Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Module type | SIMATIC S7-400 SM 422 digital output module |
| Digital outputs | 32 |
| Rated load voltage | 24 V |
| Permissible load-voltage range | 20.4 V to 28.8 V |
| Rated output current for signal "1" | 0.5 A |
| Output current range for signal "1" | 5 mA to 0.6 A |
| Output delay with resistive load | 1 ms from "0" to "1"; 1 ms from "1" to "0" |
| Short-circuit protection | Yes; Clocked electronically |
| Switching frequency with resistive load | 100 Hz, max. |
| Switching frequency with inductive load | 0.5 Hz, max. |
Applications
- Digital output control: The module controls digital outputs and can control a digital input.
- Redundant load control: Two outputs can be switched in parallel for redundant control of a load, using only outputs of the same group.
Key Features
- 32 digital outputs: The SM 422 module has 32 digital outputs with a 0.5 A rated output current for signal "1".
- 24 V DC load supply: Rated load voltage is 24 V, with a permissible range from 20.4 V to 28.8 V.
- Electronic short-circuit protection: The digital outputs have electronically clocked short-circuit protection.
- Output switching performance: Switching frequency is up to 100 Hz with a resistive load and up to 0.5 Hz with an inductive load.
- Isolation and cable length: The digital outputs are separated from the backplane bus; maximum cable length is 1 000 m shielded or 600 m unshielded.
- Module dimensions and weight: Dimensions are 25 mm wide, 290 mm high and 210 mm deep; weight is approximately 600 g.
Frequently Asked Questions
1. How many digital outputs does 6ES7422-1BL00-0AA0 have?
It has 32 digital outputs.
2. What load voltage does this SM 422 module use?
The rated load voltage is 24 V, with a permissible range from 20.4 V to 28.8 V.
3. What output current is available for signal "1"?
The rated output current is 0.5 A, with a permissible range from 5 mA to 0.6 A.
4. Does the module provide short-circuit protection?
Yes. The digital outputs have electronically clocked short-circuit protection.
5. What cable lengths are supported?
The maximum cable length is 1 000 m for shielded cable and 600 m for unshielded cable.
