Siemens SM321 – A Modular PLC Input Module for Industrial Automation

Type:Digital Input Module

Model Number:6ES7 321-1BL00-0AA0

Quantity of Inputs:4

Input Voltage Range:24V DC

Isolation Type:Optically Isolated

Application Area:Non-Hazardous

Signal Capability:Diagnosable Signals

PTB Tested:Yes

    The SIEMENS SM321 6ES7 321-1BL00-0AA0 is engineered for exceptional reliability and robustness in challenging industrial environments. It supports diverse signal types and ensures stable operation across a wide range of temperatures, making it ideal for use in manufacturing, process control, and automation systems.

    With an optically isolated design, this module minimizes interference and ensures safe data transmission even in noisy industrial settings. Its compact size allows for efficient installation in space-constrained environments, enhancing system flexibility and reducing costs.

    Equipped with a high-quality Profinet interface, the SIEMENS SM321 facilitates seamless communication with other devices within the automation network, enabling efficient data exchange and improved operational efficiency.

    Featuring an IP20 protection rating, the module is designed to withstand dust and splashes, ensuring reliable performance under varying conditions. Its conformal coating technology further enhances its durability, protecting against corrosion and moisture damage.

    This module comes with a user-friendly design, including clear labeling and easy-to-understand documentation, which simplifies setup and maintenance processes. It is compatible with the latest Siemens PLC systems, offering a future-proof solution for industrial automation projects.