Product Introduction
Upgrading or replacing aging remote I/O systems? The Schneider 140CRA31908 Ethernet RIO Drop Adaptor provides a modern, high‑performance link between a Modicon Quantum S908 coaxial bus and an M580 controller. This adaptor eliminates legacy bottlenecks while maintaining compatibility with existing I/O modules.
Technical Specifications
The 140CRA31908 operates on a rated voltage of 5 VDC at 1.2 A, dissipating a maximum of 6 W. It features 3 Ethernet ports supporting EtherNet/IP and Modbus TCP protocols. Four LED indicators (Mod Status, Net Status, RUN, I/O) simplify diagnostics. Ambient temperature range: 0 to 60 °C; humidity: 80% non-condensing. Protection rating: IP20. Operating altitude: 2000 m.
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Rated Voltage: 5 VDC
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Rated Current: 1.2 A
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Power Consumption: 6 W
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Ethernet Ports: 3 (service port + device network)
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Protocols: EtherNet/IP, Modbus TCP
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LEDs: 4 (module status, network status, RUN, I/O)
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IP Rating: IP20
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Temperature: 0 to 60 °C
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Humidity: 80% non-condensing
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Altitude: 2000 m
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Dimensions: 167 mm (W) x 50 mm (H)
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Net Weight: 0.554 kg
Industry Applications
The Schneider 140CRA31908 is ideal for modernizing water treatment, material handling, and process control lines. In a typical upgrade scenario, it replaces a legacy RIO head unit, allowing an M580 controller to manage remote I/O panels via a daisy‑chain loop. The dual‑protocol support eases integration with both existing Modbus TCP equipment and new EtherNet/IP smart devices.
Installation & Setup Guidance
Mount the 140CRA31908 on a DIN rail within a dry, ventilated enclosure (IP20 rated). Connect the three Ethernet ports: use the service port for local commissioning and the device network port for the I/O backbone. For a daisy‑chain topology, wire the first and last drops to the controller’s Ethernet ports. The four LEDs will indicate power‑on, network health, and I/O communication. Ensure ambient temperature stays between 0 °C and 60 °C and humidity below 80%.
Compatibility & Integration
The Schneider 140CRA31908 works with Modicon Quantum backplanes and is certified for use with BMEP586040, BMEH584040, BMEP585040, BMEH586040, and BMEP584040 controllers. It supports both EtherNet/IP and Modbus TCP, enabling mixed‑vendor field devices on the same network. The adaptor can replace older 800 series RIO modules without changing the existing I/O wiring.
Selection Guide & Purchasing Advice
Before ordering, verify that your controller supports the required protocol (EtherNet/IP or Modbus TCP) and that the I/O modules are Quantum‑compatible. The 140CRA31908 is a direct replacement for the S908 coaxial drop adaptor in M580‑based systems. For genuine, factory‑tested units, visit ubest101 or contact their sales team for bulk pricing and expedited delivery.