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Operating Voltage:24VDC
Input Current:Max. 25mA per channel
Number of Inputs:16
Signal Types Supported:NC/NO, Normally Closed/Normally Open
Operating Temperature Range:-25°C to +60°C
Connection Type:Spring-Clamp Terminal Block
Power Supply:Separate Power Supply Required
The Siemens SM421 Digital Input Module is engineered for seamless integration into Siemens S7-300/400 PLC systems, offering robust functionality and reliability for industrial automation scenarios.
Featuring an efficient spring-clamp terminal block for easy wiring, this module ensures quick setup and maintenance without compromising on performance.
With support for both NC/NO signals, it caters to a wide range of industrial control requirements, enhancing system flexibility and compatibility.
Operated within a temperature range from -25°C to +60°C, the SM421 maintains optimal performance under diverse environmental conditions, ensuring reliable operation in various industrial settings.
For a separate power supply, this module ensures a clean signal path, reducing interference and enhancing overall system stability. It is designed to withstand the rigors of industrial environments, delivering consistent performance over long periods.
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