PLC | Siemens | 6ES7222-1HH32-0XB0 6ES72221HH320XB0 S71200 Digital output SM 1222

Product Description: Siemens 6ES7222-1HH32-0XB0

The Siemens 6ES7222-1HH32-0XB0 is a digital output signal module from the SIMATIC S7-1200 series, designed to expand the output capability of S7-1200 PLC systems. This module, classified as SM 1222, provides 16 relay-type digital outputs with switching capacity up to 2 A per channel. It is ideal for switching actuators, such as contactors, indicator lights, solenoids, and other electromechanical loads in industrial automation environments. With its robust relay outputs and high isolation between channels and the backplane, this module ensures reliable switching performance, even in applications with demanding electrical isolation or mixed signal requirements.

Key Features

• Relay Outputs: 16 channels for switching both AC and DC loads.
• High Current Capacity: Each output supports up to 2 A switching current.
• Electrical Isolation: Galvanic isolation between channels and logic circuitry.
• Flexible Control: Suitable for a variety of output devices including motors, lights, and contactors.
• Compact and Scalable: Integrates easily into S7-1200 systems for output expansion.

Technical Specifications

• Product Type: Digital Output Module
• Part Number: 6ES7222-1HH32-0XB0
• Series: SIMATIC S7-1200
• Module Type: SM 1222 DQ 16×Relay
• Number of Outputs: 16 digital outputs
• Output Type: Relay (electromechanical)
• Switching Capacity: Max. 2 A per channel
• Rated Voltage: 5–30 V DC / 5–250 V AC
• Isolation: Galvanic isolation between outputs and logic
• Mounting: DIN rail (standard S7-1200 form factor)
• Operating Temperature: -20°C to +60°C
• Weight: Approx. 300 g

Application Areas

• Machine Control: For actuating relays, contactors, valves, and indicator lamps.
• Process Automation: Controls field devices in batch, mixing, and conveying systems.
• Building Automation: Used in HVAC control, lighting systems, and access automation.
• General Industrial Automation: Suitable for switching any electromechanical output devices.

Advantages

• High Load Compatibility: Relay outputs handle both AC and DC loads directly.
• Electrical Robustness: Strong isolation improves reliability in noisy industrial environments.
• Efficient Output Expansion: Adds significant output capacity to compact S7-1200 CPUs.
• Modular Design: Easily snap-on installation with other S7-1200 components.
• Proven Reliability: Designed for demanding industrial conditions with long service life.