CAN-Bus and CCP-Analyzer

The CW-141 makes it possible to study and analyze CAN networks. Designed as a portable, hand-held device in a rugged aluminium housing, it is particularly suitable for mobile use.

Utilizing the CW-141 in combination with its intuitively designed software operated via a touchscreen it is possible to measure and analyze the characteristics of CAN networks including the baud rate, terminating resistor, short-line faults, signal level and CAN data (data and error frames). As a consequence the battery-powered CW-141 makes troubleshooting on CAN buses in the field easier and eliminates the need to use extensive measurement technology or cabling.

In addition to analyzing physical bus parameters and their correct function the CW-141 offers the option at the same time to test remote CCP stations (CAN Calibration Protocol) in the CAN network.

For this purpose the communication ID of the respective control unit or station is configured for CCP via an A2L file or entered manually. The CW-141 analyzes the connection to the station and displays the result on the touchscreen display.


  • Handy bus analysis tool for CAN bus and CCP
  • Operated and controlled via touchscreen
  • Measure bus load, baud rate, signal level, data and error frames as well as terminating resistors
  • Analyse remote CCP stations
  • Import A2L description files via a USB interface
  • Rugged and handy aluminium housing
  • Battery-powered device with long battery life



Number: 1
Type: ISO 11898-2 (Highspeed)
CAN-protocol version 2.0 A and 2.0 B, supports SAE J1939 (29-bit identifier)
Data rate: 50, 100, 125, 250, 500, 666, 800 and 1000 kBaud
Termination: optional activation via software
Connector: LEMO EPA.0B.303.HLN


Number: 1
Type: USB 2.0
Connector: USB-socket, type A

Environmental conditions

Temperature range operation: 0 °C to +50 °C
Temperature range storage: -20 °C to +70 °C (without batteries)
Relative humidity: 35 % to 85 %, non-condensing
Protection class: IP 40

General Information

Housing: Rugged aluminum-housing
Dimensions LxWxH: 159 mm x 87 mm x 25 mm
Weight: 400 g (without batteries)
Display: 2,8" TFT Touchdisplay, 320 x 240 pixel, 262k colors 
Pushbuttons: Membrane keypad wit 5 pushbuttons

Product features

Scope of features:
  • Hand-held device for analysis of CAN-bussystems
  • Analysis of voltage levels, resistor and CAN-protocol (bit rate, bus load, data- and error frames)
  • Verification of CCP-connections
  • USB-interface to read-in CCP-description files (A2L-files) for communication tests
Voltage measurement: Measurement range: 0 VDC to 6 VDC
Resolution: 0,1 VDC
Resistance measurement:  Measurement range: 0 Ohm to 200 Ohm
Resolution: 1 Ohm


Datasheet CW-141

Download (PDF)

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