Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Digital input count | 4 |
| Digital input voltage | 24 V DC |
| Signal 0 input voltage | -30 to +5 V |
| Signal 1 input voltage | +15 to +30 V |
| Input transition time | 2 ms minimum, 4.5 ms maximum; typically 3 ms |
| Connected sensor type | 2-wire sensor |
| Sensor quiescent current | 1.5 mA maximum |
| Backplane bus current | 10 mA maximum |
| Power loss | 0.7 W typical |
Key Features
- Digital inputs: 4 digital inputs with a DC input voltage rated value of 24 V.
- Input signal ranges: Signal 0: -30 to +5 V; signal 1: +15 to +30 V.
- Input timing: For standard inputs, 0 to 1 and 1 to 0 transitions are 2 ms minimum and 4.5 ms maximum; typically 3 ms.
- Sensor connection: Supports 2-wire sensors with a permissible quiescent current of 1.5 mA maximum.
- Supply and protection: Rated supply voltage is 24 V DC from the power module, with reverse polarity protection. Output current rated value is 500 mA.
- Installation dimensions: Width: 15 mm; height: 81 mm; depth: 52 mm; approximate weight: 35 g.
Frequently Asked Questions
1. How many digital inputs does the 6ES7131-4BD01-0AA0 have?
It has 4 digital inputs.
2. What input voltage does this module use?
The digital input voltage is DC, with a rated value of 24 V. Signal 0 is -30 to +5 V and signal 1 is +15 to +30 V.
3. What sensors can be connected?
It supports 2-wire sensors with a permissible quiescent current of 1.5 mA maximum.
4. Does the module provide input diagnostics?
It has no diagnostics function and no Group error SF (red) LED. A green digital input status indicator is provided per channel.
