![CX7031 | Embedded PC for PROFIBUS slave](https://multimedia.beckhoff.com/media/cx7031__web_preview.png)
The CX7031 Embedded PC has an Arm® Cortex®-M7 single-core processor with 480 MHz. In the basic configuration, the CX7031 has a slot for a microSD card and an Ethernet interface. As a special feature, the CX7000 series has eight integrated multi-functional inputs as well as four integrated multi-functional outputs. The CX7031 has a PROFIBUS slave interface.
E-bus or K-bus terminals can be attached as required; the CX7031 automatically recognizes the type of I/O system connected during the start-up phase. The control system is programmed with TwinCAT 3 via the Ethernet interface.
Product status:
regular delivery
Product information
Technical data | CX7031 |
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Processor | Arm® Cortex®-M7, 480 MHz |
Number of cores | 1 |
Flash memory | 512 MB microSD (optionally 1 GB, 2 GB, 4 GB or 8 GB) |
Main memory | 32 MB SDR (internal, not expandable) |
Number of inputs | 8 multi-functional inputs (24 V DC) |
Number of outputs | 4 multi-functional outputs (24 V DC, 0.5 A, 1-wire technique) |
NOVRAM | 4 kB |
Interfaces | 1 x RJ45 10/100 Mbit/s, 1 x USB, 1 x bus interface |
Cooling | passive |
Bus interface | D-sub socket, 9-pin, 1 x PROFIBUS slave |
Data transfer rates | 9.6 kbaud…12 Mbaud |
Diagnostics LED | 1 x TC status, 1 x bus status, 1 x diagnostics |
Clock | internal, capacitor-buffered real-time clock for time and date (storage capacity > 21 days) |
Operating system | TwinCAT/RTOS |
Control software | TwinCAT 3 runtime (XAR) |
I/O connection | E-bus or K-bus, automatic recognition |
Power supply | 24 V DC (-15%/+20%) |
Current supply E-bus/K-bus | 1.5 A |
Max. power consumption | < 2.0 W |
Max. power consumption E-bus/K-bus | 7.5 W |
Dimensions (W x H x D) | 49 mm x 100 mm x 73 mm |
Weight | 142 g |
Operating/storage temperature | -25…+60°C/-40…+85°C |
Relative humidity | 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 |
Protection rating | IP20 |
Included TwinCAT 3 Function | TC1000 TwinCAT 3 ADS, TC1100 TwinCAT 3 I/O, TC1200 TwinCAT 3 PLC, TF4100 TwinCAT 3 Controller Toolbox, TF4110 TwinCAT 3 Temperature Controller, TF6255 TwinCAT 3 Modbus RTU, TF6340 TwinCAT 3 Serial Communication, TF6701 TwinCAT 3 IoT Communication (MQTT), TF6730 TwinCAT 3 IoT Communicator |
Approvals/markings | CE, UL |
TwinCAT 3 platform level | Basic (10); please see here for an overview of all the TwinCAT 3 platform level |
Technical data | Multi-functional I/Os | Digital input |
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Connection technology | 1-wire |
Nominal voltage | 24 V DC (-15%/+20%) |
Specification | EN 61131-2, type 3 |
“0” signal voltage | -3…+5 V |
“1” signal voltage | 11…30 V |
Input filter | configurable, default: 3 ms, min.: 10 µs |
Technical data | Multi-functional I/Os | Digital output |
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Connection technology | 1-wire |
Nominal voltage | 24 V DC (-15%/+20%) |
Load type | ohmic, inductive, lamp load |
Switching times | TON: typ. 20 µs, TOFF: 10 µs |
Short-circuit current | typ. < 2 A |
Breaking energy | < 150 mJ/channel |
Technical data | Multi-functional I/Os | Counter |
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Connection technology | 1 x up/down counter, 1 x up or down counter |
Nominal voltage | 24 V DC (-15%/+20%) |
Specification | EN 61131-2, type 3 |
“0” signal voltage | -3…+5 V |
“1” signal voltage | 11…30 V |
Limit frequency | up/down counter: 20 kHz, up counter: 100 kHz |
Counter depth | 32 bit |
Max. output current | 24 V/0.5 A (short-circuit proof) |
Special features | set counter value, switch output, reload value |
Technical data | Multi-functional I/Os | Encoder |
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Technology | incremental encoder interface |
Nominal voltage | 24 V DC (-15%/+20%) |
Specification | EN 61131-2, type 3 |
Encoder connection | 1 x A, B: 24 V single-ended connection |
Additional inputs | latch input, 24 V DC |
Limit frequency | 250,000 increments (with 4-fold evaluation), equivalent 62.5 kHz |
Counter depth | 32 bit |
Quadrature decoder | 4-fold evaluation |
Max. output current | 24 V/0.5 A (short-circuit proof) |
Special features | latch function, software gate, set counter value, switch output, reload value |
Technical data | Multi-functional I/Os | Analog input |
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Number of inputs | 2 |
Technology | single-ended |
Signal voltage | 0…10 V |
Internal resistance | 500 kΩ |
Input filter limit frequency | 2 kHz |
Resolution | 12 bit (16 bit presentation) |
Measurement error/uncertainty | < ±0.3% (relative to full scale value) |
Technical data | Multi-functional I/Os | Pulse width modulation |
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Connection technology | PWM output |
Number of outputs | 2 |
Nominal voltage | 24 V DC (-15%/+20%) |
Load type | ohmic, inductive, lamp load |
Max. output current | 24 V/0.5 A (short-circuit proof) |
Frequency | 15 Hz…100 kHz |
Duty factor | 0…100% (TON > 20 ns, TOFF > 200 ns) |
Short-circuit current | typ. < 2 A |
Special features | separate frequency can be set for each channel |
Options | |
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CX1900-0123 | 1 GB microSD card, instead of 512 MB microSD card* |
CX1900-0125 | 2 GB microSD card, instead of 512 MB microSD card* |
CX1900-0127 | 4 GB microSD card, instead of 512 MB microSD card* |
CX1900-0129 | 8 GB microSD card, instead of 512 MB microSD card* |
CX1900-0131 | 16 GB microSD card, instead of 512 MB microSD card* |
Accessories | |
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CX1900-0122 | 512 MB microSD card |
CX1900-0124 | 1 GB microSD card |
CX1900-0126 | 2 GB microSD card |
CX1900-0128 | 4 GB microSD card |
CX1900-0130 | 8 GB microSD card |
CX1900-0132 | 16 GB microSD card |
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