{"product_id":"cx5140-n031-0002-beckhoff-embedded-pc-intel-atom-with-rs485","title":"CX5140-N031-0002 BECKHOFF Embedded PC Intel Atom® with RS485","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCX5140-N031-0002 (CX5140-N031-0002)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance Embedded PC from the Beckhoff CX5100 series, specifically tailored for sophisticated industrial automation and communication tasks. Powered by a multi-core Intel Atom® processor, this fanless controller provides the computational overhead required for complex PLC logic, motion control, and high-level visualization. This specific variant is equipped with the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eN031\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoptional interface, providing a dedicated\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRS485\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserial communication port. Engineered for durability on the plant floor, the CX5140 excels in decentralized control architectures where high-speed E-bus processing and robust serial connectivity are essential for integrating legacy field devices or specialized sensors into an EtherCAT-based system.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCX5140-N031-0002\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003earchitecture is optimized for real-time performance and modularity. The core processing power is delivered by an Intel Atom® CPU, supported by a fast internal bus and extensive diagnostic capabilities. The integrated\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eN031\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003einterface features a 9-pin D-sub socket, hardware-configured for RS485 communication. This interface is set as a \"drop point\" without echo and with termination switched off, making it ready for integration into existing RS485 network chains. The module supports direct connection to Beckhoff I\/O terminals (E-bus or K-bus) and features multiple connectivity options, including dual independent Gigabit Ethernet ports and a multi-option interface, all housed in a rugged, thermally-optimized metal chassis.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCX5140-N031-0002\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBECKHOFF\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProcessor\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIntel Atom® (Multi-core)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInterface Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRS485 (N031 Option)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eConnection\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eD-sub socket, 9-pin\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRS485 Config\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDrop point, No Echo, Termination Off\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCooling\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFanless \/ Passive Heat Dissipation\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eExpansion\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBeckhoff E-bus \/ K-bus terminals\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating System\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eWindows Embedded \/ TwinCAT 3 (Typical)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShipping Weight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.00 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProtection Rating\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP20\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I enable the termination resistor for the RS485 interface?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCX5140-N031-0002\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis shipped with termination \"Off.\" If this unit is the last device in your RS485 chain, you must use a D-sub connector with an integrated termination resistor or enable it via software\/hardware jumpers depending on the specific internal build of the N031 module.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this Embedded PC capable of running TwinCAT 3?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The CX5140 series is a flagship platform for TwinCAT 3. Its multi-core Intel Atom® processor is ideally suited for distributing PLC, Motion, and HMI tasks across separate CPU cores for maximum deterministic performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the significance of the \"Without Echo\" configuration for RS485?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\"Without Echo\" means the transceiver does not read back the data it has just transmitted. This is standard for 2-wire half-duplex RS485 communication, preventing the processor from receiving its own transmitted bytes as incoming data, which simplifies the communication driver logic.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThermal Management and Mounting Position:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe CX5140 is a fanless device and relies on natural convection. It must be mounted horizontally on a DIN rail (with the cooling fins running vertically). Ensure a minimum clearance of 30 mm above and below the unit. In environments exceeding 45 Celsius, verify that the airflow within the cabinet is sufficient to prevent the Intel Atom® processor from thermal throttling.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRS485 Serial Wiring and Grounding:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen wiring the D-sub 9-pin connector for RS485, use high-quality twisted-pair shielded cables. Since this unit is configured as a \"drop point,\" ensure the cable shield is grounded at the entry point of the cabinet to mitigate electromagnetic interference (EMI). Avoid routing the serial cable parallel to high-voltage motor power leads to prevent data corruption on the RS485 bus.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSystem Startup and Power Supply:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe CX5140 requires a stable 24 VDC power supply. Use a dedicated power source for the Embedded PC that is separate from the inductive load supply (valves\/motors). This prevents voltage dips during heavy actuator switching from causing unplanned system reboots or data corruption on the internal storage media (CFast card).\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106640191851,"sku":"CX5140-N031-0002","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/cx5140-n031-0002-qgb5hfhs52t.png?v=1776244300","url":"https:\/\/www.plcprotech.com\/products\/cx5140-n031-0002-beckhoff-embedded-pc-intel-atom-with-rs485","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}