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.

CAN@net NT 200/420

Up to 4 x CAN (2 x CAN FD)
CAN-Ethernet gateway, bridge and PC interface

The CAN@net NT is offered in two variants, as CAN@net NT 200 with two classic CAN channels and as CAN@net NT 420 with four CAN channels, of which two channels can be switched between CAN and CAN FD. Both devices offer three operation modes and can be used as a PC interface as bridge and gateway.

Manuals

CAN@net NT 420 & 200 Manual   CAN Gateway Configurator   CAN@net Generic Protocol

CAN@net NT 200 & 420

Features

  • Up to four independent CAN channels (2 CAN FD channels)
  • Powerful filter, ID translation, data mapping and multiplexing functionality
  • MQTT support for an easy cloud connection
  • Execution of actions using event-triggered "Action Rules"
  • Windows configuration tool for easy configuration via USB or Ethernet
  • Configurable security levels for device access (configuration or firmware upload)
  • Designed for high performance in industrial environments

Benefits

  • Easy coupling of CAN and CAN-FD systems and devices
  • Bridging of large distances and easy remote system access using Ethernet
  • Cost savings due to simple wiring
  • Allows system expansion and tree/star topologies
  • Increased system reliability
  • Line protection by galvanic isolation
  • CAN@net NT 200 or CAN@net NT 420
  • User manual
  • CD with CAN Gateway Configurator
  • CAN VCI driver for Windows
  • Mini USB cable
Ethernet interface 10/100 MBit/s, twisted pair, RJ45 connector
CAN transceiver Texas Instruments SN65HVD251P
Max. number of bus nodes 120
CAN bus termination resistor None
CAN baudrates Standard CAN: 5 to 1000 kBaud, CAN-FD: 5 to 8000 kBaud
Power supply 9 V to 36 V DC
Current consumption typically 110 mA (at 24 V input voltage) or 230 mA (at 12 V input voltage) 
Temperature range Operating temperature -40 °C to +85 °C, Storage temperature -40 °C to +85 °C
Galvanic isolation 1 kV for 1 sec.
Certification CE, FCC
Housing Polyamide housing for top hat rail mounting
Protection class IP20
Size approx. 114.5 x 99 x 22.5 mm
Weight approx. 150 g

Operation modes

CAN-Ethernet Gateway
In gateway mode the CAN@net NT can be directly accessed from e.g. Windows, Linux, VxWorks or QNX based systems as well as from embedded systems, by using a simple ASCII protocol over a standard TCP/IP socket. As CAN-Ethernet Gateway, the CAN@net NT offers easy, flexible access to four independent CAN systems (two CAN FD) via a LAN or via the Internet.

PC Interface
With the included VCI driver for Windows, the CAN@net NT can be operated like all IXXAT CAN PC interfaces. With the CAN@net NT, all VCI-based IXXAT tools, such as the canAnalyser, as well as customer-specific applications based on the VCI driver can be used. The VCI CAN driver offers the possibility to communicate with up to 128 CAN@net NT devices at the same time.

 

 CAN-at-net NT 420 in PC or Gateway Mode

 

CAN-Ethernet-CAN Bridge
By using up to four CAN@net NT 420 (two CAN@net NT 200), a CAN-Ethernet-CAN bridge can be implemented, with each up to four independent CAN channels (2 for the CAN@net NT 200) per device. The bridge allows the exchange of CAN messages between CAN systems over long distances via TCP/IP, using existing Ethernet infrastructures. The segmentation of CAN systems also increases the reliability and failure safety of the entire system.

CAN-at-net NT 420 Bridge

Functions

Filtering and multiplexing
With the help of mapping tables, the exchange of messages between all channels can be configured very flexibly. Filter and conversion rules can be applied to the CAN and CAN FD messages. As a result, the bus load in the individual networks can be reduced since only relevant messages are transmitted 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, MQTT), 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.

MQTT for cloud connection
Whether device status or CAN/CAN FD data, the MQTT functionality of the CAN@net NT enables transmission of various information to the cloud – easily programmable using action rule lists. With free available broker services and APPs, e.g. status messages or system values can be easily transmitted to your smartphone or other devices.

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

 

CANatNet NT & CANbridge NT Tool
Windows configuration tool supporting CANbridge NT and CAN@net NT

Order number

1.01.0332.20000 CAN@net NT 200 - 2 CAN channels*
1.01.0332.42000
CAN@net NT 420 - 4 CAN channels (2 switchable to CAN FD)*

 

* Please note: CAN@net NT 200 and CAN@net NT 420 can not be combined. For a CAN-Ethernet-CAN-Bridge please use either CAN@net NT 200 devices or CAN@net NT 420 devices.

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