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Video Tutorial on using several PEAK-System Software and Hardware products are available on official YouTube channel of PEAK-System Technik GmbH.

PC CAN Hardware
PC CAN Diagnostics & Education

The PCAN-Diag FD is a handheld device for diagnosis of the communication on a CAN bus. Possibilities for diagnosis are available on the protocol layer by handling CAN 2.0 and CAN FD messages as well as on the physical layer by using the oscilloscope function and further measuring functions for voltage and resistance.

The oscilloscope function is used for a qualitative assessment of the signal course on the CAN bus. Two independent measuring channels sample both lines CAN-High and CAN- Low with up to 100 MHz. Based on the signal course, the PCAN-Diag FD decodes CAN frames and shows their elements in the scope graphics.


The PCAN-MiniDisplay is used as a human-machine interface for the visualization of CAN data. For the connection to the CAN bus, it has two High-speed CAN connectors. The graphic representation of incoming CAN data is configured before using the unit and then is performed on a TFT display.

The PCAN-MiniDisplay can alternatively be used for data logging. The data traffic is recorded to a memory card and can be replayed or analyzed on a PC later on.


PCAN-Diag 2 is a handheld diagnostic device with versatile functions for examining a CAN bus, such as the determination of the CAN transmission rate, the bus load measurement or the termination measurement.In addition to receiving CAN messages, individual and complete message sequences can be sent.In addition, the internal memory card allows the recording and playback of the message traffic. The integrated 2-channel oscilloscope enables the representation of the CAN signals, whereby individual CAN-IDs as well as different events can be used as triggers.The CAN frames are decoded based on the analogously recorded course, to detect, for example, errors in the frame.