Technical Summary
| Product type designation | SM 1221, DI 16x 24 V DC |
|---|---|
| Number of digital inputs | 16 |
| Input voltage, rated value (DC) | 24 V |
| Digital inputs, in groups of | 4 |
| Input current from backplane bus 5 V DC, max. | 90 mA |
| Digital inputs from load voltage L+ (without load), max. | 4.1 mA; per channel |
| Power loss, typ. | 3.2 W |
| Input characteristic curve in accordance with IEC 61131, type 1 | Yes |
| Standard inputs, parameterizable | Yes; 0.2 ms, 0.4 ms, 0.8 ms, 1.6 ms, 3.2 ms, 6.4 ms and 12.8 ms, selectable in groups of four |
| Degree of protection | IP20 |
Applications
Digital input signal acquisition
For connecting 16 digital input signals to a SIMATIC S7-1200 G2 system.
24 V DC sink/source input handling
For handling 24 V DC sink/source input signals.
Key Features
SM 1221 digital input module
SIMATIC S7-1200 G2 SM 1221 digital input module for exact order-number identification.
16 digital inputs
Provides 16x DI for digital input handling.
24 V DC sink/source inputs
Inputs: 16x DI 24 V DC sink/source.
Active Product lifecycle
Product lifecycle: Active Product.
IP20 protection
Degree of protection: IP20.
Frequently Asked Questions
What is Siemens 6ES7221-1BH50-0XB0?
It is a SIMATIC S7-1200 G2 SM 1221 digital input module.
How many digital inputs does 6ES7221-1BH50-0XB0 have?
It has 16 digital inputs.
What is the input rating for 6ES7221-1BH50-0XB0?
The rated input voltage is 24 V DC.
Is 6ES7221-1BH50-0XB0 an Active Product?
Yes. Product lifecycle: Active Product.
