{"id":"beckhoff-cx8031","model_id":"CX8031","name":"Beckhoff CX8031","summary":"The CX8031 is a Beckhoff control system (embedded PC) with a PROFIBUS slave interface, one Ethernet port and a USB device port. It runs TwinCAT 2 PLC software on Windows Embedded CE 6 and accepts E-bus or K-bus terminals, whose type it recognises automatically at start-up. The PROFIBUS address is set with two rotary switches and the transmission rate is detected automatically up to 12 Mbaud.","study_notes":["Programming languages: IEC 61131-3; control software TwinCAT 2 PLC; programming is done via the additional Ethernet interface.","Bus interface is 1 x D-sub 9-pin socket with shielding; PROFIBUS address set via two rotary selection switches; automatic baud rate detection.","Ethernet interface is 1 x RJ45 10/100 Mbit/s; a USB device port sits behind the front flap.","I/O connection is E-bus or K-bus with automatic recognition; E-bus/K-bus current supply 2 A, max. E-bus/K-bus power consumption 10 W (5 V/max. 2 A).","Main memory 64 MB DDR2 RAM, not expandable; flash memory is a microSD slot with 512 MB card included, optionally expandable.","Integrated 1-second UPS with 1 MB on microSD card; UPS OCT-capable: no.","Internal battery-backed clock for time and date; battery behind the front flap and exchangeable.","Cooling is passive; dimensions 64 mm x 100 mm x 73 mm; weight approx. 180 g.","Web visualization and web-based management supported; online change supported; up/down load code yes/yes.","Storage temperature -25…+85 °C; relative humidity 95%, no condensation.","Product status: regular delivery, not recommended for new projects; recommended alternative CX8200.","PROFIBUS slave interface is described in the document but no PROFIBUS entry exists in the available protocol list."],"safety_notes":["Protection rating IP20.","Approvals/markings: CE, UL, ATEX, IECEx, cFMus.","ATEX marking: II 3G Ex nA IIC T4 Gc and II 3D Ex tc IIIC T135°C Dc.","IECEx marking: Ex nA IIC T4 Gc and 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.","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.","Permitted operating temperature range 0…55 °C.","Extended support for the operating system Microsoft Windows Embedded CE 6 has ended; up-to-date security updates can no longer be provided."],"sources":[{"url":"https://www.beckhoff.com/en-en/products/ipc/embedded-pcs/cx8000-arm9/cx8031.html","title":"Embedded PC with Arm9™ and PROFIBUS slave","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":"embedded_pc","manufacturer":"beckhoff","controllers":[],"weight_kg":0.18,"ethernet_ports":1,"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":[],"standards":[],"error_codes":[]},"url":"https://machineschema.com/hardware/beckhoff-cx8031","license":"https://creativecommons.org/licenses/by/4.0/"}