Operating Voltage:DC 24V
Number of Inputs:16
Temperature Range:-25°C to +60°C
Isolation Resistance:≥ 1000MΩ
Contact Rating:5A @ 24VDC, 1A @ 230VAC
Operating Humidity:5% to 95% non-condensing
Protection Class:IP20
Integrating advanced technology from SIEMENS, the Digital Input Module SM 321 ensures seamless integration into the S7-300 PLC system, enhancing the efficiency of your automation solutions.
Each of the 16 digital inputs is designed to handle a wide range of 24-48 V AC/DC signals, making it suitable for various industrial applications.
Optical isolation between the inputs and the PLC prevents interference, ensuring stable and reliable signal transmission even in noisy environments.
The compact design and lightweight construction of the SM 321 facilitate easy installation and maintenance, reducing downtime and enhancing operational productivity.
Equipped with a durable connector, this module supports long-term, high-reliability operation, critical for continuous industrial processes.
Backed by SIEMENS’s commitment to quality and innovation, the Digital Input Module SM 321 is a trusted choice for upgrading or expanding your existing PLC systems.
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