Description
Schneider Electric 140NOM21200 DIO Head-End Adaptor
Configured for distributed I/O interfacing in the Modicon Quantum automation platform, the Schneider Electric 140NOM21200 (base model 140NOM21200) provides deterministic data exchange over Modbus and Modbus Plus networks via twisted pair copper media.
Hardware Specifications
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Parameter
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Specification
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Model Brand
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Schneider Electric
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Origin
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France
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Weight
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0.4kg
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Dimensions
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Not specified
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Operating Temp
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0 to 60 degC
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Storage Temp
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-40 to 85 degC
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Power Consumption
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4 W
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Bus Current Requirement
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780 mA
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Transmission Rate
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1 Mbit/s
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I/O Capacity
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30 inputs / 32 outputs
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Ports
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1 x Modbus RS232 twisted pair redundant copper
2 x Modbus Plus RS485 twisted pair redundant copper
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RAM
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Integrated
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Checksum
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Yes
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Relative Humidity
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95 % non-condensing
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Altitude
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<= 5000 m
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Backplane Bus Communication Velocity & Firmware Flash Compatibility
The module integrates directly into the Quantum backplane, supporting deterministic cycle times required for high-speed discrete control. Firmware revisions must match the installed CPU series; mismatched flash loads may prevent network initialization. Redundant copper ports maintain synchronized scan cycles under switchover conditions without data loss.
Frequently Asked Questions
Q: Does the 140NOM21200 support hot-swap insertion?
A: No. Backplane power must be removed prior to installation or removal to avoid damaging bus transceivers.
Q: What is the typical bus current load impact on the Quantum rack?
A: The module draws 780 mA from the backplane supply; ensure total rack loading remains within the power supply rating.
Q: Can firmware be upgraded independently of the CPU?
A: Firmware updates must occur through the CPU programming environment with the rack online but I/O disabled.
Field Installation Guidelines
Mount the module in any available slot of a compatible Quantum rack. Use shielded twisted pair cabling for all Modbus and Modbus Plus connections, terminating shields at the rack ground point only. Maintain minimum separation of 10 cm between communication cables and high-voltage power wiring to reduce crosstalk. Verify termination resistors are installed at both ends of each network segment before applying power.
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Product Type: DIO Head-End Adaptors
Tags: DIO Head-End Adaptors, Schneider Electric Modicon Quantum
