# Siemens SIMATIC S7-300 SM 322 Digital Output Module 16DO 24V DC 0.5A

**URL:** https://aio.lv/en/product--siemens-6es73221bh010aa0--3438835
**Data updated:** 2026-05-18 02:46 (EEST)
**Category:** Server Parts & Components
**Manufacturer:** Siemens
**Manufacturer code:** 6ES73221BH010AA0
**EAN:** 4025515060918
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The Siemens SIMATIC S7-300 SM 322 (6ES7322-1BH01-0AA0) is a high-performance digital output module designed for industrial automation systems. It features 16 digital outputs with a 24V DC rating and 0.5A current capacity per channel. This module is essential for controlling actuators and signaling devices within the S7-300 PLC architecture, ensuring reliable signal processing and system integration in demanding manufacturing environments.

## Long description

The Siemens SIMATIC S7-300 SM 322 is a robust digital output module engineered for seamless integration into industrial automation systems. It provides 16 isolated digital outputs, each capable of handling 24V DC at 0.5A, making it a reliable choice for managing actuators, valves, and signaling equipment within the S7-300 PLC architecture. This module ensures precise signal control and high availability in complex manufacturing environments.
Advantages
This module offers exceptional reliability and durability, which are hallmarks of the Siemens SIMATIC series. Its compact design allows for efficient space utilization within control cabinets, while the high-density 16-channel configuration simplifies wiring and reduces the overall footprint of the automation system. The module is designed to withstand the rigors of industrial operations, providing consistent performance and long-term stability for critical control tasks.
Suitable for
Controlling industrial actuators and solenoid valves
Operating signal lamps and status indicators
Integration into complex S7-300 PLC automation systems
Automated manufacturing and process control applications
This module is not suitable for applications requiring AC voltage switching or high-current loads exceeding 0.5A per channel. It is also not intended for use in environments that exceed the specified temperature or humidity ratings for the S7-300 series.
Key specifications
Number of digital outputs: 16
Output voltage: 24V DC
Output current: 0.5A per channel
Compatibility: SIMATIC S7-300 series
Isolation: Optically isolated channels
To use this module, install it onto the standard S7-300 mounting rail and connect it to the CPU via the backplane bus connector. Ensure that the 24V DC power supply is correctly wired to the front connector terminals. Once physically installed, configure the module within the PLC software environment to map the output addresses to your specific control logic.
What to consider before purchase
Verify compatibility with your existing S7-300 rack and CPU
Ensure your power supply meets the 24V DC requirements
Check that the 0.5A current limit is sufficient for your connected actuators
Confirm that you have the necessary front connectors for wiring
Usage recommendations: Always ensure that the power is disconnected before installing or removing the module to prevent electrical damage. Use appropriate wire gauges and ensure all terminal connections are tightened to the specified torque to maintain reliable signal transmission.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.24 kg |
| Product colour | Multicolour |
| Purpose | System power |
| Package depth | 51 mm |
| Package height | 152 mm |
| Package width | 131 mm |
| Module type | Analog |

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### What is the warranty period?

All Siemens products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Siemens service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

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