Configured for remote I/O head adaptation in Modicon Quantum automation platforms, the Schneider Electric 140CRA31200 (base model 140CRA31200 Ethernet RIO head adaptor) provides direct physical and electrical execution of input data acquisition and output update functions over an Ethernet RIO network.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model Brand | Schneider Electric |
| Origin | France |
| Weight | 0.3kg |
| Dimensions | 5.1 cm x 10.2 cm x 25.4 cm |
| Operating Temp | 0 degC to 60 degC |
| Storage Temp | -40 degC to 85 degC |
| Power Consumption | Not specified (backplane powered) |
| Network Ports | 4 Ethernet ports |
| Communication Protocol | Ethernet IP, Modbus TCP |
| Topology | Daisy chain loop |
| IP Rating | IP20 |
Profinet/EtherNet/IP Deterministic Networks
This module supports deterministic communication behavior within EtherNet/IP architectures, maintaining cyclic I/O data exchange with predictable latency under load. Backplane bus communication velocity aligns with Modicon Quantum rack performance limits, ensuring consistent data refresh rates across distributed I/O drops. Firmware flash compatibility is constrained to certified Quantum firmware releases; cross-series loading is not supported.
Frequently Asked Questions
Q: Does the 140CRA31200 support hot-swap insertion into a powered Quantum rack?
A: No. Insertion or removal must occur only when the rack power is off to prevent backplane damage or network disruption.
Q: What is the maximum cable length supported between this head adaptor and a drop adaptor?
A: Cable length must comply with standard Ethernet distance limits of 100 m per segment using Cat 5e or higher-rated cable.
Q: Is this module compatible with 140CRP31200 drop adaptors?
A: Yes. The 140CRA31200 operates specifically with 140CRP31200 Ethernet RIO drop adaptors in a daisy chain loop topology.
Field Installation Guidelines
Mount the module directly onto a standard 19-inch rack or DIN rail where applicable. Ensure all Ethernet cables are shielded with foil or braided shielding, grounded at one end only to avoid ground loops. Maintain separation between power and signal cabling to reduce electromagnetic interference. Verify that the network switch supports EtherNet/IP priority tagging if mixed traffic is present. Tighten mounting screws to manufacturer torque specifications to prevent mechanical vibration loosening during operation.
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