SIEMENS SM321 – Digital Input Module, 4 Channels, 24V DC, Optically Isolated, NAMUR/DIN 19234 F, Hazardous Area Capable, PTB-Tested

Number of Inputs:16

Input Signal Type:Digital

Supply Voltage:24V DC

Isolation:Optically Isolated

Environmental Temperature Range:-25°C to +70°C

Operating Humidity:5% to 95% non-condensing

Communication Interface:Profinet

Dimensions (WxHxD):59.4mm x 116.5mm x 104.8mm

Weight:Approx. 0.3kg

    The SIEMENS SM321 Digital Input Module is an essential part of any industrial automation system, engineered to offer unparalleled performance and reliability. Designed with advanced optical isolation technology, this module ensures seamless integration with SIMATIC S7-400 PLCs, enhancing system efficiency and safety.

    With its robust 16-channel design, the module can handle a wide range of input signals, making it suitable for diverse control scenarios in manufacturing, process control, and other industrial environments.

    Equipped with an operating temperature range from -25°C to +70°C, this module is built to withstand harsh conditions, ensuring consistent performance throughout the year. Its low power consumption ensures minimal impact on the overall system efficiency, contributing to energy savings.

    The SIEMENS SM321 Digital Input Module undergoes PTB testing to guarantee compliance with international safety standards for hazardous areas. This ensures that it can be safely deployed in environments where electrical sparks might pose a risk, such as in chemical plants or oil refineries.

    Installation and maintenance are simplified by the use of 2-wire connection, reducing setup time and minimizing downtime. The compact size and modular design make it easy to integrate into existing systems, enhancing scalability and flexibility in future upgrades.