{"id":"beckhoff-cx8090","model_id":"CX8090","name":"Beckhoff CX8090","summary":"The Beckhoff CX8090 is a control system with an Arm9 processor running Windows Embedded CE 6 and TwinCAT 2 PLC. It connects to K-bus or E-bus I/O terminals, which it detects automatically at startup, and supports Modbus TCP plus Ethernet and TCP/IP communication. It is programmed with TwinCAT through a fieldbus or Ethernet interface.","study_notes":["Product status is regular delivery but not recommended for new projects; the recommended alternative is CX8290.","Programming languages: IEC 61131-3; control software: TwinCAT 2 PLC; web visualization and web-based management are supported.","Flash memory is a microSD slot with 512 MB card included and optional expansion; main memory is 64 MB DDR2 RAM and is not expandable.","Includes an integrated 1-second UPS with 1 MB on the microSD card.","Bus interface provides 2 x RJ45 switched ports at 100 Mbit/s; I/O connection is E-bus or K-bus with automatic recognition.","Interfaces include 1 x RJ45 10/100 Mbit/s, 1 x USB device behind the front flap, and 1 x bus interface.","Dimensions are 64 mm x 100 mm x 73 mm; storage temperature range is -25…+85°C.","Relative humidity rating is 95%, no condensation.","Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27; EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4.","Supports ADS UDP/TCP and open TCP/IP-UDP/IP communication in addition to Modbus TCP.","Windows Embedded CE 6 extended support has ended; up-to-date security updates can no longer be provided.","Internal battery-backed clock for time and date; battery is behind the front flap and exchangeable."],"safety_notes":["Approvals/markings: CE, UL, ATEX, IECEx, cFMus.","ATEX marking: II 3G Ex nA IIC T4 Gc; II 3D Ex tc IIIC T135°C Dc.","IECEx marking: Ex nA IIC T4 Gc; Ex tc IIIC T135°C Dc.","cFMus marking: Class I, Division 2, Groups A, B, C, D; Class I, Zone 2, AEx ec IIC T4 Gc."],"sources":[{"url":"https://www.beckhoff.com/en-en/products/ipc/embedded-pcs/cx8000-arm9/cx8090.html","title":"Embedded PC with Arm9™ and 2-port Ethernet switch","accessed":"2026-10-25"}],"verification":{"status":"source_checked","checked_at":"2026-10-25","values":9,"method":"llm_source_check"},"updated_at":"2026-10-25","type":"hardware","spec":{"category":"plc","manufacturer":"beckhoff","controllers":[],"weight_kg":0.18,"processor":"Arm9™, 400 MHz","supply_voltage":"24 V DC (-15%/+20%)","power_consumption_kw":0.003,"ip_rating":"IP20","operating_temp_min_c":0,"operating_temp_max_c":55,"joints":[],"protocols":["modbus-tcp"],"standards":[],"error_codes":[]},"url":"https://machineschema.com/hardware/beckhoff-cx8090","license":"https://creativecommons.org/licenses/by/4.0/"}