Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Digital inputs | 2 |
| Input voltage | 24 V DC |
| Signal 0 | -30 to +5 V |
| Signal 1 | +11 to +30V |
| Input delay | Parameterizable: 0.1 / 0.5 / 3 / 15 ms |
| Encoder connection | 2-wire sensor |
| Encoder supply output current | 500 mA rated; 0 mA to 500 mA permissible range |
| Backplane bus input current | 10 mA max. at 3.3 V DC |
| Diagnostics | Output short-circuit to ground, hardware interrupt, SF group-error LED |
| Isolation | Inputs isolated from backplane bus; not isolated between channels |
Applications
- Digital signal acquisition: Acquires 24 V DC digital signals through 2 digital input channels and provides encoder-related diagnostics.
Key Features
- Digital input channels: 2 digital inputs for 24 V DC signals; input characteristic curve conforms to IEC 61131, type 1.
- Input signal ranges: Signal 0: -30 to +5 V. Signal 1: +11 to +30V; typical signal-1 input current is 8 mA.
- Parameterizable input delay: Input delay is parameterizable at 0.1 / 0.5 / 3 / 15 ms.
- Encoder diagnostics: Supports 2-wire sensors, diagnostics, parameterizable hardware interrupts, output short-circuit diagnosis to ground, and per-channel green digital-input status indicators.
- Supply and protection: Rated supply is 24 V DC from the power module, with reverse-polarity protection. Encoder output has electronic short-circuit protection and a rated current of 500 mA.
- Isolation and dimensions: Digital inputs are isolated from the backplane bus but not between channels. Dimensions are 15 mm wide, 81 mm high, and 52 mm deep.
Frequently Asked Questions
1. How many digital inputs does 6ES7131-4BB01-0AB0 have?
It has 2 digital inputs for 24 V DC signals.
2. What input voltage ranges are supported?
Signal 0 is -30 to +5 V, and signal 1 is +11 to +30V.
3. Can the input delay be parameterized?
Yes. The input delay can be parameterized to 0.1 / 0.5 / 3 / 15 ms.
4. What diagnostics does the module provide?
It provides encoder diagnostics, parameterizable hardware interrupts, output short-circuit diagnosis to ground, an SF group-error LED, and a green status indicator per digital-input channel.
5. What should be verified before requesting a quote?
Verify the 24 V DC supply from the power module, the 2-wire sensor connection, the 15 mm width, and the required input-delay setting. The product is a spare part and is supplied as 5 electronic modules per packing unit.
