The Schneider Electric 140NOM21200 is a specialized Distributed I/O (DIO) Head End Adaptor designed for the Modicon Quantum automation series. This hardware component functions as the critical link between the main PLC processor and remote I/O drops, facilitating reliable, deterministic communication across expansive industrial environments. By leveraging the S908 remote I/O protocol, the module allows for the integration of field devices over significant distances, effectively streamlining cabling requirements and reducing installation complexity in large-scale infrastructure.
This adaptor is widely utilized in mission-critical automation sectors, including oil and gas refining, power generation plants, and mining operations. It is particularly effective in scenarios requiring high-speed, deterministic data exchange between a central controller and geographically dispersed remote I/O stations.
| Model | 140NOM21200 |
| Brand | Schneider Electric (Modicon) |
| Protocol | S908 Remote I/O |
| Data Rate | 1.544 Mbps |
| Connectivity | 2 x F-type coaxial (redundancy supported) |
| Power Consumption | 750 mA at 5 VDC |
| Operating Temperature | 0 to 60 deg C |
| Storage Temperature | -40 to 85 deg C |
| Max Distance | Up to 4500 meters (with repeaters) |
| Isolation | 500 VDC (network to bus) |
| Humidity | 0 to 95% (non-condensing) |
Q: Does the 140NOM21200 support redundant cabling?
A: Yes, the module is equipped with dual F-type coaxial connectors designed to support redundant cable paths for increased network reliability.
Q: What is the maximum number of drops this module can manage?
A: The module supports up to 31 remote I/O drops per network segment.
Q: Is this module compatible with Modbus Plus?
A: This module is specifically designed for the S908 Remote I/O architecture within the Modicon Quantum system.
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