SIEMENS SIMATIC S7-200 EM 221 DIGITAL INPUT MODULE
The Siemens EM 221 is a reliable and compact digital input module designed exclusively for SIMATIC S7-21X CPUs. With its fast response time and industrial-grade isolation, it is ideal for efficient signal acquisition in automation systems. This module is a trusted component in robust PLC control setups across various industries.
Manufacturer: Siemens
Family: SIMATIC S7-200
Type: Digital Input Module
Model: EM 221
MRN: 6ES7 221-1BF00-0XA0
E STAND: 02
Uses: For S7-21X CPUs only
Technical Information
- No. of Digital Inputs: 8
- Input Voltage: 24 V DC
- Response Time: 3.5 ms (max. 4.5 ms)
- Isolation: 500 V AC
- Power Dissipation: 2 W
- Dimensions (L x W x D): 90 x 80 x 62 mm












