Key Features
- SIMATIC S7-400 digital output module: Digital output SM 422 for the SIMATIC S7-400 range.
- 16 isolated digital outputs: Provides 16 DO with potential separation between the channels and backplane bus.
- 120/230 V AC, 2 A output rating: Load voltage L1 rated value: 230 V; 120/230 V AC. Output current for signal "1" rated value: 2 A.
- Short-circuit protection: Short-circuit protection is Yes; clocked electronically.
- Parallel switching support: Parallel switching of two outputs is possible for redundant control of a load, only outputs with the same load voltage.
Technical Summary
| Product type | SIMATIC S7-400, digital output SM 422 |
|---|---|
| Order number | 6ES7422-1FH00-0AA0 |
| Digital outputs | 16 |
| Output current for signal "1" rated value | 2 A |
| Load voltage L1 rated value | 230 V; 120/230 V AC |
| Load voltage L1 permissible range | 79 V to 264 V AC |
| Permissible frequency range | 47 Hz to 63 Hz |
| Short-circuit protection | Yes; Clocked electronically |
| Response time | 100 ms |
| Potential separation | between the channels and backplane bus: Yes |
Applications
- Digital load switching: Switching 16 isolated AC digital outputs for load control.
- Redundant load control: Parallel switching of two outputs for redundant control of a load.
Frequently Asked Questions
What is the exact Siemens model number of this digital output module?
The exact model number is 6ES7422-1FH00-0AA0.
How many digital outputs does the SM 422 module provide?
It provides 16 digital outputs.
What load voltage and output current are listed for this module?
The listed load voltage is 120/230 V AC, and the output current for signal "1" rated value is 2 A.
Does the module have short-circuit protection and output isolation?
Yes. Short-circuit protection is Yes; Clocked electronically, and potential separation is provided between the channels and backplane bus.
