Description
Schneider 140CRA21110
I. Overview
Schneider 140CRA21110 is a distributed I/O (DIO) drop interface module. It is mainly used for remote digital signal acquisition and output expansion in industrial control systems. Serving as a communication bridge between Quantum PLC and field I/O devices, it realizes signal interaction and equipment control under distributed architecture.
The module is equipped with one single network port and supports wide-range 115/230V AC power supply (85-276V AC). It has built-in short-circuit and overvoltage protection circuits, and integrates I/O mapping capability of 30 input words and 32 output words, which can efficiently connect field sensors, actuators, valves and other equipment. Adopting industrial-grade reinforced design, it features vibration resistance and wide temperature adaptability, suitable for harsh industrial environments.
II. Product Parameters
| Parameter Name | Specifications |
|---|---|
| Model | Schneider 140CRA21110 |
| Manufacturer | Schneider Electric |
| Product Series | Modicon Quantum Automation Platform |
| Product Type | Distributed I/O (DIO) drop interface module |
| Core Functions | Remote digital signal acquisition, I/O expansion, communication between PLC and field devices |
| Port Configuration | 1 single network port |
| I/O Mapping | 30 input words, 32 output words |
| Supply Voltage | Rated 115/230V AC; Range: 85-276V AC (47-63Hz) |
| Operating Current | 0.2A @ 115V AC; 0.4A @ 230V AC |
| Inrush Current | 10A @ 115V AC; 20A @ 230V AC |
| Output Specification | 5.1V DC, Rated 3A (with short-circuit / overvoltage protection) |
| Power Consumption | 11W (Typical) |
| Insulation Voltage | 500V DC |
| Operating Temperature | 0℃~60℃ |
| Storage Temperature | -40℃~85℃ |
| Vibration / Shock Resistance | 15g-11ms (3 axes, 3 shocks per direction, compliant with IEC 60068-2-27 Ea) |
| Protection Rating | IP20 |
| Mounting Method | Standard Quantum series backplane mounting |
| Product Status | Phase-out production; Replacement model: BMECRA31210 |
| Compatible Devices | Modicon Quantum PLC, industrial sensors, actuators, distributed I/O devices |
III. Technical Features
Wide-range & Stable Power Design: Supports dual rated voltage 115/230V AC with wide input range 85-276V AC, compatible with global industrial power standards. Built-in overcurrent and short-circuit protection with matched 1.5A fuse effectively resists power fluctuation and fault impact, ensuring stable module operation.
- Efficient Distributed I/O Expansion: As a DIO drop interface, it provides 30 input words / 32 output words signal mapping capacity, remotely expanding PLC digital I/O points. It simplifies distributed control system architecture, reduces on-site wiring cost, and adapts to large-scale equipment cluster control scenarios.
Industrial High Reliability: Adopts reinforced hardware design with operating temperature 0℃~60℃ and withstands 15g shock (11ms) with excellent vibration resistance. Compliant with UL508, CSA Class 1 Division 2 and other certifications, it is applicable to harsh industrial environments with high temperature, strong vibration and heavy electromagnetic interference.
- Complete Protection & Monitoring: Integrated output short-circuit and overvoltage protection prevents damage to the module and external devices caused by faults. Equipped with status LED indicators to feed back power, communication and fault status in real time, facilitating quick on-site troubleshooting and reducing O&M difficulty.
- Standard Compatibility & Easy Integration: Compatible with all standard backplanes of Modicon Quantum series (2/3/4/6/10/16 slots), plug-and-play without complex configuration. Single-port design simplifies communication connection and supports terminal block wiring, ideal for existing system renovation and legacy equipment replacement.
IV. Application Scenarios
1. Power Industry
Widely used in thermal power, hydropower, substations and other power scenarios. As a distributed I/O interface for Quantum PLC, it collects digital status signals of generators, transformers and switchgear, and outputs control commands to excitation devices, circuit breakers, protective relays and other equipment. It realizes remote monitoring and interlock control of power systems, with wide temperature and anti-interference performance adapting to harsh station environments.
2. Metallurgy & Chemical Industry
Suitable for process industries such as iron & steel metallurgy and petrochemicals. It is used for distributed signal acquisition and control of production lines, connecting field sensors, regulating valves, pumps, fans and other equipment to transmit digital signals such as start/stop, status feedback and interlock protection. It simplifies long-distance wiring, improves system response speed, and ensures continuous and stable operation of metallurgical smelting and chemical reaction processes.
3. Manufacturing Automation
Applied in automatic production lines such as automobile manufacturing, equipment processing and electronic manufacturing. As a distributed I/O drop, it expands PLC digital input and output points, connecting assembly line sensors, cylinders, servo drives, indicator lights and other devices. It realizes production beat control, equipment status monitoring, fault alarm and other functions, adapting to large-scale automated production with multi-device coordination.
4. Water Treatment & Infrastructure
Used in control systems of sewage treatment plants, water conservancy projects, urban pipe networks and other infrastructure. It collects digital signals from water quality monitoring equipment, water pumps, valves and bar screens, and outputs control commands to realize equipment start-stop, flow regulation and fault interlock. Its wide voltage supply and high reliability adapt to outdoor, humid and dusty on-site environments.
5. Legacy System Maintenance & Upgrade
