Siemens 6ES7321-1BL00-0AA0 Digital Input Module

Siemens 6ES7321-1BL00-0AA0 is a digital input module (DI module) designed for the S7-300 PLC series. It can input binary signals from external devices into the PLC system for processing and control.

Main technical specifications:

Module type: Digital input module

Number of input channels: 16 inputs

Input type: 24V DC

Input current: typically 7mA (per channel)

Input delay: configurable from 0.2 to 12.8 ms

Insulation voltage: usually 500V (input to the backplane bus)

Functional features:

Module size: Compact design, suitable for standard S7-300 PLC racks.

Signal status display: Each input channel has LED indicator lights to display the signal status of the input.

Diagnostic function: It has diagnostic function and can detect faults such as short circuit and open circuit.

High reliability: Supports industrial applications and is suitable for automation control in harsh environments.

Application areas:

Suitable for fields such as factory automation, process control, and production line monitoring.

Commonly used for signal acquisition of various sensors, switches, buttons, and other devices.

This module is a basic but fully functional digital input module widely used in automation control systems, with high flexibility and stability.

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