Schneider 140CRA21210C DIO Drop Interface

Company Information
E-mail		[email protected]
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Product Introduction

The Schneider Electric 140CRA21210C is a Distributed I/O (DIO) Drop Interface designed for the Modicon Quantum platform. It acts as an integral component in Schneider’s remote I/O communication architecture, providing reliable, high-speed data communication between the central Quantum CPU and remote I/O drops across the S908 RIO network.

By facilitating distributed control system architectures, the 140CRA21210C significantly simplifies wiring, improves modularity, and enhances operational flexibility in large-scale industrial environments. This sub-interface module enables seamless communication at the remote end of an RIO loop, making it ideal for field-level integration where multiple I/O devices need to be controlled from a central PLC without direct hardwiring.

Rugged in design and easy to configure, this module is a proven solution in high-reliability environments such as oil and gas, energy generation, water treatment, and manufacturing.

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Technical Specifications

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Product Applications

The 140CRA21210C is a key enabler of decentralized control architectures. It’s ideally suited for systems where multiple remote I/O panels or field devices need to be controlled or monitored from a central PLC. Common use cases include:

• Oil and Gas Operations
  Interfaces with field-mounted sensors, pumps, and actuators across pipelines and offshore rigs.

• Power Plants and Utilities
  Integrates distributed generator auxiliaries, turbine subsystems, and switchgear panels.

• Water and Wastewater Treatment
  Connects field panels and valve stations across large municipal or industrial water networks.

• Pharmaceutical Manufacturing
  Distributes I/O in controlled cleanroom environments and isolated production lines.

• Automotive and Heavy Industry
  Links remote panels for stamping, machining, and assembly stations to centralized control.

• Food and Beverage Processing
  Ideal for decentralized control of conveyor belts, packaging systems, and sensors spread across production lines.

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Key Advantages

• Flexible Remote I/O Communication
  Enables decentralized architectures with reliable RIO communication, reducing cabling and installation cost.

• High-Speed S908 Protocol
  Supports efficient real-time I/O exchanges at up to 1.5 Mbps.

• Industrial Durability
  Certified for operation in harsh industrial environments, including temperature extremes and high vibration.

• Simple Integration
  Fully compatible with Schneider’s Quantum ecosystem and EcoStruxure Control Expert.

• Diagnostic Feedback
  LED indicators provide clear operational status, while software-based diagnostics assist in troubleshooting.

• Compact and Lightweight
  Its form factor allows easy installation in standard Quantum racks without extra panel space.

• Proven Field Performance
  Used globally in critical infrastructure projects with consistent operational success.

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Frequently Asked Questions (FAQ)

1. What is the primary function of the 140CRA21210C?
It acts as a sub-interface module in a remote I/O setup, allowing distributed Quantum I/O to communicate with the CPU.

2. Which Schneider software supports this module?
It is configured and monitored using Unity Pro or EcoStruxure Control Expert.

3. What type of cable does it use?
Standard BNC coaxial cable with 75 Ohm impedance for S908 network communication.

4. Is it compatible with all Quantum CPUs?
Yes, it works with Quantum CPUs that support RIO/S908 communication.

5. Can it operate in extreme temperatures?
Yes, it functions between 0°C to 60°C, with storage capability from -40°C to 85°C.

6. How many drops can be connected using this module?
One module supports a single drop. Additional drops require additional sub-interface modules.

7. What does the LED status indicate?
The LEDs provide module status, communication activity, and I/O health indicators.

8. Is this module suitable for hazardous areas?
Yes, it holds ATEX and other certifications making it usable in classified environments.

9. Is it hot-swappable?
No, it should be inserted or removed only when the system is powered down.

10. Does it require a separate power supply?
No, it draws power directly from the Quantum backplane (5 V DC).

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Frequently Asked Questions (FAQ)

1. What is the primary function of the 140CRA21210C?
It acts as a sub-interface module in a remote I/O setup, allowing distributed Quantum I/O to communicate with the CPU.

2. Which Schneider software supports this module?
It is configured and monitored using Unity Pro or EcoStruxure Control Expert.

3. What type of cable does it use?
Standard BNC coaxial cable with 75 Ohm impedance for S908 network communication.

4. Is it compatible with all Quantum CPUs?
Yes, it works with Quantum CPUs that support RIO/S908 communication.

5. Can it operate in extreme temperatures?
Yes, it functions between 0°C to 60°C, with storage capability from -40°C to 85°C.

6. How many drops can be connected using this module?
One module supports a single drop. Additional drops require additional sub-interface modules.

7. What does the LED status indicate?
The LEDs provide module status, communication activity, and I/O health indicators.

8. Is this module suitable for hazardous areas?
Yes, it holds ATEX and other certifications making it usable in classified environments.

9. Is it hot-swappable?
No, it should be inserted or removed only when the system is powered down.

10. Does it require a separate power supply?
No, it draws power directly from the Quantum backplane (5 V DC).

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