Schneider Electric Modicon Quantum 140NOE77110 Ethernet Network Option Module

Technical Dossier

Product Details And Specifications

Schneider Electric Modicon Quantum Series Technical Notes

The Schneider Electric Modicon Quantum platform is one of the most widely deployed Distributed Control System (DCS) and Programmable Logic Controller (PLC) architectures in global heavy industry. Installed across petrochemical refineries, nuclear power generation facilities, offshore oil and gas platforms, and large-scale chemical processing plants, the Quantum backplane architecture has maintained a dominant position in process automation since its commercial introduction in the mid-1990s. The 140NOE77110 is a 10/100 Mbps Ethernet TCP/IP Network Option Module designed for integration into the Quantum hot standby and standard rack configurations, supporting Modbus TCP/IP, I/O scanning, and Global Data services. Its role as a primary network interface card makes it a critical spare component for any facility running a Quantum-based control architecture.

The Evolution of Modicon Quantum Architecture

The Modicon Quantum platform was introduced by Schneider Electric (then Groupe Schneider / AEG Schneider Automation) in 1995 as a successor to the Modicon 984 series. The architecture was built around a high-speed local bus (X-Bus) backplane supporting up to 16 slots per rack, with the ability to extend across multiple racks via the RIO (Remote I/O) drop architecture using coaxial cable or fiber optic media. Early network connectivity relied on Modbus Plus (MB+) via the 140NOM21100 and 140NOM21200 adapters. As Ethernet TCP/IP became the industrial standard in the early 2000s, Schneider introduced the NOE (Network Option Ethernet) module family — including the 140NOE77100 and the current-generation 140NOE77110 — to provide native Modbus TCP/IP connectivity. The platform reached technical maturity by approximately 2010. Schneider Electric has since positioned the Modicon M580 (ePAC) as the strategic successor, with the Quantum platform now classified as a mature/legacy product line. Long-term spare parts availability and lifecycle extension support are therefore primary concerns for end users maintaining Quantum-based installations.

Modicon Quantum Full Catalog & Functionalities (SKU List)

Network & Communication Modules

• 140NOE77110: 10/100 Mbps Ethernet TCP/IP NOE module; Modbus TCP/IP, I/O scanning, Global Data
• 140NOE77100: 10 Mbps Ethernet TCP/IP NOE module; predecessor to 140NOE77110; Modbus TCP/IP
• 140NOM21100: Modbus Plus single-port network option module; peer-to-peer communications
• 140NOM21200: Modbus Plus dual-port network option module; bridge/repeater capable
• 140CRP93100: RIO head-end adapter module; manages remote I/O drops via coaxial or fiber
• 140CRA93100: RIO remote adapter module; installed at remote drop racks

CPU / Controller Modules

• 140CPU65150: Quantum CPU; 7 MB user memory; Unity Pro compatible; Ethernet port onboard
• 140CPU65160: Quantum CPU; 7 MB user memory; enhanced hot standby support
• 140CPU67160: Quantum CPU; 14 MB user memory; dual Ethernet; hot standby
• 140CPU67060: Quantum CPU; 3.5 MB user memory; standard process control applications
• 140CPU43412U: Legacy Quantum CPU; Modbus Plus; 512 KB memory; end-of-life

Digital I/O Modules

• 140DDI35300: 32-channel 24 VDC discrete input module; sink type
• 140DDO35300: 32-channel 24 VDC discrete output module; source type; 0.5 A per channel
• 140DAI54000: 16-channel 115 VAC discrete input module
• 140DAO84000: 8-channel 115/230 VAC discrete output module; relay isolated

Analog I/O Modules

• 140ACI04000: 4-channel analog current input module; 4–20 mA; 12-bit resolution
• 140ACO02000: 2-channel analog current output module; 4–20 mA; 12-bit resolution
• 140AVI03000: 4-channel analog voltage input module; ±10 VDC; 12-bit resolution

Power Supply Modules

• 140CPS11420: 115/230 VAC input power supply; 20 A at 5 VDC backplane output
• 140CPS21400: 24 VDC input power supply; 20 A at 5 VDC; for DC-powered panels

Quality Control for the Modicon Quantum Range

Modicon Quantum modules present specific test challenges due to their X-Bus backplane communication protocol and the interdependency between CPU, NOE, and I/O modules during initialization. DriveKNMS applies a structured test protocol for all Quantum modules prior to dispatch: (1) Visual inspection for capacitor degradation, PCB corrosion, and connector pin integrity; (2) Powered bench test using a dedicated Quantum rack with a reference CPU (140CPU65150) to verify module recognition and LED status codes; (3) For NOE modules including the 140NOE77110, functional Modbus TCP/IP communication test via a configured Unity Pro project to verify I/O scanning and Global Data exchange; (4) For CPU modules, full memory read/write cycle and hot standby switchover test where applicable; (5) Final firmware version verification and documentation of test results accompanying each shipment.