Gateways and Bridges/Router

open up a variety of connection possibilities

 

With bridges and gateways CAN or CAN FD systems can be coupled or implemented over a larger area, devices without CAN can be connected to CAN systems or CAN systems can be coupled using different technologies, e.g. Bluetooth, Ethernet or PROFINET.

Gateways and Bridges

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Expand your system 

Bridges and gateways enable larger system expansions and increase the reliability of your system.

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Cloud connection

MQTT cloud connection enables remote monitoring and alarms (CAN@net NT).

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Save costs

Easier wiring and reduction of cables reduces the cost of your system.

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Action rules

Execution of various actions using event-triggered rules (CAN@net NT & CANbridge NT).

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Data manipulation

Filter and conversion functionality reduces network load and simplifies interconnection of various devices.

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Connection-friendly

Bridging of large distances, easy system access and retrofitting of old devices using Bluetooth, Ethernet, PROFINET, CAN and CAN FD.

CANbridge NT 200/420

Configurable CAN-to-CAN Bridge/Router with CAN FD Support

The CANbridge NT is offered in two versions, as CANbridge NT 200 with 2 classic CAN channels and as CANbridge NT 420 with 4 CAN channels, where 2 channels can be switched between CAN and CAN FD. 
Both devices allow the easy coupling of CAN (CAN FD) networks, including networks with different bit rates or frame formats (11/29 bit identifier). The bridges/routers have a powerful microcontroller that can perform message filtering, ID translation and data multiplexing (e.g. required for CAN FD to CAN message conversion), at this even bursts at higher data rates can be processed without message loss.

CANbridge NT 200/420

FEATURES

  • Up to 4 CAN (2 CAN FD) channels in one device
  • Powerful filter, ID translation, data mapping and multiplex functionality
  • Execution of actions using event-triggered "Action Rules"
  • Configurable security levels for device access (configuration or firmware upload)
  • Windows configuration tool for easy configuration via USB

BENEFITS

  • Easy coupling of CAN and CAN FD systems and devices
  • Cost savings due to simple wiring
  • Allows system expansion and tree/star topologies
  • Increased system reliability
  • Line protection by galvanic isolation
  • CANbridge NT 200 or CANbridge NT 420
  • CD with CAN-Gateway Configurator
  • Manual
  • Mini USB cable
CAN baud-rates
Classic CAN: 5 to 1000 kBaud; CAN-FD: 5 to 8000 kBaud 
CAN bus termination resistor None
CAN transceiver Texas Instruments SN65HVD251PTexas Instruments SN65HVD251P
Max. number of bus nodes 120
Power supply 9 V to 36 V DC
Current consumption Typically 110 mA (at 24 V input voltage) or 220 mA (at 12 V input voltage)
Galvanic isolation 1 kV for 1 sec
Operating temperature -40 °C to +85 °C
Protection class IP20
Dimensions 114.5 x 99 x 22.5 mm
Weight Approx. 150 g
Certification CE, FCC
Unlike a CAN Repeater, which only translates the electric signals, the CAN messages are received completely by the CANbridge NT and then sent to the other CAN or CAN FD network in line with existing filter, conversion, port mapping or multiplex rules (Store-Forward principle). With two CANbridge NT 420 it is possible to transmit messages between two Classic CAN networks via a CAN FD network (CAN tunnel).

 

CANbridge NT 200 Network CANbridge NT 420 Network

Filtering and multiplexing
By using mapping tables the message reception/transmission is possible between all 4 channels. With the aid of filter and conversion rules, CAN or CAN FD messages can be filtered or modified. With these mechanism, the bus load can be reduced in the individual networks by only sending messages which are of interest to the other network. For SAE J1939 applications a special mapping table is provided, adapted to the specific parameters. The data multiplexing/demultiplexing functionality enables the mapping of e.g. CAN-FD data to several standard CAN messages and vice versa. 

Action Rules
In response to received messages, device or CAN bus status events, a variety of actions can be performed automatically, e.g. sending messages (CAN, CAN FD), changing device settings or switching device LEDs. Action rules are created through intuitive drop-down menus for events and actions within the Windows-based device configuration tool.

Cyclic transmission
The cyclic transmission feature enables cyclic forwarding of messages. Both, messages and cycle times are defined within a central cyclic transmission table. 

The configuration of the CANbridge NT and the firmware upload is done with an intuitive to operate Windows configuration tool via USB. With the tool, the configuration of filter, mapping, multiplexer or translation rules can be carried out very easily, without programming skills.

CAN@Net NT and CANbridge NT Configuration Tool
Windows configuration tool supporting CANbridge NT and CAN@net NT

Order number

1.01.0331.20000 CANbridge NT200 - 2 x CAN 
1.01.0331.42000 CANbridge NT420 - 4 x CAN (2 channels switchable between CAN and CAN FD)

Learn more about bridges and gateways and see how they work
Click to see application samples...

CAN bridges and CAN gateways are infrastructure components with which complex network structures can be implemented.

A CAN bridge can connect CAN or CAN FD networks of different bit rates or protocols with each other. It is based on the store-(modify)-forward principle where CAN / CAN FD messages are received by a sub-network and then transmitted to the other sub-network. Translation and filter rules can also be used, allowing a protocol adaptation to be carried out between the sub-networks. Unlike the CAN / CAN FD repeater, the CANbridge enables the enlargement of the maximum network size so that the sub-systems are fully self-sufficient with regard to bus arbitration. Independent of each other in terms of their real-time behavior, CAN sub-networks connected by bridges are to be regarded as independent networks.

The bridge function can also be executed with the aid of other transmission systems. For example, the CAN-Ethernet-CAN bridge is connected via two Ethernet-TCP/IP gateways which enable connection to remote CAN / CAN FD networks.

As an extension to the CAN bridges, CAN gateways allow for access to CAN networks via other communication systems. In each case, the protocols of the connected bus systems are mapped to the other communication model.

Application samples:

CAN bridge
Using the CANbridge NT, CAN or CAN FD systems within a building can be separated for every flor, due to this the maximum system expansion can be easily extended.


CAN Bridge Application Sample

CAN gateway
CAN@net NT allows large distance coupling of CAN or CAN FD systems via Ethernet, e.g. for connecting the engine room with the control room on a ship.


CAN Gateway Application Sample

Compare the bridge / gateway functionality
Click to find the right product for your application...

  • CANbridge NT420
  • CAN@net NT420
  • FRC-EP170/190
CANbridge NT420 CAN@net NT420
FRC-EP170/190
Powerful gateway/logger solution from our automotive portfolio
CAN / CAN FD ports (max) 4 4 8
Digital IOs / Analog inputs 0 0 4 / 4
Frame / Signal based configuration / - / - / (DBC, LDF, Fibex, ARXML )
Signal visualization / Web browser - - Web browser / OPC UA / APP
Filter
Data logger - - (SD card, USB, PC)
Programming (C user code) - - with Eclipse IDE and Debugger
Matlab / Simulink / RBS - -
Further interfaces / Protocols - ETH, MQTT USB, ETH, WLAN, FlexRay, LIN, K-Line, Bluetooth, EtherCAT, OPC UA, FDX, XCP

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All you need for CAN

Under the Ixxat and Anybus brands, HMS offers over 200 different products for CAN, CAN FD and the CAN-based protocols.