The Siemens 6ES7131-6BF61-0AA0 is a 1-byte digital input module for the ET 200SP distributed I/O system. It accepts 24 V DC sourcing inputs and signals a '1' at -11 V to -30 V relative to L+, a '0' at 30 V to -5 V. The module is parameterizable, supports diagnostic alarms, and carries I&M data up to I&M3. It draws 1.5 W typ from the backplane and mounts on a BU type A0 base unit – no other base unit works.
Siemens 6ES7131-6BF61-0AA0 ET 200SP DI Module, 1-byte, 24 V
MPN6ES7131-6BF61-0AA0
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Siemens 6ES7131-6BF61-0AA0 ET 200SP digital input module, 1-byte, 24 V DC sourcing inputs, diagnostic alarm, parameterizable, for BU type A0 base units.
$38.10Ref. price · indicative, final on quote
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MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Inputs
| Parameter | Value |
|---|---|
| Number of digital inputs | 8 |
| 2-wire sensor support | Yes |
Electrical
| Parameter | Value |
|---|---|
| Rated value (DC) | 24 V |
| Input voltage at signal "1" | -11 V to -30 V (reference potential is L+) |
| Input voltage at signal "0" | 30 V to -5 V (reference potential is L+) |
| Permissible range, lower limit (DC) | 19.2 V |
| Permissible range, upper limit (DC) | 28.8 V |
| Input current at signal "1" (typ.) | 6 mA |
| Power loss (typ.) | 1.5 W |
| Permissible quiescent current, 2-wire sensor, max. | 1.5 mA |
| Cable length, unshielded, max. | 200 m |
| Cable length, shielded, max. | 1 000 m |
Timing
| Parameter | Value |
|---|---|
| Input delay 0 to 1, min. | 0.05 ms |
| Input delay 1 to 0, min. | 0.05 ms |
| Input delay 0 to 1, max. | 20 ms |
| Input delay 1 to 0, max. | 20 ms |
| Input delay, parameterizable values | Yes |
Environmental
| Parameter | Value |
|---|---|
| Max. ambient temperature, horizontal installation | 60 °C |
Diagnostics & Isolation
| Parameter | Value |
|---|---|
| Short-circuit protection | No |
| Diagnostics function | Yes |
| Short-circuit (NAMUR sensor) | No |
| Diagnostic alarm | Yes |
| Isolation between channels | No |
| Isolation between channels and backplane bus | Yes |
| Isolation test voltage | 707 V DC (type test) |
Mechanical
| Parameter | Value |
|---|---|
| Depth | 58 mm |
| Height | 73 mm |
| Width | 15 mm |
Product details
Frequently asked questions
What base unit does this module require?
It requires a BU type A0 base unit. No other base unit variant is compatible.
Does the module support diagnostic alarms?
Yes, diagnostic alarms are supported. The module also carries I&M data for identification and maintenance.
MPN
6ES7131-6BF61-0AA0