{"id":"beckhoff-cx7291","model_id":"CX7291","name":"Beckhoff CX7291","summary":"The Beckhoff CX7291 is an embedded PC in the CX7000 series with an Arm Cortex-A9 single-core processor at 720 MHz. It provides eight multi-functional digital inputs and four multi-functional outputs, a microSD card slot, an Ethernet interface, and a switched RJ45 bus interface for BACnet/IP. It runs TwinCAT/RTOS and is programmed with TwinCAT 3 over the Ethernet interface.","study_notes":["CX7000 series has eight integrated multi-functional inputs (24 V DC) and four integrated multi-functional outputs (24 V DC, 0.5 A, 1-wire connection technology).","E-bus or K-bus terminals can be attached; the CX7291 automatically recognizes the connected I/O system during start-up.","The control system is programmed with TwinCAT 3 via the Ethernet interface.","Operating system is TwinCAT/RTOS; control software is TwinCAT 3 runtime (XAR) from TwinCAT 3.1 Build 4026 (XAE).","Flash memory: slot for microSD card with 512 MB included, optionally expandable; main memory is 512 MB DDR3 RAM (not expandable).","Integrated 1-second UPS with 1 MB on microSD card; internal capacitor-buffered real-time clock stores time/date for more than 21 days.","Bus interface has 2 x RJ45 switched ports with BACnet/IP at 10/100/1000 Mbit/s; the separate interface includes 1 x RJ45 10/100/1000 Mbit/s.","Multi-functional I/O includes digital input EN 61131-2 type 3, digital output, counter (32-bit; 20 kHz up/down, 100 kHz up), incremental encoder interface (32-bit; 250,000 increments with 4-fold evaluation, 62.5 kHz), two analog inputs (0–10 V, 12-bit, 2 kHz filter), and two PWM outputs (15 Hz–100 kHz).","Included TwinCAT 3 functions: TC1000 ADS, TC1100 I/O, TC1200 PLC, TF4100 Controller Toolbox, TF4110 Temperature Controller, TF6255 Modbus RTU, TF6340 Serial Communication, TF6701 IoT Communication (MQTT), TF6730 IoT Communicator, TF6760 IoT HTTPS/REST, TF8020 BACnet/IP, TF8040 Building Automation.","TwinCAT 3 platform level: Basic (10).","Cooling is passive; diagnostics LEDs: 1 x TC status, 1 x WD, 1 x error.","Dimensions are 71 mm x 100 mm x 73 mm."],"safety_notes":["Approvals/markings: CE, UL.","EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4.","Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27.","Relative humidity: 95%, no condensation.","Storage temperature: -40…+85°C."],"sources":[{"url":"https://www.beckhoff.com/en-en/products/ipc/embedded-pcs/cx7000-arm-r-cortex-r/cx7291.html","title":"Embedded PC with Arm® Cortex®-A9, BACnet/IP and integrated I/Os","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":0.22,"processor":"Arm® Cortex®-A9, 720 MHz","supply_voltage":"24 V DC (-15%/+20%)","power_consumption_kw":0.004,"ip_rating":"IP20","operating_temp_min_c":-25,"operating_temp_max_c":60,"joints":[],"protocols":["mqtt"],"standards":[],"error_codes":[]},"url":"https://machineschema.com/hardware/beckhoff-cx7291","license":"https://creativecommons.org/licenses/by/4.0/"}