Siemens 6ES7222-1BF30-0XB0 Digital Input Module

Siemens 6ES7222-1BF30-0XB0 is an 8-channel digital output module (SM 1222) for the SIMATIC S7-1200 PLC family. It provides eight 24 V DC transistor outputs, configured as source-type outputs, capable of switching loads up to 0.5 A per channel. This module extends a S7-1200 controller’s digital output capacity by directly driving actuators such as relay coils, contactors, or other 24 V DC loads from the controller’s program logic. Designed for plug-in integration with the SIMATIC SM I/O ecosystem, it supports straightforward wiring and reliable isolation between the controller and the controlled devices. Typical applications include automated line control, signaling, and compact control panels where multiple devices must be switched from a single S7-1200 CPU. The 6ES7222-1BF30-0XB0 designation identifies an 8‑output 24 V DC digital output module that adheres to Siemens’ modular I/O architecture, enabling scalable expansion of digital outputs for industrial automation tasks powered by the S7-1200 family. This exact variant is commonly used when eight discrete, actively driven 24 V loads need to be controlled directly by a SIMATIC S7-1200 system in a compact, integrated I/O block.