Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Digital input channels | 32 |
| Rated input voltage | 24 V DC |
| Signal "0" input voltage | -30 V DC to +5 V DC |
| Signal "1" input voltage | 13 V DC to 30 V DC |
| Input characteristic | Type 1 according to IEC 61131 |
| Backplane bus input current | 20 mA max. at 5 V DC |
| Power loss | 6 W, typ. |
| Digital input status indication | Green LED |
| Backplane bus isolation | Yes |
Key Features
- Digital inputs: 32 isolated digital inputs with a 24 V DC rated input voltage.
- Input signal ranges: Signal "0": -30 V DC to +5 V DC; signal "1": 13 V DC to 30 V DC.
- Input characteristic: Type 1 input characteristic according to IEC 61131.
- Channel isolation: Digital inputs are not separated between channels; separation from the backplane bus is provided.
- Status indication: Green status indicators are provided for the digital inputs; the module has no diagnostics function.
- Product lifecycle: Announcement of product phase-out.
Frequently Asked Questions
1. How many digital inputs does the 6ES7421-1BL01-0AA0 have?
It has 32 digital inputs, with 32 inputs simultaneously controllable.
2. What input voltage signals does this module support?
The rated input voltage is 24 V DC. Signal "0" is -30 V DC to +5 V DC, and signal "1" is 13 V DC to 30 V DC.
3. Does the module provide channel isolation and diagnostics?
The digital inputs are not separated between channels, but they are separated from the backplane bus. The diagnostics function is no.
4. What cable lengths are supported?
The maximum cable length is 1 000 m for shielded cable and 600 m for unshielded cable.
