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CX8191 | Embedded PC with BACnet/IP

CX8191 | Embedded PC with BACnet/IP

CX8191 | Embedded PC with BACnet/IP

Power LEDs
E-bus or K-bus
Input for
power contacts
Power contacts
Front flap
Ethernet port
Ethernet RJ45 (switched)
Ethernet RJ45 (switched)
Address selector
CX8191 | Embedded PC with BACnet/IP

CX8191 | Embedded PC with BACnet/IP

Building Automation – News and Updates

Building Automation – News and Updates

The CX8191 is a control system with a switched Ethernet port. It supports the BACnet protocol. E-bus or K-bus terminals can be attached as required; the CX8191 automatically recognizes the type of I/O system connected during the start-up phase.

The control system is programmed with TwinCAT 3 via the fieldbus interface or the additional Ethernet interface. TwinCAT 3 licenses must be ordered via the TwinCAT 3 price list. The BACnet license is already installed on the device and does not need to be ordered separately.

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.

In conjunction with the EL6861 BACnet-MS/TP terminals, the CX8191 can act as a router to MS/TP networks including support for several MS/TP networks.

Further TwinCAT 3 functions and protocols are available for the CX8191, for example OPC UA, MQTT, Modbus TCP or Modbus RTU. All functions and protocols can be found in the TwinCAT product finder if you set the filter under TwinCAT 3 platform level to P20.

The CX8191 is a virtually universal device that can be used very flexibly, from control tasks through to gateway functions.

Product status:

regular delivery

Product information

Technical dataCX8191
ProcessorARM Cortex™-A9, 800 MHz (TC3: 20)
Number of cores1
Flash memoryslot for microSD card, 512 MB included (expandable)
Main memory512 MB DDR3 RAM (not expandable)
Persistent memory1-second UPS (for 1 MB persistent data)
Interfaces1 x RJ45 10/100 Mbit/s, 1 x bus interface
Bus interface2 x RJ45 (switched)
Data transfer rates100 Mbit/s
Diagnostics LED1 x TC status, 1 x WD, 1 x error
Clockinternal battery-backed clock for time and date (battery behind the front flap, exchangeable)
Operating systemWindows Embedded Compact 7
Control softwareTwinCAT 3 runtime (XAR)
I/O connectionE-bus or K-bus, automatic recognition
Power supply24 V DC (-15 %/+20 %)
Current supply E-bus/K-bus2 A
Max. power consumption4 W
Max. power consumption (with loading UPS)9 W
Dimensions (W x H x D)71 mm x 100 mm x 73 mm
Weightapprox. 230 g
Operating/storage temperature-25…+60 °C/-40…+85 °C
Relative humidity95 %, no condensation
Vibration/shock resistanceconforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emissionconforms to EN 61000-6-2/EN 61000-6-4
Protection ratingIP20
Approvals/markingsCE, UL
TwinCAT 3 platform levelEconomy (20); please see here for an overview of all the TwinCAT 3 platform level
CX1900-01231 GB microSD card, instead of 512 MB microSD card
CX1900-01252 GB microSD card, instead of 512 MB microSD card
CX1900-01274 GB microSD card, instead of 512 MB microSD card
CX1900-01298 GB microSD card, instead of 512 MB microSD card
CX1900-013116 GB microSD card, instead of 512 MB microSD card
CX1900-0102Spare battery suitable for CX10x0, CX81x0, CX5xxx, CX90x0, CX20xx
– lithium button cell type CR2032, 3V/225 mAh
– follow polarity when installing
CX1900-0122512 MB microSD card
CX1900-01241 GB microSD card
CX1900-01262 GB microSD card
CX1900-01284 GB microSD card
CX1900-01308 GB microSD card
CX1900-013216 GB microSD card

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