{"product_id":"bmxp342020-modicon-m340-processor-cpu-module-schneider-electric","title":"BMXP342020 Modicon M340 Processor CPU Module Schneider Electric","description":"\u003ch3 style=\"color: #0f172a;\"\u003eCore Architecture \u0026amp; System Capacities\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand \u0026amp; System Platform:\u003c\/strong\u003e \u003cstrong\u003e\u003cspan style=\"color: #d9534f;\"\u003eSchneider Electric\u003c\/span\u003e\u003c\/strong\u003e \u003cstrong\u003e\u003cspan style=\"color: #0275d8;\"\u003eModicon M340\u003c\/span\u003e\u003c\/strong\u003e Automation Series\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCPU Reference:\u003c\/strong\u003e \u003cstrong\u003e\u003cspan style=\"color: #d9534f;\"\u003eBMXP342020\u003c\/span\u003e\u003c\/strong\u003e High-Performance Processor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRack Infrastructure:\u003c\/strong\u003e Supports up to 4 racks and 11 slots across multi-rack topologies\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiscrete I\/O Processing:\u003c\/strong\u003e 1,024 multi-rack \/ 704 single-rack maximum capacity\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalog I\/O Processing:\u003c\/strong\u003e 256 multi-rack \/ 66 single-rack maximum capacity\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication Channels:\u003c\/strong\u003e 36 dedicated function-specific channels for motion and counting\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExecution Speeds:\u003c\/strong\u003e 0.12 µs Boolean execution; 8.1 Kinst\/ms at 100% Boolean workload\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOn-Board Memory:\u003c\/strong\u003e 4,096 kB internal RAM (3,584 kB code\/constants, 256 kB data)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMemory Backup Unit:\u003c\/strong\u003e Supplied \u003cstrong\u003e\u003cspan style=\"color: #0275d8;\"\u003eBMXRMS008MP\u003c\/span\u003e\u003c\/strong\u003e memory card for application storage and Class B10 Web server hosting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #0f172a;\"\u003eIntegrated Communications \u0026amp; Technical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"width: 100%; border-collapse: collapse; border-color: #cbd5e1;\"\u003e\n  \u003ctr style=\"background-color: #f1f5f9;\"\u003e\n    \u003ctd style=\"width: 35%;\"\u003e\u003cstrong\u003eEmbedded Ethernet Port\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003e1 x RJ45 (10BASE-T\/100BASE-TX) 10\/100 Mbit\/s twisted pair\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eEmbedded Serial Interfaces\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003e1 x RJ45 multi-protocol (RS232C \/ RS485) Modbus RTU\/ASCII \u0026amp; Character mode\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f1f5f9;\"\u003e\n    \u003ctd\u003e\u003cstrong\u003eProgramming Interface\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003e1 x USB 2.0 port operating at 12 Mbit\/s full-speed\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eNetwork Services\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003eModbus TCP messaging, Web Server (Data Editor, Rack Viewer), Bandwidth Management, SNMP\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f1f5f9;\"\u003e\n    \u003ctd\u003e\u003cstrong\u003eExpansion Modules Capacity\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003eUp to 2 x Ethernet modules and 4 x AS-Interface communication modules\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003ePower Supply \u0026amp; Consumption\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003eInternal backplane supply via rack; 95 mA draw at 24V DC (0.205 kg net weight)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f1f5f9;\"\u003e\n    \u003ctd\u003e\u003cstrong\u003eEnvironmental Compliance\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003eHazardous Location Class I Div 2, Class Gx\/3C4 resistant, IP20 rated enclosure\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eSafety \u0026amp; Marine Certifications\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003eUL 61010-2-201, CSA C22.2, EN 61131-2, CE, RCM, EAC, Merchant Navy, IACS E10\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"color: #0f172a;\"\u003eTarget Machinery \u0026amp; Industrial Application Environments\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #d9534f;\"\u003eBMXP342020\u003c\/span\u003e\u003c\/strong\u003e standalone CPU serves as a primary automation controller for complex machine control loops and distributed infrastructure systems.\u003c\/p\u003e\n\n\u003cp\u003eWith built-in Ethernet, Modbus serial, and USB ports, this unit integrates smoothly into water treatment plants, packaging lines, material handling conveyors, power generation skids, and HVAC pumping networks.\u003c\/p\u003e\n\n\u003cp\u003eClass I Division 2 and marine certifications ensure reliable continuous operation in harsh environments subject to elevated vibration, electrical noise (EN\/IEC 61850-3), or wide thermal fluctuations (0°C to 60°C).\u003c\/p\u003e\n\n\u003ch3 style=\"color: #0f172a;\"\u003eReal-Time Status Monitoring \u0026amp; Diagnostic LEDs\u003c\/h3\u003e\n\u003cp\u003eFront-panel LED arrays on the \u003cstrong\u003e\u003cspan style=\"color: #d9534f;\"\u003eBMXP342020\u003c\/span\u003e\u003c\/strong\u003e module provide immediate physical diagnostics without needing external software connections:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRUN LED (Green):\u003c\/strong\u003e Solid illumination confirms active logic execution and normal program cycle state.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eERR LED (Red):\u003c\/strong\u003e Signals internal processor hardware faults, execution exceptions, or system stop conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eI\/O LED (Red):\u003c\/strong\u003e Illuminates during backplane bus errors, missing rack cards, or field I\/O line faults.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCARD ERR LED (Red):\u003c\/strong\u003e Alerts engineers to missing, corrupt, or incompatible memory cards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eETH ACT \/ ETH STS \/ ETH 100:\u003c\/strong\u003e Green and red LEDs track active Ethernet packet transmission, network connection state, and 100 Mbps data rates.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSER COM LED (Yellow):\u003c\/strong\u003e Flashes dynamically to indicate active Modbus RTU\/ASCII serial communication.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #0f172a;\"\u003eGlobal PLC Spare HUB's Insight\u003c\/h3\u003e\n\u003cp\u003eFrom practical engineering field experience, the \u003cstrong\u003e\u003cspan style=\"color: #d9534f;\"\u003eBMXP342020\u003c\/span\u003e\u003c\/strong\u003e CPU offers an extremely flexible control core for medium-scale automation projects. However, field technicians often encounter start-up issues due to the memory card configuration. The CPU requires a formatted \u003cstrong\u003e\u003cspan style=\"color: #0275d8;\"\u003eBMXRMS008MP\u003c\/span\u003e\u003c\/strong\u003e card installed during power-up to retain user programs and web server settings after power cycles. Additionally, when using the non-isolated RS485 serial port over long field runs (up to 1000m), using a external line isolator prevents ground potential differences from causing communication drops or port damage on high-noise factory floors.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #0f172a;\"\u003eWhy Buy From Global PLC Spare HUB?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e20+ Years Industrial Experience:\u003c\/strong\u003e Deep technical knowledge in automation spare parts supply and controller lifecycle management.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGlobal Shipping Support:\u003c\/strong\u003e Rapid international delivery using premium express channels (\u003cstrong\u003eFedEx\u003c\/strong\u003e, \u003cstrong\u003eUPS\u003c\/strong\u003e, and \u003cstrong\u003eDHL\u003c\/strong\u003e).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e24-48 Hour Dispatch:\u003c\/strong\u003e In-stock inventory processed quickly to minimize plant downtime.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e12-Month Warranty:\u003c\/strong\u003e Every unit is backed by a full 1-year replacement warranty policy.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePre-Shipment Technical Verification:\u003c\/strong\u003e Comprehensive hardware testing on rack beds prior to packing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLegacy \u0026amp; Obsolete System Support:\u003c\/strong\u003e Reliable sourcing for hard-to-find active and out-of-production control modules.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #0f172a;\"\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What cable limits apply when connecting field serial devices to the non-isolated RS485 port on the \u003cspan style=\"color: #d9534f;\"\u003eBMXP342020\u003c\/span\u003e?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Direct non-isolated cable runs must stay under 10 meters (32.8 ft). If your Modbus network extends up to 1000 meters (3280 ft), install an inline RS485 optic isolator to maintain signal integrity and protect CPU hardware.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Does the \u003cspan style=\"color: #d9534f;\"\u003eBMXP342020\u003c\/span\u003e processor retain user programs without an active rack power supply?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes. Non-volatile flash backup on the supplied memory card retains programs, constants, and symbols indefinitely without relying on internal lithium batteries.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do engineers access embedded web diagnostics on this processor?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Connect a PC to the RJ45 Ethernet port, open a web browser, and enter the assigned IP address to load the built-in Rack Viewer and Data Editor pages.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Engineering Experience Tip: Why does the \"CARD ERR\" light flash red after replacing a processor card?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: In field situations, this occurs when the memory card contains program binaries compiled under a different firmware version than the host CPU. Updating the CPU firmware via USB or re-formatting the SD card via EcoStruxure Control Expert resolves this mismatch.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Hardware Selection Guide: How does the \u003cspan style=\"color: #d9534f;\"\u003eBMXP342020\u003c\/span\u003e compare with lower-tier M340 CPUs like the BMXP341000?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Choose the BMXP342020 when your architecture demands built-in Ethernet connectivity, 4-rack expansion capacity (up to 1024 discrete I\/O points), and advanced web server capabilities without adding separate network expansion cards.\u003c\/p\u003e","brand":"Schneider Electric","offers":[{"title":"Default Title","offer_id":45013982445750,"sku":"BMXP342020","price":172.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/BMXP342020_33155fb7-9a1e-4b71-8019-be1a7fb85f9a.jpg?v=1785218812","url":"https:\/\/www.plcsparehub.com\/products\/bmxp342020-modicon-m340-processor-cpu-module-schneider-electric","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}