Siemens – 6ES7 321-1BH50-0AA0 – Digital Input SM 321 – Programmable Logic Controller (PLC) Module

Manufacturer:Siemens

Model Number:6ES7 321-1BH50-0AA0

Module Type:Digital Input Module

Module Class:S7-300

Application:Control and monitoring of industrial machinery

Input Type:Digital

Number of Inputs:16

Supply Voltage:24 V DC

Current Load:2.5 A

Connector Type:20-pin

Operating Temperature:-25°C to +70°C

Conformity Standard:EN 50155

Conformal Coating:Yes

Communication Interface:PROFINET

Expansion Capability:Up to 8 additional signal boards

Storage Capacity:125K program memory, 1MB data storage

Fieldbus Compatibility:PROFINET PROFIsafe

    The Siemens Digital Input Module SM 321 is specifically designed for seamless integration into SIMATIC S7-300 PLC systems, enhancing efficiency and reliability in industrial automation.

    Equipped with 16 discrete digital inputs, this module supports 24V DC operation, providing robust and stable signal acquisition.

    Featuring an ergonomic design and compact footprint, it optimizes space usage in control panels without compromising functionality.

    With its floating contacts, the SM 321 ensures isolation between input and output circuits, preventing potential electrical interference and enhancing system safety.

    Compliant with international standards, this module is compatible with a wide range of industrial applications, including machinery control, process monitoring, and data acquisition systems.

    Backed by Siemens’ reputation for quality and innovation, the Digital Input Module SM 321 delivers unparalleled performance, making it an indispensable component for modern automation solutions.