Key Features
- 8 digital inputs: Number of digital inputs: 8; sink / source.
- 24 V DC input level: Input voltage rated value (DC): 24 V.
- 100 kHz inputs: Digital inputs are specified for 100 kHz.
- STEP 7 TIA Portal support: STEP 7 TIA Portal configurable/integrated from version V20 or higher.
- Diagnostics indication: Diagnostics function: Yes. DIAG LED: Yes, and status of the inputs: Yes.
- IP20 protection: IP degree of protection: IP20.
Applications
- 24 V DC digital signal acquisition: Reading 8 DI 24 V DC sink/source input signals.
- High-speed input capture: Processing input signals at up to 100 kHz.
- Interrupt and technological input handling: Using parameterizable interrupt inputs and technological functions on the digital inputs.
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, max. load voltage L+ current | 6 mA; per channel |
| Digital inputs, signal "1" | 15 V DC at 2.5 mA |
| Digital inputs, signal "0" | 5 V DC or 0.5 mA |
| Input current for signal "1", typ. | 6 mA |
| Input current for signal "0", max. (permissible quiescent current) | 0.5 mA |
| Power loss, typ. | 2.4 W |
| Input current from backplane bus 5 V DC, typ. | 108 mA |
Frequently Asked Questions
What is Siemens 6ES7221-3BF50-0XB0?
It is a SIMATIC S7-1200 G2 SB 1221 digital input module with 8 DI 24 V DC sink/source and 100 kHz inputs.
How many digital inputs does 6ES7221-3BF50-0XB0 provide?
It provides 8 digital inputs.
What input voltage and signal type does the module use?
The rated input voltage is 24 V DC, and the inputs are sink/source type.
Which engineering software version supports this module?
STEP 7 TIA Portal configurable/integrated from version V20 or higher.
What protection rating is specified for this module?
The IP degree of protection is IP20.
