CANUSB - CAN interface for transmitting CAN data and monitoring entire networks
CANUSB - CAN interface for transmitting CAN data and monitoring entire networks
CANUSB - CAN interface for transmitting CAN data and monitoring entire networks
CANUSB - CAN interface for transmitting CAN data and monitoring entire networks


CAN interface with one or two gal­va­ni­cally isolated CAN in­ter­faces according to ISO 11898 on USB 2.0 with integrated dia­gnos­tic functions

Key Features

  • 1 or 2 galv. isolated CAN interfaces with 1 Mbit/s transfer capacity at 90 % bus load
  • Hot plug and play ensures fast and convenient commissioning
  • MT-API enables access to CAN bus for own applications
  • Optional variant with error frame detection
  • Ideal for use with a PC or notebook
  • Shock-resistant aluminium extrusion housing


The interface is made of an extruded alu­mi­nium housing. Due to its compact design and high shock resistance it is used very suc­cess­fully in various areas of the automation and auto­motive industry.

CAN channels
It has either one or two galvanically isolated CAN channels according to ISO 11898-2 with a transfer rate of 1 Mbit/s at 90 % bus load. The CAN inter­faces are each galv­an­i­cally isolated and are implemented via a 7-pin round con­nector.

More flexibility in data acquisition
With the USB 2.0 interface, the CANUSB can be operated on any notebook and desktop PC. The hot plug and play system makes its use even faster and more efficient, so that it can be put into operation quickly and without restarting the PC.

Microcontroller and firmware update
The STAR12 from Motorola and the PDIUSBD12 from Philips guarantee fast data processing. Both CAN 2.0 A and CAN 2.0 B are supported.

A firmware update is done directly via the USB interface.

Error frame detection
With this optional feature the CANUSB is able to take over debugging and diagnosis in a CAN net­work. The interface has its own logic which detects error frames and counts them in an inter­nal memory. This allows sporadic errors, such as the cor­rup­tion of mes­sages by a participant in the net­work, to be detected.

Level mesasurement
This feature makes it possible to read in the CAN levels analogously and thus, for example, to carry out fault dia­gnosis on a vehicle or machine. It is especial­ly im­por­tant when data is lost from the network, which can be caused by short circuits, for example.

Programming interface
With the CANapi it is possible to access the CAN bus for an own application. The SiECA132 MT-CANapi with four simultaneous handles is provided as standard.

Technical Data

CPU CANMotorola Star12, 16-bit
CAN1× CAN interface acc. to ISO 11898-2, galv. isolated (optional 2× CAN)
CAN Connections1× 7-pin round plug
USB1× USB 2.0
USB ports1× standard USB connector type A
Cable CANoptional 2 m CANUSB cable
Cable USB1 m Standard USB
Max. data transfer1 Mbit/s at 90 % bus load
Error frame detectionoptional
Analog level measurementintegrated
LEDs2× triple 3 mm LED angled
Dimensions (l×w×h)100 mm × 57 mm × 32 mm
Weight166 g
HousingSolid aluminium
Operating temperature range0°C up to +70°C
Storage temperature range–20°C up to +85°C
Rel. Humidity20 % – 90 % non-condensing
Power consumptionmax. 350 mA at 5 V
Power supplyvia USB interface

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