Product details
The Siemens SIMATIC S7-1200 SM 1221 DI 8×24 V DC (6ES7221-1BF32-0XB0) is a plug-on signal module that expands the on-board I/O of any S7-1200 CPU. It provides 8 x 24 V DC inputs (sink/source), snaps onto the right of the CPU and is configured in TIA Portal – a fast, low-cost way to scale I/O without changing controller.
- Type: Digital input module
- I/O: 8 x 24 V DC inputs (sink/source)
- Plugs directly onto the S7-1200 CPU / signal-module bus
- Configured in TIA Portal – no separate addressing hardware
- Removable terminal block for fast wiring and module swap-out
- 35 mm DIN-rail / panel mounting
Technical specifications
| Order number | 6ES7221-1BF32-0XB0 |
|---|---|
| Module type | Digital input module |
| Compatible with | SIMATIC S7-1200 CPUs |
| Channels | 8 DI |
| Input voltage | 24 V DC |
| Wiring | Sink or source |
| Mounting | On S7-1200 CPU bus |
| Degree of protection | IP20 |
Add eight 24 V DC digital inputs to any S7-1200 CPU for extra sensors, switches and field signals.
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