The Schneider Electric 140NOM21200C is a high-reliability DIO head-end adaptor module for the Modicon Quantum PLC platform, designed to manage communication between the controller and distributed I/O drops.
What sets this module apart is its redundant communication architecture, featuring dual Modbus Plus ports and an additional serial interface. This ensures stable and continuous data exchange in critical automation systems where downtime is not acceptable. It is widely used in process industries, manufacturing lines, and distributed control systems that rely on Modbus Plus networks.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | DIO Head-End Adaptor Module |
| Platform | Modicon Quantum |
| Communication Ports | 2 × Modbus Plus (RS-485, redundant) + 1 × Modbus RS-232 |
| Transmission Rate | 1 Mbit/s |
| I/O Capacity | 30 Input Words / 32 Output Words |
| Compatible Drop Modules | 140CRA21210, 140CRA21220 |
| Diagnostics | Processor, RAM, checksum, address checks |
| Power Dissipation | ~4 W |
| Bus Current Requirement | ~780 mA |
| Mounting | Standard Quantum backplane |
| Dimensions (H × W × D) | 155 × 110 × 45 mm (standard Quantum module size) |
| Weight | Approx. 0.48 kg |
Recommended Related Models
- 140CRA21210C – Redundant DIO Drop Interface Module
- 140CRA21220 – 24V DC Redundant Drop Interface
- 140NOM21100C – Single-port Head-End Adaptor
- 140CPU31110C – Quantum CPU Processor
- 140XBP01600 – Quantum Backplane Rack
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