Product Description
Key Features
- 32 isolated digital outputs: SM 422 has 32 isolated digital outputs with short-circuit protection and diagnostic indication.
- 24 V DC load voltage: Rated load voltage is 24 V DC, with a permissible range from 20.4 V to 28.8 V.
- Output performance: Rated output current for signal "1" is 0.5 A, with a typical switching frequency of up to 100 Hz for resistive loads.
- Diagnostics: Diagnostics, diagnostic alarms, hardware interrupts, wire-break and short-circuit detection are parameterizable or available as stated.
- SIMATIC S7-400 installation data: The module measures 25 mm wide, 290 mm high, and 210 mm deep, with an approximate weight of 600 g.
- Product lifecycle: Product lifecycle: Announcement of product phase-out.
Applications
- Digital input control: The outputs can control a digital input.
Technical Summary
| Product identity | Siemens 6ES7422-7BL00-0AB0; SIMATIC S7-400 SM 422 digital output module |
|---|---|
| Digital outputs | 32 isolated digital outputs |
| Rated load voltage | 24 V DC |
| Permissible load-voltage range | 20.4 V to 28.8 V DC |
| Rated output current | 0.5 A for signal "1" |
| Output delay | 0.15 ms |
| Short-circuit protection | Yes; clocked electronically |
| Switching frequency | 100 Hz maximum with resistive load; 2 Hz maximum with inductive load |
| Potential separation | Between channels in groups of 8, and between channels and backplane bus |
| Product lifecycle | Announcement of product phase-out |
Frequently Asked Questions
What order number should be confirmed for this module?
Confirm the complete order number 6ES7422-7BL00-0AB0 and the SIMATIC S7-400 SM 422 identity.
How many digital outputs does the module have?
It has 32 isolated digital outputs.
What load voltage and output current should be checked?
Check the rated load voltage of 24 V DC and the rated output current of 0.5 A for signal "1".
What diagnostic functions are available?
The module has diagnostics, diagnostic alarms, hardware interrupts, wire-break detection, short-circuit detection, and INTF, EXTF, and digital-output status LEDs as stated.
What lifecycle information is supplied?
The supplied lifecycle information is Announcement of product phase-out.
