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Description

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.

Features

  • Supports redundant dual-cable network configurations for enhanced availability.
  • Compatible with the S908 Remote I/O bus architecture.
  • Provides a high-speed data transfer rate of 1.544 Mbps.
  • Supports up to 31 remote I/O drops per network segment.
  • Features dual F-type coaxial connectors for robust physical layer connectivity.
  • Includes integrated diagnostic reporting for cable faults and drop status monitoring.
  • Equipped with physical address switches for precise network hierarchy configuration.

Applications

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.

Technical Specifications

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)

Installation Guidelines

  • Ensure the PLC rack is powered down before inserting or removing the module.
  • Use appropriate coaxial cable and F-type connectors to maintain signal integrity; ensure proper shielding and grounding to mitigate EMI.
  • Verify the physical address switch settings on the rear of the module match the network configuration requirements before installation.
  • Maintain adequate ventilation within the cabinet to stay within the 0 to 60 deg C operating temperature range.
  • Handle with standard ESD precautions to prevent damage to sensitive internal circuitry.

FAQ

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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