Key Features
- SIMATIC S7-200 digital input module: Digital input EM 221 for the SIMATIC S7-200.
- 8 isolated digital inputs: Isolated 8 DI for digital input handling.
- 120/230 V AC input: Supports 120/230 V AC input voltage.
- Plug-in I/O terminals: Connection method: Plug-in I/O terminals.
- Optocoupler separation: Potential separation digital inputs: Yes; Optocoupler.
Technical Summary
| Product designation | SIMATIC S7-200, digital input EM 221 |
|---|---|
| Input configuration | isolated 8 DI |
| Input voltage type | AC |
| Rated value (AC) | 230 V; 220/230 V AC (47 Hz to 63 Hz) |
| Number of digital inputs | 8 |
| Input characteristic curve in accordance with IEC 61131, type 1 | Yes |
| Potential separation digital inputs | Yes; Optocoupler |
| Connection method | Plug-in I/O terminals |
| Power loss, typ. | 3 W |
Applications
- AC digital input acquisition: For connecting 8 AC digital input signals to the SIMATIC S7-200.
Frequently Asked Questions
What is Siemens 6ES7221-1EF22-0XA0?
It is a SIMATIC S7-200 digital input EM 221 module with isolated 8 DI and 120/230 V AC input.
How many digital inputs does 6ES7221-1EF22-0XA0 have?
It has 8 digital inputs.
What input voltage does the EM 221 module use?
The input voltage type is AC, with a rated value of 230 V; 220/230 V AC (47 Hz to 63 Hz).
How is the 6ES7221-1EF22-0XA0 connected and isolated?
It uses Plug-in I/O terminals and provides potential separation for the digital inputs by optocoupler.
