Description
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The Siemens part number
is a Digital Output (DO) module for the SIMATIC S7-300 series of Programmable Logic Controllers (PLC). It is a reliable, high-performance module used to control external devices in industrial automation systems.
- Product Type: Digital Output Module SM 322.
- System Compatibility: Designed for use with the Siemens SIMATIC S7-300 automation system.
- Number of Outputs: 16 digital output channels.
- Output Voltage: 24 V DC (permissible range 20.4 V to 28.8 V DC).
- Output Current: Each channel can supply up to 0.5 A.
- Total Current: A total current of 4 A per group (outputs are isolated in groups of 8) and 8 A per module.
- Isolation: Features optical (galvanic) isolation between the channels and the backplane bus, which improves reliability and protects against electrical noise.
- Connectivity: Uses one 20-pole front connector.
- Response Time: Has a fast signal delay time, typically between 0.1 ms and 0.5 ms.
- Short-circuit protection: The outputs are short-circuit protected.
- Applications: Suitable for controlling solenoid valves, DC contactors, indicator lights, and electric motors in various industrial applications















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