Configured for deterministic backplane data exchange in the Modicon Quantum automation platform, the Schneider Electric 140NOE77111 (140NOE77111 Ethernet Network TCP/IP Module) provides direct physical-layer execution of Modbus TCP messaging and I/O scanning via fiber-optic and twisted-pair interfaces.
Suffix Breakdown & Model Matrix
| Code Segment | Definition |
|---|---|
| 140 | Modicon Quantum Series Prefix |
| NOE | Network Option Module with Embedded Ethernet |
| 771 | Hardware Revision / Base Configuration Identifier |
| 11 | Fiber Optic Variant (MT/RJ 100BASE-FX) |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 140NOE77111 |
| Brand | Schneider Electric |
| Origin | France |
| Weight | 0.345 kg |
| Dimensions | Standard Quantum Rack Format |
| Operating Temp | 0…60 deg C |
| Storage Temp | -40…85 deg C |
| Power Consumption | 750 mA @ 5 V DC |
| Transmission Rate | 10/100 Mbit/s |
| Physical Interface | MT/RJ 100BASE-FX Fiber Optic; RJ45 10/100BASE-TX |
| Communication Protocol | Ethernet Modbus TCP/IP |
| Redundancy | Hot Standby Supported |
| Protection Rating | IP20 |
| Certifications | UL 508, CSA C22.2 No 142, FM Class 1 Div 2, CUL |
Backplane Bus and Firmware Flash Characteristics
The module utilizes the standard Quantum backplane bus for high-speed data transfer between the processor and network interfaces. Firmware integrity is maintained through kernel download modes accessible via the dedicated Kernel LED indicator. Compatibility with FactoryCast web server configuration requires specific kernel versions aligned with the host processor firmware. The module supports FDR (Fast Device Replacement) server functionality, allowing automated IP address allocation and configuration restoration upon hardware replacement without manual intervention.
Frequently Asked Questions
Q: Does the 140NOE77111 support hot-swapping in a live rack?
A: No. The module must be inserted or removed only after the rack power supply is de-energized to prevent backplane electrical stress and potential corruption of the embedded web server configuration.
Q: What is the current load imposed on the backplane 5 VDC supply?
A: The module draws a maximum of 750 mA at 5 V DC, which must be accounted for when calculating total rack power budget alongside the CPU and other option modules.
Q: Is redundant fiber optic cabling supported on a single module?
A: No. Redundancy is achieved via hot standby architecture using two separate 140NOE77111 modules, each connected to independent network segments.
Field Installation Guidelines
Install the module into an available slot on the Modicon Quantum rack until the ejector levers fully engage. Ensure the RJ45 and MT/RJ ports are free of dust caps before connecting cables. For fiber optic links, verify proper MT/RJ connector polishing and clean end faces prior to mating. Maintain minimum bend radius of 35 mm for fiber cables to prevent signal attenuation. Ground the rack chassis to the facility earth grid using a low-impedance conductor. Terminate twisted-pair Ethernet cables with shielded RJ45 connectors, bonding the shield to the rack ground at the entry point to mitigate EMI. Verify Link and Run LEDs illuminate steady green after power-up to confirm successful initialization.
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