Siemens 6ES7222-1BH30-0XB0 SM 1222 Digital Output S7-1200

Product Overview

This digital output module provides eight high-speed transistor outputs for the SIMATIC S7-1200 system. Each channel supplies 0.5 A of continuous current at 24 V DC for small actuators. The module measures 45 mm in width, 100 mm in height, and 75 mm in depth. Its lightweight design weighs approximately 150 grams for simple cabinet installation. You can mount this module directly onto the S7-1200 DIN rail without special brackets. The front connector uses a removable terminal block for convenient field wiring.

This output module supports pulse-width modulation (PWM) functions on each channel individually. It also features short-circuit protection with automatic restart after fault clearance. The device provides electrical isolation between the load circuits and the CPU backplane. You can configure each output as a standard digital or high-speed pulse output. The module integrates seamlessly with the TIA Portal engineering environment.

Technical Specifications

Parameter	Specification
Product Type	Digital Output Module
Model	6ES7222-1BH30-0XB0
Output Channels	8 (transistor, solid-state)
Output Voltage	24 V DC (nominal)
Current per Channel	0.5 A (continuous)
Total Current	4 A (maximum per module)
Switching Frequency	Max. 100 Hz (standard), 1 kHz (PWM)
Short-Circuit Protection	Yes (electronic with auto-restart)
Electrical Isolation	Yes (500 V DC between groups)
PWM Function	Yes (per channel)
Power Loss	Typ. 2.5 W
Supply Voltage	24 V DC (from system power)
Dimensions (W x H x D)	45 mm x 100 mm x 75 mm
Weight	Approx. 150 g
Mounting	DIN rail (EN 60715)
Operating Temperature	-20 °C to 60 °C
Terminal Type	Removable screw-type

Key Features and Benefits

This module offers flexible configuration for both standard and PWM output applications. Its auto-restart feature minimizes downtime after a short-circuit event occurs. You can connect small solenoids, indicator lamps, and solid-state relays directly. The removable terminal block simplifies wiring and module replacement tasks. The module’s compact size leaves room for additional I/O modules in the rack.

Installation and Compatibility

You clip this module onto the DIN rail beside the S7-1200 CPU and power supply. The integrated bus connector establishes communication with the controller automatically. You can mix this output module with any other SM series digital and analog modules. The TIA Portal software detects the module when you scan the hardware configuration. You then assign output addresses and set parameters through the device configuration view. The module’s firmware updates automatically through the CPU during routine maintenance.

Typical Applications

Packaging lines use this module for controlling pneumatic valves and small motors. Conveyor systems rely on it for activating diverters and stop gates. The module also serves in material handling and labeling equipment.