What This Module Brings to Your Control Network

The 140NOE77111 is a Class C30 Ethernet TCP/IP module designed for Schneider Electric's Modicon Quantum platform. It sits in the rack alongside the processor and I/O, drawing 750 mA at 5 V DC from the backplane. Its job is straightforward: give the PLC a fast, reliable connection to Ethernet-based networks so it can talk to HMIs, SCADA systems, drives, and other controllers. The module offers both MT/RJ fiber optic and RJ45 copper interfaces, so you can choose the physical medium that fits your plant layout. It fits standard Quantum chassis without modification, making it a practical choice when upgrading older systems or adding Ethernet to existing installations. For engineers working with Schneider PLC parts or expanding their control architectures, this module provides a proven way to bring modern networking to Quantum-based systems.

Communication Tools That Make Integration Easier

The 140NOE77111 runs at 10 or 100 Mbit/s and comes with a solid set of communication features. It handles Modbus TCP messaging for peer-to-peer and client-server exchanges, I/O scanning for direct data collection from distributed I/O, and Global Data for sharing real-time values across multiple controllers. Bandwidth management keeps traffic under control, and the FDR server automatically restores module settings if a unit gets replaced – a small but useful time-saver. SNMP gives you remote visibility into network status, NTP keeps clocks aligned across devices, and SMTP lets the module send alarm notifications straight to email. The built-in web server supports FactoryCast configuration, so you can check diagnostics or view process data from any browser. These tools make the module a good fit for applications that need more than basic connectivity – whether you're tying into HMI displays, coordinating Inverter Drives, or building out a distributed control scheme.

Built Tough, Certified, and Still Supported

This module is made for industrial settings. It runs reliably between 0°C and 60°C and can be stored from -40°C to 85°C, with 95% humidity tolerance and no condensation. The IP20 enclosure is standard for rack-mounted gear, and the module carries UL 508, cUL, CSA C22.2 No 142, and FM Class 1 Division 2 certifications – so it is safe to use in hazardous locations. It also stands up to electrostatic discharge (4 kV contact, 8 kV on air) and electromagnetic fields (10 V/m), which means it behaves itself even in electrically noisy environments. Hot standby support is available for systems that cannot afford downtime. Although Schneider Electric stopped taking new orders for this module in March 2022, they are still offering repair and spare parts through December 2029. If you are looking for hard-to-find automation parts or need to keep an existing Quantum system running, this module is still available through industrial automation parts suppliers.

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