The 6ES7222-1BH32-0XB0 is a 16-channel 24V DC/0.5A transistor digital output module (SM 1222) for the S7-1200 PLC system. Utilizing sourcing (PNP) output logic with built-in optocoupler isolation and demagnetization voltage suppression, it provides microsecond-level response times to safely drive inductive loads such as field solenoid valves or relays.
16 independent output channels
Powerful inductive load suppression and safety isolation
Utilizing solid-state transistor drive technology
This module features a typical power loss of only 2.5 W, supports a wide supply voltage range from 20.4 V to 28.8 V, and delivers microsecond-level ultra-high-speed switching response. However, since it is not equipped with internal electronic short-circuit protection, an external physical fuse must be provided in practical engineering applications to prevent hardware burnout.
The module provides a safe electrical isolation of 500 V AC between the channels and the backplane bus, integrates an inductive demagnetization suppression circuit alongside comprehensive diagnostic alarms, and has obtained multiple global approvals including FM explosion-proof and Marine certifications, enabling stable operation in harsh industrial and marine environments from -20 °C to 60 °C. It should be noted that this module adopts a split-body design and its standard original factory packaging does not include a front connector. Users must independently select and purchase matching front terminal components based on actual onsite wiring requirements during project configuration and procurement.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Siemens 6ES7222-1BH32-0XB0 Digital output Module Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Water & Wastewater Treatment
Drives start relays for dosing pumps, controls 24V DC solenoid valves for pneumatic butterfly valves, and powers running status indicator lights.
Packaging Machinery
Delivers ultra-fast driving for cutter cylinder solenoid valves, feeding mechanism positioning electromagnets, and coder trigger signals in high-speed packaging machines.
Pharmaceutical & Medical Manufacturing
Drives high-frequency sorting solenoid valves in capsule filling machines, suction cup vacuum generator valves for carton openers, and DC contactors for cleanroom fan sections.
Metallurgy & Steel Industry
Controls cooling water loop solenoid valves in auxiliary hydraulic stations, triggers start contactors for automatic lube pumps, and activates remote audio-visual alarms.
Rubber & Plastics Machinery
Drives dryer feeding valves in injection molding auxiliary systems, water-filling solenoid valves for mold temperature controllers, and DC solenoid valves for robotic arm gripping movements.
Petrochemical & Chemical Industry
Drives sampling pneumatic valves and external relay coils for small dosing mixer motors in non-hazardous auxiliary zones such as chemical dosing workshops.
First, this module utilizes sourcing (PNP) output logic, which outputs a positive 24 V DC potential to the exterior when turned on, meaning the other end of the external load must be connected to the common negative terminal (M) to form a complete circuit.
Second, the module does not feature integrated electronic short-circuit protection, so users must configure fast-acting fuses in the external power distribution circuit for physical protection to prevent accidental external short circuits or overloads from burning out the output transistors.
Lastly, this module does not support hot-swapping under power, so you must ensure the entire S7-1200 PLC system is completely powered off during onsite wiring maintenance, terminal block plugging, or module installation to prevent physical damage to the transistors from transient electrical surges.
The module connects to the CPU via integrated side-sliding bus connectors, supporting driver-free configuration within TIA Portal. It features 16 channel status LEDs and a DIAG indicator on its housing, making it a core expansion component for achieving highly reliable digital signal output drives in automation control systems.
It is a digital output expansion module for the Siemens S7-1200 PLC system. It features 16 digital output channels utilizing 24V DC transistors. It is primarily used to control low-power DC loads.
How do you properly use a product like the 6ES7222-1BH32-0XB0?
You need to install it on the right side of the S7-1200 CPU. Connect it to the master unit using the slide lock on the backplane bus. Then add this specific model to your hardware configuration in TIA Portal. Finally control external devices using Q addresses in your program.
What type of output technology does the 6ES7222-1BH32-0XB0 use?
It uses transistor output technology specifically MOSFET source outputs. This means it can only control 24V DC loads. It is not suitable for controlling alternating current AC loads.
What is the maximum output current per channel for the 6ES7222-1BH32-0XB0?
Each output channel supports a maximum current of 0.5A at rated 24V DC. The maximum aggregate current per common group is 4A. The total load of the entire module must not exceed this limit.
How many I/O addresses does the 6ES7222-1BH32-0XB0 module occupy?
It has 16 output points. Therefore it occupies exactly 2 bytes of output address space in the PLC system. It does not occupy any input I address space at all.
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