Schneider Electric Modicon M340 BMX Modules: BMXFTB2010

Technical Dossier

Product Details And Specifications

Schneider Electric Modicon M340 BMX Series: Comprehensive Module Range and Technical Overview

The Schneider Electric Modicon M340 platform, identified by the BMX prefix, is a mid-range programmable automation controller (PAC) deployed across global heavy industry sectors including petrochemical refineries, nuclear auxiliary systems, water treatment infrastructure, and continuous process manufacturing. First introduced in the mid-2000s as a successor to the Modicon Quantum and TSX Premium lines for mid-tier applications, the M340 platform achieved widespread adoption due to its compact DIN-rail form factor, dual-port Ethernet capability, and native Unity Pro programming environment compatibility. Installed base estimates place M340 systems in tens of thousands of facilities across Europe, Asia-Pacific, and the Americas, making long-term spare parts availability a critical operational concern for plant maintenance teams.

The Evolution of BMX Architecture

The BMX architecture was designed around a passive backplane bus system supporting up to 12 I/O slots per rack (BMXXBP••00 series). Early hardware revisions (pre-2010) used a proprietary X Bus for inter-module communication. From 2012 onward, Schneider introduced dual-port Ethernet embedded in CPU modules (BMXP342020H and later), enabling Device Level Ring (DLR) and daisy-chain topologies without external switches. The terminal block interface — exemplified by the BMXFTB2010 — standardized the 20-pin screw-clamp connection across analog and digital I/O modules, providing field-wiring continuity during module replacement without rewiring. Compatibility constraints exist between early backplane revisions and later high-density I/O modules; firmware version alignment between CPU and coprocessor modules is mandatory. The platform entered the mature/sustaining phase of its lifecycle circa 2020, with Schneider Electric committing to spare parts availability through at least 2030 under its Green Premium program.

Modicon M340 BMX Full Catalog & Functionalities (SKU List)

CPU / Controller Modules

• BMXP341000: M340 CPU, 256 KB application memory, single Ethernet port, Unity Pro compatible.
• BMXP342000: M340 CPU, 512 KB application memory, single Ethernet port, enhanced instruction set.
• BMXP342010: M340 CPU, 512 KB, CANopen master port integrated, for distributed I/O topologies.
• BMXP342020: M340 CPU, 1 MB application memory, dual Ethernet ports, Modbus TCP / EtherNet/IP.
• BMXP342020H: M340 CPU Hot Standby variant, redundant Ethernet, for high-availability process control.
• BMXP3420302: M340 CPU, 4 MB memory, dual Ethernet, extended data logging and web server functions.

Digital Input Modules

• BMXDDI1602: 16-channel 24 VDC digital input module, sink/source compatible, standard density.
• BMXDDI3202K: 32-channel 24 VDC digital input, high-density, conformal coated for harsh environments.
• BMXDAI1602: 16-channel 100–120 VAC digital input module for legacy AC field devices.

Digital Output Modules

• BMXDDO1602: 16-channel 24 VDC transistor output, 0.5 A per channel, source type.
• BMXDRA0805: 8-channel relay output module, 5 A per channel, NO contacts, 24–240 VAC/VDC.

Analog I/O Modules

• BMXAMI0410: 4-channel analog input, 4–20 mA / 0–10 V, 16-bit resolution.
• BMXAMI0800: 8-channel analog input, current/voltage configurable per channel, 16-bit.
• BMXAMO0210: 2-channel analog output, 4–20 mA, 16-bit resolution, short-circuit protected.
• BMXAMO0410: 4-channel analog output, 4–20 mA / 0–10 V selectable, 16-bit.

Communication & Specialty Modules

• BMXNOE0100: Ethernet TCP/IP communication module, 10/100 Mbps, for non-CPU-slot network expansion.
• BMXNOE0110: Ethernet module with embedded web server and FTP data logging capability.
• BMXEIA0100: INTERBUS communication module for legacy fieldbus integration.

Power Supply Modules

• BMXCPS2000: 100–240 VAC / 24 VDC input power supply, 20 W output for M340 rack.
• BMXCPS3500: 100–240 VAC input, 35 W, for fully populated 12-slot racks with high-density I/O.

Terminal Block & Accessories

• BMXFTB2010: 20-pin screw-clamp terminal block, field-wiring interface for M340 I/O modules, removable without rewiring.
• BMXFTB2000: 20-pin spring-clamp terminal block variant, vibration-resistant alternative to BMXFTB2010.
• BMXXBP0400: 4-slot M340 backplane rack, passive X Bus, DIN-rail or panel mount.
• BMXXBP0800: 8-slot M340 backplane rack.
• BMXXBP1200: 12-slot M340 backplane rack, maximum configuration for single-rack M340 system.

Sourcing Hard-to-Find & Obsolete BMX Parts

DriveKNMS maintains a dedicated inventory program for Modicon M340 BMX series components, with particular focus on modules that have transitioned to limited availability or end-of-commercialization status. For terminal blocks such as the BMXFTB2010 and BMXFTB2000, DriveKNMS holds buffer stock sourced from authorized distribution channels and decommissioned system buybacks. For CPU modules including early BMXP341000 and BMXP342000 variants, DriveKNMS provides tested surplus units with full functional verification. All sourced components are cross-referenced against Schneider Electric's product lifecycle database to confirm authenticity and revision compatibility. Customers requiring long-term maintenance agreements (LTMAs) for M340 platforms beyond Schneider's standard support window can contact DriveKNMS for multi-year supply contracts covering critical spare modules.

Quality Control for the BMX Range

The Modicon M340 BMX series presents specific quality verification requirements due to its backplane bus architecture and firmware-dependent module initialization. DriveKNMS applies the following test protocol to all BMX inventory: (1) Visual inspection for backplane connector pin integrity and PCB corrosion on all I/O and CPU modules. (2) Powered functional test using a BMXXBP0400 reference rack with a known-good BMXP342020 CPU, verifying module recognition and X Bus communication handshake. (3) For analog modules (BMXAMI, BMXAMO series), calibration verification against NIST-traceable reference signals at 0%, 50%, and 100% of rated input/output range. (4) For terminal blocks including BMXFTB2010, contact resistance measurement across all 20 pins using a four-wire milliohm meter; acceptance threshold <10 mΩ per contact. (5) Firmware revision logging: CPU modules are documented with installed firmware version to ensure compatibility disclosure to the end customer. All test records are retained and available upon request.

© 2026 DriveKNMS. All trademarks belong to their respective owners. Specifications are for reference only and subject to change without notice. Verify all parameters against official documentation before installation.