{"product_id":"beckhoff-cx2042-n031-0004-cx2000-series-basic-cpu-module","title":"Beckhoff CX2042-N031-0004 CX2000 Series Basic CPU Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eServing as a highly resilient processing hub for modular control architectures, the \u003cstrong\u003eBeckhoff CX2042-N031-0004\u003c\/strong\u003e basic CPU module handles complex PLC, motion control, and visualization tasks within industrial automation systems. This controller features an integrated \u003cstrong\u003eN031 serial interface option\u003c\/strong\u003e, physically broken out via a 9-pin D-sub socket. Designed specifically for reliable point-to-point or bus topologies, the serial interface is factory-configured as a \u003cstrong\u003efull duplex end point\u003c\/strong\u003e with \u003cstrong\u003einternal termination enabled\u003c\/strong\u003e. This unit facilitates seamless integration into existing serial bus networks while offering the computational performance of the CX2000 hardware platform.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModular Processing Unit:\u003c\/strong\u003e Engineered for direct integration into the modular CX2000 Embedded PC block system.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated Serial Option:\u003c\/strong\u003e Built-in N031 physical interface slot saves backplane space by avoiding external serial modules.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull Duplex End Point Configuration:\u003c\/strong\u003e Optimized for bidirectional, simultaneous transmit and receive operations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActive Bus Termination:\u003c\/strong\u003e Internal termination resistor circuitry is active, preventing signal reflections without external network components.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustrial Diagnostic LEDs:\u003c\/strong\u003e Built-in status indicators provide rapid, real-time diagnostic visibility of system and network performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Axis Motion Control:\u003c\/strong\u003e Coordinating complex high-speed positioning tasks via EtherCAT terminals.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLegacy System Integration:\u003c\/strong\u003e Linking modern control architectures directly to legacy sensors or readouts requiring RS422 protocol.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnclosed Control Cabinets:\u003c\/strong\u003e Heavy-duty manufacturing environments requiring localized high-performance computing on standard DIN rails.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDistributed SCADA Stations:\u003c\/strong\u003e Localized data processing and protocol translation on remote facility networks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; text-align: left; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #cbd5e0;\"\u003e\n        \u003cth style=\"padding: 12px; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 12px; font-weight: bold;\"\u003eSpecification Value\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px;\"\u003eBeckhoff Automation\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px;\"\u003eCX2042-N031-0004\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px; font-weight: bold;\"\u003eProduct Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px;\"\u003eBasic CPU Module\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px; font-weight: bold;\"\u003eInterface Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px;\"\u003eRS422 (N031 option)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px; font-weight: bold;\"\u003eConnector Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px;\"\u003e9-pin D-sub socket\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px; font-weight: bold;\"\u003eSerial Configuration\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px;\"\u003eFull duplex end point\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px; font-weight: bold;\"\u003eBus Termination\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px;\"\u003eOn (internally terminated)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px; font-weight: bold;\"\u003eSoftware Compatibility\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px;\"\u003eTwinCAT runtime environment\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px; font-weight: bold;\"\u003eSystem Interface\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px;\"\u003eDirect backplane bus connection\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px;\"\u003e3.0 kg (6.61 lbs)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px; font-weight: bold;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px;\"\u003eGermany\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; text-align: left; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #cbd5e0;\"\u003e\n        \u003cth style=\"padding: 12px; font-weight: bold;\"\u003eD-sub 9-Pin Number\u003c\/th\u003e\n        \u003cth style=\"padding: 12px; font-weight: bold;\"\u003eRS422 Full Duplex Function\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px;\"\u003ePin 2\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px;\"\u003eRxD+ (Receive Data +)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px;\"\u003ePin 3\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px;\"\u003eTxD+ (Transmit Data +)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px;\"\u003ePin 5\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px;\"\u003eGND (Signal Ground)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px;\"\u003ePin 7\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px;\"\u003eRxD- (Receive Data -)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 12px;\"\u003ePin 8\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px;\"\u003eTxD- (Transmit Data -)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThis controller is fully integrated into the CX2000 series ecosystem. If replacing a standard basic module or a module with an alternative interface such as the N030 (RS232) or N010 (DVI\/USB), verify all physical communication wiring beforehand. Be aware that substituting this module with a non-terminated model (such as an open point-to-point interface) will require external 120-ohm termination blocks to match line impedance.\u003c\/p\u003e\n\n\u003ch3\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eBecause this module utilizes the built-in \u003cstrong\u003e\"-0004\" active termination option\u003c\/strong\u003e, it must only be placed at the physical ends of your RS422 communication segment. Do not connect this device in the middle of a multi-drop RS422 bus loop, as the internal active termination will cause line reflections, signal degradation, and packet loss. Maintain proper spacing around the active fan cartridge of the CX2042 CPU to prevent thermal throttling inside high-density control panels.\u003c\/p\u003e\n\n\u003ch3\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen configuring communications within the \u003cstrong\u003eTwinCAT System Manager\u003c\/strong\u003e, assign the N031 option interface directly to your virtual COM port or map the register bytes directly to your PLC task. Always use twisted-pair, double-shielded copper cabling for the RS422 lines to prevent electromagnetic interference from surrounding variable frequency drives and high-voltage contactors. The shield should be terminated cleanly to the functional earth ground rail at only one end of the segment.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e Completely de-energize the entire control system cabinet before physical assembly, disassembly, or bus coupling. Confirm all residual charges have completely dissipated before handling the system bus contacts. Failure to do so can result in electrical shock, backplane bus damage, or erratic controller firmware corruption.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eMount the CPU module securely on a standard horizontal 35mm DIN rail (EN 60715) with the air vents clear of physical obstructions.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eAlign the side bus connectors with adjacent power modules or I\/O terminals, sliding them firmly together until they click into lock.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eConnect the pre-assembled RS422 communication cable to the D-sub 9 socket, fastening the retention screws on both sides to prevent loose contacts.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eApply DC control power to verify the status indicators. Initiate the system within TwinCAT for logical configuration.\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106587304299,"sku":"CX2042-N031-0004","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/cx2042-n031-0004-ccrgaym5s0v.png?v=1776244209","url":"https:\/\/www.plcprotech.com\/products\/beckhoff-cx2042-n031-0004-cx2000-series-basic-cpu-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}