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Product Introduction
The Schneider Electric 140NOM21200C is a dedicated Distributed I/O (DIO) Head-End Adaptor designed to interface with remote I/O modules in Modicon Quantum automation systems. This communication module enables seamless fieldbus integration and data exchange between a central processing unit (CPU) and distributed devices on a plant floor.
Built for high-performance industrial control systems, the 140NOM21200C manages real-time communication with distributed I/O blocks via Modbus Plus or Modbus RTU and offers hot-swapping capabilities and reliable diagnostics. It is commonly used in scenarios where scalability, modularity, and decentralized control are crucial for system optimization.
This module allows engineers to offload I/O processing, simplifying system expansion and improving the overall responsiveness of Quantum-based control architectures.
Product Specifications
| Parameter | Details |
|---|---|
| Product Name | DIO Head-End Adaptor Module |
| Model Number | 140NOM21200C |
| Manufacturer | Schneider Electric |
| Series | Modicon Quantum |
| Function | Distributed I/O communication head-end |
| Communication Protocol | Modbus, Modbus Plus |
| Interface Type | RS-485 |
| Baud Rate Support | Up to 1 Mbps |
| Connector Type | 9-pin D-sub (RS-232/RS-485) |
| LED Indicators | Communication status, power, error |
| Configuration Tool | Unity Pro / EcoStruxure Control Expert |
| Power Supply | Supplied via backplane |
| Power Consumption | Approx. 300 mA @ 5 VDC |
| Hot-Swap Support | Yes |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Relative Humidity | 5% to 95% (non-condensing) |
| Mounting | Rack-mounted via Quantum chassis |
| Certifications | CE, UL, CSA, ATEX |
| Dimensions (H x W x D) | 103.9 × 40.3 × 250 mm |
| Weight | 0.493 kg |
Product Applications
The 140NOM21200C plays a crucial role in distributed automation networks, making it ideal for industries where centralized control must be extended to remote equipment without compromising performance. Key application areas include:
-
Water & Wastewater Treatment
Distributing control to field devices such as pumps, sensors, and valve actuators in large facilities. -
Oil & Gas Facilities
Monitoring remote wellheads, compressor stations, and metering systems over serial communication protocols. -
Factory Automation
Supporting flexible machine layouts by simplifying I/O distribution and wiring. -
Food & Beverage Manufacturing
Enabling precise control of conveyor systems, batching operations, and packaging machines. -
Transportation and Infrastructure
Used in intelligent transportation systems for distributed sensor integration and monitoring. -
Power Plants
Assisting in generator control, switchyard monitoring, and SCADA integration.
Product Advantages
-
Reliable Communication Backbone
Ensures consistent and noise-immune data transfer between controllers and remote I/O devices. -
Modular Scalability
Supports future system expansion by allowing additional remote I/O modules to be integrated easily. -
Hot-Swappable Design
Enables replacement or upgrading of modules without system downtime—minimizing maintenance disruption. -
Standardized Protocol Support
Compatible with widely used industrial protocols like Modbus and Modbus Plus, promoting interoperability. -
Diagnostic Capability
Real-time status LEDs and detailed diagnostics via software ensure quick fault detection and troubleshooting. -
Compact Footprint
Small form factor makes it suitable for space-constrained control cabinets. -
Backplane-Powered
Eliminates the need for external wiring or power sources, simplifying installation.
Frequently Asked Questions (FAQ)
1. What is the primary role of the 140NOM21200C module?
It acts as a communication bridge between the Quantum CPU and distributed I/O modules using Modbus or Modbus Plus protocols.
2. Can this module be used for remote I/O over Modbus RTU?
Yes, it supports Modbus RTU communication over RS-485, allowing integration with third-party Modbus devices.
3. Is it compatible with hot swapping?
Yes, the module can be inserted or removed from a powered rack without interrupting system operation.
4. Which software do I need to configure the module?
Unity Pro or EcoStruxure Control Expert are used for module configuration and diagnostics.
5. Can the 140NOM21200C be used in hazardous environments?
Yes, it carries ATEX, UL, and CSA certifications, making it suitable for industrial use in regulated zones.
6. How is the module powered?
It draws power directly from the Quantum backplane—no external power supply is required.
7. How many remote I/O drops can it manage?
This depends on the Quantum system configuration, but typically up to 31 Modbus slave devices are supported on RS-485.
8. What indicators are available on the front panel?
LEDs for Power, Communication (TX/RX), and Error provide immediate visual diagnostics.
9. Is it compatible with all Modicon Quantum CPUs?
Yes, it’s designed to be used with Quantum systems and is fully compatible across the platform.
10. What type of connectors does the module use?
It typically features a 9-pin D-sub connector for RS-232/485 communication, depending on the application.
Related Models from the Same Series
| Model Number | Description | Key Function | Series |
|---|---|---|---|
| 140NOM21100 | DIO Head-End Adapter (basic version) | Modbus head-end adapter | Modicon Quantum |
| 140CPU65160 | Quantum CPU Module | Central processing | Modicon Quantum |
| 140CHS11000 | Quantum 10-Slot Rack | Module housing and power bus | Modicon Quantum |
| 140CPS11420 | Power Supply Module | 115–230 VAC input for rack | Modicon Quantum |
| 140NOE77101 | Ethernet Communication Module | TCP/IP interface | Modicon Quantum |
| 140DDI84100 | Digital Input Module | 64-channel 24VDC input | Modicon Quantum |
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