Siemens 6ES5420-4UA11 Digital Input Module

Product manual:

Siemens 6ES5420-4UA11 is a digital input module for SIMATIC S5 series PLCs.

It is used to receive switch signals from external devices and transmit these signals to the PLC system for processing.
Main features:
Input type: Digital input, used to receive switch signals (such as ON/OFF status of switches, buttons, sensors).
Input voltage:
Usually supports 24V DC input signals (depending on model and configuration).
Response speed: The module can quickly respond to signal changes from external devices, making it suitable for application scenarios that require high response speed.
Compatibility: Designed specifically for Siemens SIMATIC S5 series PLCs, it can seamlessly integrate with S5 series systems.
Application areas:
Industrial automation: used to receive signals from external devices such as sensors, switches, buttons, etc.
Production line monitoring: used in production and assembly lines to detect switch status, sensor status, etc.
Control system: Receive various switch inputs in the control panel and automation system.
Building automation: used to receive various control signals within the building, such as triggering signals for safety systems.

Product details picture:

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