Siemens 6ES7322-1HH01-0AA0 – digital output module

The Siemens 6ES7322-1HH01-0AA0 is a digital output module from the SIMATIC S7-300 series (SM322), designed for controlling actuators and output devices in industrial automation systems. It provides 16 digital output channels for switching loads such as relays, solenoids and indicator lamps.

The module integrates seamlessly with S7-300 PLC systems and ensures reliable switching performance in demanding industrial environments.

Technical overview:
• Series: SIMATIC S7-300 (SM322)
• Module type: digital output module (DO)
• Model: 6ES7322-1HH01-0AA0
• Number of outputs: 16 channels
• Output type: digital outputs (relay or transistor depending on variant)
• Output voltage: typically 24 V DC
• Current per channel: up to approx. 0.5 A
• Load type: resistive and inductive loads
• Backplane communication: S7-300 bus
• Mounting: DIN rail installation
• Operating temperature: approx. 0°C to +60°C

Typical applications:
• Industrial machine control
• Actuator control (valves, relays, lamps)
• Production line automation
• PLC-based control systems
• General industrial automation

About the manufacturer:
Siemens is a global leader in industrial automation and digitalization technologies. The company develops SIMATIC PLC systems, industrial communication networks, HMI devices and automation platforms widely used in manufacturing and process industries worldwide.