Product Details

The Schneider 140CRA21120C conformal coated DIO drop interface module is a rugged remote distributed I/O communication adapter of Modicon Quantum PLC automation platform, designed for distributed signal acquisition and control in humid, dusty and corrosive industrial environments. 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. The PCB circuit board is coated with Humiseal 1A33 conformal coating, which can effectively protect internal electronic components against moisture, dust and corrosive gas, ensuring stable continuous operation in chemical plants, offshore platforms and other severe industrial sites. 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 May 11,2021 and end-of-service on Dec 31,2029, widely stocked as spare replacement parts for maintenance and upgrade of legacy distributed industrial automation systems under harsh environments. 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: 140CRA21120C

Series: Modicon Quantum

Type: Conformal Coated DIO Drop Interface Module

Rated Supply Voltage: 24 V DC

Port: 2 DIO communication ports

Feature: Humiseal 1A33 conformal coating, 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 2029

Certification: CE,FM Class 1 Division 2,cUL,ATEX

Application: Remote distributed I/O communication interface for Modicon Quantum PLC racks in harsh industrial sites