Schneider Electric Quantum TCSEGDB23F24FA Modules

Technical Dossier

Product Details And Specifications

Schneider Electric Quantum Series: Comprehensive Module Range and Technical Overview

The Schneider Electric Modicon Quantum series is one of the most widely deployed programmable automation controller (PAC) platforms in global heavy industry. Installed across petrochemical refineries, nuclear power stations, offshore platforms, and large-scale chemical processing facilities, the Quantum backplane architecture has served as the backbone of safety-critical and process-critical automation since its introduction in the early 1990s. The TCSEGDB23F24FA is a Quantum-compatible Ethernet TCP/IP proxy module designed to bridge legacy Modbus serial field devices into modern Ethernet-based control networks, making it a critical interface component in mixed-generation plant environments.

The Evolution of Quantum Architecture

The Modicon Quantum platform was introduced by Schneider Electric (then Square D / Modicon) in the early 1990s as a high-availability, rack-based PLC/PAC system targeting large-scale process industries. The original architecture centered on the 140-series I/O modules and the 140CPU series processors, communicating over the proprietary Modbus Plus (MB+) network. As Ethernet TCP/IP became the dominant industrial protocol in the late 1990s and 2000s, Schneider introduced the TCS-prefix communication modules — including the TCSEAA and TCSEGDB families — to provide transparent Ethernet gateway and proxy functionality without requiring full system replacement.

The TCSEGDB23F24FA specifically functions as a Modbus TCP proxy, enabling Quantum CPUs to communicate with Ethernet-attached devices using standard TCP/IP port 502. It supports up to 16 simultaneous TCP connections and is compatible with Unity Pro and Concept programming environments. As the Quantum platform has entered its mature/end-of-active-development phase (with the M580 series designated as the strategic successor), the TCSEGDB family has transitioned into a long-term maintenance and lifecycle extension role. Replacement with equivalent M580 BMENOC modules is the recommended migration path, but installed base support for TCSEGDB modules remains active through authorized distributors and specialist spare parts suppliers.

Quantum Full Catalog & Functionalities (SKU List)

Communication & Proxy Modules

• TCSEGDB23F24FA: Ethernet TCP/IP proxy module, 10/100 Mbps, 16 TCP connections, RJ45, 24 VDC
• TCSEGDB23F24FK: Ethernet TCP/IP proxy module, conformal-coated variant for harsh environments
• TCSEAA23F12F0: Ethernet TCP/IP access module, 12-port managed switch integrated, DIN-rail
• TCSEAA23F24F0: Ethernet TCP/IP access module, 24 VDC, standard rack-mount variant
• 140NOE77100: Quantum Ethernet TCP/IP network option module, 10/100 Mbps, embedded web server
• 140NOE77101: Quantum Ethernet TCP/IP NOM, enhanced firmware, RSTP support
• 140NOM21100: Modbus Plus network option module, single-port MB+ interface
• 140NOM21200: Modbus Plus NOM, dual-port MB+ for redundant network topologies

CPU / Controller Modules

• 140CPU65150: Quantum CPU, 1024 KB user memory, Modbus Plus + Ethernet ports integrated
• 140CPU65160: Quantum CPU, 7 MB user memory, dual Ethernet, hot standby capable
• 140CPU67160: Quantum CPU, safety-rated variant, SIL 2 capable with TSXSCY21601 coprocessor
• 140CPU31110: Quantum CPU, entry-level, 256 KB memory, Modbus serial port only

Digital I/O Modules

• 140DAI74000: 32-channel 24 VDC digital input module, sink type
• 140DAO84000: 32-channel 24 VDC digital output module, source type, 0.5 A per channel
• 140DDI35300: 16-channel 125 VDC digital input module, isolated
• 140DDO35300: 16-channel 125 VDC digital output module, relay contact

Analog I/O Modules

• 140ACI04000: 4-channel analog current input, 4–20 mA, 12-bit resolution
• 140ACO02000: 2-channel analog current output, 4–20 mA, 12-bit resolution
• 140AVI03000: 4-channel analog voltage input, ±10 V / 0–10 V selectable

Power Supply Modules

• 140CPS11420: Quantum power supply, 115/230 VAC input, 5 VDC / 8 A output
• 140CPS21400: Quantum power supply, 24 VDC input, 5 VDC / 8 A output, redundancy-ready

Sourcing Hard-to-Find & Obsolete Quantum Parts

The Modicon Quantum platform has been in active service for over 30 years. Many early-generation modules — including the 140CPU31110, 140NOM21100, and first-generation TCSEGDB variants — have been discontinued by Schneider Electric and are no longer available through standard distribution channels. DriveKNMS maintains a dedicated inventory of tested, refurbished, and new-surplus Quantum modules to support plant operators who cannot justify a full M580 migration within current maintenance budgets.

For the TCSEGDB23F24FA specifically, DriveKNMS provides: verified functional units with 12-month warranty, firmware version documentation, and compatibility confirmation against specific Unity Pro / Concept software versions. All sourced units are cross-referenced against Schneider Electric's official part number database to prevent counterfeit substitution. Customers operating in regulated industries (nuclear, oil & gas) receive full traceability documentation upon request.

Quality Control for the Quantum Range

Quantum backplane and communication modules require specialized test procedures due to their multi-layer bus architecture (X-bus, Modbus Plus, Ethernet) and sensitivity to firmware version mismatches. DriveKNMS applies the following protocol to all TCSEGDB23F24FA and related Quantum communication modules:

• Visual inspection: PCB, connector pins, conformal coating integrity (where applicable)
• Power-on test: 5 VDC rail verification, LED status confirmation (RUN, ERR, ACT indicators)
• Ethernet connectivity test: Link establishment at 10/100 Mbps, TCP connection count verification up to rated maximum
• Modbus TCP functional test: Read/write register operations via port 502 using reference PLC simulator
• Firmware version audit: Confirmation of installed firmware against Schneider Electric release notes
• Burn-in cycle: 48-hour continuous operation under load prior to shipment