Usb Can Bus Analyzer

USB CAN Bus Analyzer

USB CAN Monitor Viewer Communication Converter Adapter Debugger Transceiver

( Software is not shipped with the product. )

     The Robotell USB CAN Bus Analyzer is a converter and analyzer in a black plastic case that connects a computer to a CAN communication line over USB. It monitors and logs the CAN messages on the line and sends messages to the line from the computer. It supports CAN 2.0A (11-bit standard ID) and CAN 2.0B (29-bit extended ID) frames; the CAN speed is set between 5kbps and 1Mbps. It is powered from USB; no separate power supply is needed.

     One end of the case has a Mini USB input, the other end has a 2-pin screw terminal marked CANH and CANL, with a red jumper next to the terminal and an ACT LED on top. The board works with an STM32 processor and a CH340 USB-serial converter; it appears on the computer as a virtual COM port. Communication uses a binary protocol specific to Robotell; it is not SLCAN compatible.

     It is used with the RobotellCanMonitor and EmbededDebug programs on Windows, and with the robotell interface of the python-can library in Python. It is suitable for monitoring and testing CAN lines such as automotive, battery management system (BMS), motor driver and PLC lines, and for learning CAN. A USB - Mini USB cable is included in the package.

Key features:

     Enclosed, with cable: The board is inside a black plastic case; in the workshop and in a vehicle the short circuit risk is lower than with a bare board. The USB - Mini USB cable is in the package, ready to use out of the box.

     Classic CAN 2.0A and 2.0B: It reads and sends frames with 11-bit standard and 29-bit extended IDs; the CAN speed is set between 5kbps - 1Mbps (e.g. 125k, 250k, 500k, 1M).

     Screw CAN terminal: CANH and CANL wires connect to the 2-pin screw terminal without soldering; the jumper next to the terminal is for line termination.

     Hardware ID filter: Up to 14 receive filters can be defined; only the wanted IDs are monitored on a busy line.

     Ready software support: It is used with RobotellCanMonitor for Windows, the python-can robotell interface for Python and open source example programs.

Features:

• Product type: USB - CAN bus converter and analyzer, enclosed
• CAN standard: CAN 2.0A (11-bit standard ID) and CAN 2.0B (29-bit extended ID)
• CAN speed: adjustable between 5kbps - 1Mbps
• CAN FD: not supported (classic CAN only)
• Channel: 1 CAN channel, bidirectional (monitoring and sending)
• CAN connection: 2-pin screw terminal, CANH and CANL
• Termination: jumper next to the terminal
• Receive filter: up to 14 hardware ID filters
• Computer connection: USB 2.0 (USB 1.1 compatible), virtual COM port
• Processor and USB converter: STM32 and CH340
• Protocol: Robotell binary protocol; not SLCAN compatible
• Software: EmbededDebug V2.0, RobotellCanMonitor (Windows), python-can robotell interface
• Operating system: Windows XP / 7 / 10 (32 and 64 bit); on Linux with python-can
• Indicator: ACT (line activity) LED
• Power: via USB
• Operating temperature: -10°C - +80°C
• USB input: Mini USB
• Material and colour: Black plastic case, blue-white label, blue terminal
• Dimensions: 57mm x 27.5mm x 14.2mm
• Weight: approximately 32gr

Software support:

• Supports EmbededDebuggerV2.0.
• RobotellCanMonitor (Windows, no installation needed): yatrim.com/robotell-can-monitor ( The link may disappear, please keep a backup of the program. )
• Python example program: github.com/nopnop2002/Robotell-USB-CAN-Python
• python-can library robotell interface: python-can.readthedocs.io/en/stable/interfaces/robotell.html

Usage information:

• Plug the analyzer into the computer with the Mini USB cable; install the CH340 driver if needed. Select the COM port number shown in Device Manager in the software.
• Connect the CANH end of the terminal to the CANH wire of the line and the CANL end to the CANL wire. Set the CAN speed in the software the same as the line speed (e.g. 500kbps); at a different speed messages are not read and error frames may occur on the line.
• If the analyzer is at one end of the line and there is no termination resistor at that end, fit the jumper. If both ends of the line are already terminated, remove the jumper. With the line disconnected and the jumper fitted, you can check the termination by measuring between CANH and CANL (approximately 120Ω expected).
• By defining a receive filter in the software you can see only the IDs you want to monitor, and send messages once or periodically.

Application areas:

•  Automotive CAN line listening and vehicle diagnostics work
•  Monitoring BMS (battery management system) and battery pack data
•  CAN communication of electric scooter, bicycle and vehicle control units
•  Setting up and testing motor and servo drivers with CAN communication
•  CAN line monitoring in PLC and field networks
•  Examining CAN messages in agricultural and construction machines
•  Developing robot and mobile robot CAN networks
•  Developing and testing STM32, ESP32 and MCP2515 based CAN circuits
•  Learning the CAN protocol and laboratory work
•  CAN data logging and automated test setups with Python
   

Points to consider:

•  This analyzer supports only classic CAN (2.0A / 2.0B, up to 1Mbps); it cannot be used on a CAN FD line. If you need CAN FD, choose the Canable V2.1 USB CAN FD adapter.
•  Programs using the SLCAN (Lawicel) protocol and the Linux SocketCAN slcan driver do not work with this device; use software that supports the Robotell protocol.
•  The terminal has no GND pin and galvanic isolation of the device is not specified. Do not connect the CANH / CANL ends to a supply line; use with care in high voltage systems or systems with different grounds.
•  Sending messages to a running vehicle or machine line can affect the control units. If you only want to monitor, do not send.
•  Software is not shipped with the product; download it from the links above.

Package contents:

•  1 Piece Usb Can Bus Analyzer
•  1 Piece USB - Mini USB cable
•  Note: Software and CAN line connection cable are not included in the package.