simple encoder contacts. Input delay is parameterizable from 0.05 ms to 20 ms, and the module supports edge evaluation (rising, falling, or change) with a pulse extension down to 4 µs.

Frequently asked questions

Where can I buy 6ES7131-6BF00-2CA0 and get a price?

The 6ES7131-6BF00-2CA0 is sourced to order against an RFQ.

Does 6ES7131-6BF00-2CA0 support wire-break diagnostics?

Yes, wire-break diagnostics are supported channel by channel, with an optional protective circuit using 25 kOhm to 45 kOhm resistors to prevent false diagnostics on simple encoder contacts.

Is 6ES7131-6BF00-2CA0 compatible with ET 200SP base units?

Yes, it mounts on BU type A0 base units, which support 1-wire through 4-wire connections depending on whether AUX terminals or a potential distributor module is used.

What is the input delay setting for 6ES7131-6BF00-2CA0?

Input delay is parameterizable from 0.05 ms to 20 ms, with edge evaluation (rising, falling, or change) and pulse extension down to 4 µs.

MPN
6ES7131-6BF00-2CA0