Siemens 6ES7321-1EL00-0AA0 Digital Input Module

Product manual:

Siemens 6ES7321-1EL00-0AA0 is a digital input module designed for the S7-300 PLC series. This module provides 32 input channels and can receive 24V DC digital signals, suitable for signal acquisition and processing in industrial automation control.
Main technical specifications:
Number of input channels: 32 digital inputs
Input voltage: 24V DC
Input current: 3 mA (per channel)
Isolation voltage: 500 V AC (input to backplane bus)
Functional features:
High density design: A single module with 32 inputs is suitable for scenarios that require a large amount of input signals.
Fast input response: With an input delay as short as 0.05 ms, it can quickly respond to changes in external signals, making it suitable for high-speed automation applications.
Status indication: Each input channel is equipped with LED status indicators for easy monitoring and debugging.
Diagnostic function: supports diagnostic function, can detect input faults such as short circuit and open circuit, and improve the reliability and stability of the system.
Standardized module: Designed to comply with Siemens S7-300 series module standards, easy to integrate into existing PLC systems.
Application areas:
Process control: Suitable for process control scenarios that require high-density signal acquisition, such as chemical, pharmaceutical, and other industries.
Building management system: suitable for multi signal input requirements in building automation.

Product details picture:

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