Technical Summary
| Product type designation | SB 1221, DI 8x 24 V DC 100 kHz |
|---|---|
| Number of digital inputs | 8; sink / source |
| Input voltage, rated value (DC) | 24 V |
| Digital inputs, frequency | 100 kHz |
| Input current from backplane bus 5 V DC, typ. | 108 mA |
| Power loss, typ. | 2.4 W |
| STEP 7 TIA Portal configurable/integrated from version | V20 or higher |
| IP degree of protection | IP20 |
| Diagnostics function | Yes |
| Potential separation between the channels and backplane bus | Yes; 707 V DC (type test) |
Key Features
SB 1221 digital input module
Product type designation: SB 1221, DI 8x 24 V DC 100 kHz.
Product type designation: SB 1221, DI 8x 24 V DC 100 kHz.
8 digital inputs
Number of digital inputs: 8; sink / source.
Number of digital inputs: 8; sink / source.
24 V DC input rating
Input voltage rated value: 24 V DC.
Input voltage rated value: 24 V DC.
100 kHz input capability
Digital input specification includes 100 kHz.
Digital input specification includes 100 kHz.
Diagnostics indication
Diagnostics function: Yes; DIAG LED: Yes; for status of the inputs: Yes.
Diagnostics function: Yes; DIAG LED: Yes; for status of the inputs: Yes.
Applications
Digital signal input handling
For connecting 8x DI 24 V DC sink/source signals to a SIMATIC S7-1200 G2 system.
For connecting 8x DI 24 V DC sink/source signals to a SIMATIC S7-1200 G2 system.
Fast input signal processing
For input signal handling at 100 kHz.
For input signal handling at 100 kHz.
Frequently Asked Questions
What is the exact product type of 6ES7221-3BF50-0XB0?
It is SB 1221, DI 8x 24 V DC 100 kHz.
How many digital inputs does 6ES7221-3BF50-0XB0 have?
It has 8 digital inputs, with sink / source input capability.
What is the input voltage of this SB 1221 module?
The rated input voltage is 24 V DC.
What is the input frequency capability of 6ES7221-3BF50-0XB0?
The module is specified for 100 kHz.
Which engineering version is required for this module?
STEP 7 TIA Portal configurable/integrated from version V20 or higher.
