Product Details

The Schneider 140CRA21120 DIO drop interface module is a remote distributed I/O communication adapter of Modicon Quantum PLC automation platform, designed to connect the main rack to remote DIO drop stations for distributed signal acquisition and control. This DIO drop interface module adopts 24 V DC rated power supply, equipped with 2 independent DIO communication ports to support redundant bus connection for improved communication reliability. It undertakes data transmission between Quantum main CPU and remote I/O stations, realizing high-speed exchange of digital input and output signals. The module can transmit I/O data to the main processor and feed back fault diagnosis information of remote stations, helping operators monitor the running status of distributed I/O points in real time. It can be directly inserted into the Quantum backplane rack, adopts standard hot pluggable structure for convenient installation and replacement during system maintenance. Integrated overcurrent and short-circuit protection circuits improve the stability of remote I/O network. This original Schneider product was discontinued on Dec 31,2022 and end-of-service on Dec 31,2028, widely stocked as spare replacement parts for maintenance and upgrade of legacy distributed industrial automation systems. It is widely deployed in power, petrochemical, water treatment and manufacturing plants as the remote I/O drop interface for Modicon Quantum automation racks.

Brand: Schneider Electric

Model: 140CRA21120

Series: Modicon Quantum

Type: DIO Drop Interface Module

Rated Supply Voltage: 24 V DC

Port: 2 DIO communication ports

Feature: Distributed remote I/O connection, dual DIO bus ports, built-in fault diagnosis, hot plug support

Mounting: Install on Modicon Quantum rack backplane

Operating Temperature: 0℃ ~ 60℃

Weight: 0.85kg

Status: Discontinued original spare part,end-of-service 2028

Certification: CE,FM Class 1 Division 2,cUL

Application: Remote distributed I/O communication interface for Modicon Quantum industrial automation racks