Ordering this product
Check the full part number and required version against your equipment. Add any electrical or connection requirements when contacting us.
Product information
SIMATIC S7-1200 Digital input SB 1221 (Part number 6ES7221-3BD30-0XB0) provides 4 DI with 24 V DC sourcing input and a 200 kHz input frequency.
Detailed Parameters
Product family:SIMATIC S7-1200
Module type:Digital input SB 1221
Input type:Sourcing input
Number of digital inputs (DI):4
Input voltage:24 V DC
Max. input frequency:200 kHz
Engineering Context
The Digital input SB 1221 module in the SIMATIC S7-1200 system provides 4 DI signals for sourcing input application.
Use the module for 24 V DC digital input signals with a specified 200 kHz input frequency.
FAQ
1. What is the module type for part number 6ES7221-3BD30-0XB0?
It is SIMATIC S7-1200 Digital input SB 1221.
2. How many digital inputs (DI) does the SB 1221 module provide?
It provides 4 DI.
3. What input voltage and input type are specified for the module?
The module is specified for 24 V DC and sourcing input.
4. What is the specified input frequency range for the module?
The specified input frequency is 200 kHz.
