The SIEMENS digital input expansion module EM221 (Model 6ES7221-1BF22-0XA8) is designed for SIMATIC S7-200 series PLCs, providing eight 24 V DC digital input channels for signal acquisition and processing in industrial automation control systems.
Product Model: 6ES7221-1BF22-0XA8 Brand: SIEMENS Type: Digital Input Expansion Module Applicable CPU: S7-22X Series Input Points: 16 di Input Voltage: 24VDC Weight: 0.180 Kg Certification Standard: CE, RoHS SIEMENS 6ES7221-1BF22-0XA8 digital input expansion module is an important part of SIMATIC S7-200 series PLC, which can effectively enhance the data acquisition ability of PLC system.The module provides eight independent digital input channels, supports 24 V DC power supply, and is compatible with both source-type and drain-type signals, so it can be widely used in various automatic control systems. Its compact design and reliable performance make it ideal for industrial automation. Through accurate signal processing and stable performance, the module can significantly improve the reliability and response speed of the system.