BECKHOFF CX8091 Embedded PC with BACnet/IP or OPC UA Instructions
- June 17, 2024
- BECKHOFF
Table of Contents
CX8091 | Embedded PC with BACnet/IP or OPC UA
CX8091 Embedded PC with BACnet/IP or OPC UA
Product status: regular delivery
The CX8091 is a control system with a switched Ethernet port. It supports
either the BACnet or OPC UA protocols.
Simultaneous use is not recommended due to the small memory. K-bus or E-bus
terminals can be attached as required; the CX8091 automatically recognizes the
type of I/O system connected during the start-up phase. The control system is
programmed with TwinCAT 2 via the fieldbus interface or the additional Ethernet
interface.
BACnet (Building Automation Control Network) is a standardized, manufacturer-
independent communication protocol for building automation. Areas of
application include HVAC, lighting control, safety and fire alarm technology.
The TwinCAT OPC UA Server provides the functionality of the OPC Unified
Architecture (UA) specification. In addition to data access techniques UA also
specifies the data coding and the transport protocols.
Product information
Technical data
| Technical data | CX8091 |
|---|---|
| Processor | ARM9, 400 MHz |
| Number of cores | 1 |
| Flash memory | 512 MB microSD (optionally expandable) |
| Main memory | 64 MB DDR2 RAM (not expandable) |
| Persistent memory | 1-second UPS (for 1 MB persistent data) |
CX8091
| Web visualization | yes |
|---|---|
| Online change | yes |
| Up/down load code | yes/yes |
| Interfaces | 1 x RJ45 10/100 Mbit/s, 1 x USB device (behind the front flap), 1 x |
bus interface
Bus interface| 2 x RJ45 (switched)
Diagnostics LED| 1 x TC status, 1 x WD, 1 x error
Clock| internal battery-backed clock for time and date (battery behind the
front flap, exchangeable)
Operating system| Windows Embedded CE 6
Control software| TwinCAT 2 PLC
I/O connection| E-bus or K-bus, automatic recognition
Web-based management| yes
Current supply E-bus/K-bus| 2:00 AM
Max. power consumption| 3 W
Dimensions (W x H x D)| 64 mm x 100 mm x 73 mm
Weight| approx. 180 g
Operating/storage temperature| 0…+55 °C/-25…+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
Approvals/markings| CE, UL, ATEX, IECEx, cFMus
Ex marking| ATEX:
II 3 G Ex nA IIC T4 Gc
II 3 D Ex tc IIIC T135 °C Dc
IECEx:
Ex nA IIC T4 Gc
Ex tc IIIC T135 °C Dc
cFMus:
Class I, Division 2, Groups A, B, C, D
Class I, Zone 2, AEx ec IIC T4 Gc
Options
| 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 |
Accessories
| 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 |
Technical changes reserved
As of 16.11.2023 | Site 2 of
3https://www.beckhoff.com/cx8091