GE 8125-DI-DC - PAC8000 32-channel Digital Input

GE 8125-DI-DC - PAC8000 32-channel digital input module detailed introduction

Basic Overview

GE 8125-DI-DC is a 32-channel DC digital input module in the PAC8000 series, designed for industrial automation systems, used to collect switch signals and transmit them to the control system, supporting high-reliability real-time data interaction, suitable for manufacturing, energy, process control and other scenarios.

Core parameters and features

Channel configuration

Number of channels: 32 DC digital input channels, supporting simultaneous collection of 32 switch signals (such as buttons, proximity switches, relay contacts, etc.).

Input type: DC signal, compatible with multiple voltage levels:

Standard voltage: 24VDC (typical value), allowable range 19.2-30VDC.

Logic "1" threshold: ≥17VDC, logic "0" threshold: ≤5VDC.

Electrical characteristics

Input impedance: about 4.7kΩ (at 24VDC), to ensure the stability of signal acquisition.

Isolation method: Optoelectronic isolation is used between channels, and the isolation voltage is ≥500VAC, which effectively prevents interference and voltage shock.

Filter time: configurable 0.2ms-32ms to reduce signal jitter and noise.

Communication and interface

Bus protocol: Supports the high-speed backplane bus of the PAC8000 system to achieve real-time data transmission with the PLC controller.

Status indication: Each channel is equipped with an LED indicator to display the input signal status (ON/OFF) in real time for easy troubleshooting.

Interface type: It adopts a detachable terminal block (Phoenix terminal), which supports screw fixing or plug-in connection for easy maintenance.

Protection function

Overvoltage protection: The input port has a built-in transient suppression diode to prevent surge voltage (such as spikes when the inductive load is disconnected) from damaging the module.

Reverse protection: Supports power reverse protection to avoid module damage due to wiring errors.

Working conditions and installation

Environmental requirements

Working temperature: -40°C to + 70°C, suitable for harsh industrial environments.

Humidity: 5%-95% non-condensing, meeting the needs of high humidity scenarios.

Anti-interference: Complies with IEC 61000-6-2 industrial immunity standards, anti-electromagnetic interference (EMI) and radio frequency interference (RFI).

Installation method

Mechanical dimensions: about 177mm×101mm×76mm (length × width × height), compact design saves control cabinet space.

Installation type: standard DIN rail installation or panel screw fixing, supports vertical or horizontal installation.

Power consumption: typical power consumption ≤15W, low power consumption design reduces system heat dissipation pressure.

Application scenarios

Industrial automation: production line equipment status monitoring (such as motor start and stop, valve switch).

Process control: sensor signal acquisition (such as liquid level, pressure switch on and off status).

Power system: circuit breaker, relay status monitoring.

Building automation: switch signal access for access control and security systems.

Advantages compared with similar products

High-density channels: 32-channel design, compared with 16-channel modules, reduces installation space and wiring costs.

High reliability: Optoelectronic isolation and multiple protection mechanisms, suitable for strong electromagnetic interference environment.

Flexible configuration: The filter time and input threshold can be set through software to adapt to different types of sensors.

Hot-swap support: Supports module replacement during system operation to reduce downtime and maintenance time.

Summary

The GE 8125-DI-DC module has become a core component of digital signal acquisition in industrial control systems with its high channel density, strong anti-interference ability and flexible configuration characteristics. It is especially suitable for complex automation scenarios that require a large number of switch quantity monitoring to ensure stable and reliable operation of the system.