Technical Summary
| Product type designation | SM 1221, DI 8×24 V DC |
|---|---|
| Based on | 6ES7221-1BF32-0XB0 |
| Rated voltage (DC) | 24 V |
| Input current from backplane bus 5 V DC, max. | 105 mA |
| Number of digital inputs | 8 |
| Digital inputs in groups of | 2 |
| Input characteristic curve in accordance with IEC 61131, type 1 | Yes |
| Input voltage for signal "0" | 5 V DC at 1 mA |
| Input voltage for signal "1" | 15 V DC at 2.5 mA |
| Ambient temperature during operation | -40 °C; = Tmin (incl. condensation/frost); start-up @ -25 °C |
| Degree of protection | IP20 |
Applications
Use for acquiring 24 V DC digital input signals through an 8-channel digital input module.
Key Features
SIPLUS S7-1200 SM 1221 8DI based on 6ES7221-1BF32-0XB0.
8 digital inputs, 24 V DC, sink/source.
Configured with conformal coating for use in extreme conditions.
-40…+70 °C, with start up -25 °C.
Active Product.
Frequently Asked Questions
What is Siemens 6AG1221-1BF32-2XB0?
It is a SIPLUS S7-1200 SM 1221 8DI digital input module based on 6ES7221-1BF32-0XB0.
What is the supply voltage for 6AG1221-1BF32-2XB0?
Rated voltage (DC): 24 V. Permissible range: 20.4 V to 28.8 V.
How many digital inputs does this module have?
It has 8 digital inputs, arranged in groups of 2.
What are the operating temperature details for this SIPLUS module?
Ambient temperature during operation is -40 °C to 70 °C, and start up is -25 °C.
