Utilizing the CW-328 it is possible to quickly and easily measure currents with very little effort. The addition to the CW-300 series from CANWAY is destined for test bench and other applications.

The current measurement interface provides 8 channels with which it is possible to measure currents from -5.8 A to +5.8 A. The measured data can be output both via CAN bus and by means of an analog voltage signal. The maximum output transfer rate via CAN bus is 2 ms. Setting options, such as cycle time, CAN message ID and baud rate can be set via the CAN protocol.

The CW-328 is particularly suited for performing component tests and simulations on HiL test benches. Furthermore, it is practical to deploy this module in all other situations in which currents are to be measured in close proximity to the test specimen. This reduces costs for cabling as well as susceptibility to EMI noise.

In conjunction with the bus technology modules CW-101 and CW-102 it is possible to transfer measurement data via USB or Ethernet to a PC on the one hand, and to alter the configuration of the module on the other. A software API written in C/C++ and C# facilitates incorporating the module in proprietary programs.


  • 8 measurement channels
  • Measurement range ± 5.8 A
  • 10 mA resolution per channel
  • Measurement data output via CAN bus
  • 8 analog voltage outputs proportional to the measured current values
  • Top-hat rail housing for quick and easy installation
  • Easy to extend and scale

Technical Data


Measurement range: - 5,8 A to + 5,8 A
Resolution: 10 mA
Accuracy: 3% to full scale value
Output rate CAN-bus: max. 2 ms per channel (default setting),
variable configuration via CAN-Bus 
Voltage outputs: 0 VDC to 10 VDC 


Number: 1
Typ: ISO 11898-2 (highspeed)
CAN-protocol version 2.0 A and 2.0 B, supports SAE J1939 (29-bit-identifier)
Data rate: 500 kbit/s, on request: 50, 100, 125, 250, 500, 800 and 1000 kbit/s
Terminination: 120 Ohm, optional activation via jumper

power supply

Supply voltage: 11 VDC to 30 VDC
Current consumption: 140 mA at 12 VDC

Environmental conditions

Temperature range operation: -20 °C to +65 °C
Temperature range storage: -20 °C to +85 °C
Relative humidity: 35 % to 85 % non-condensing

General information

Housing: 45 mm DIN-Top-hat rail housing 
Dimensions: 96 mm x 125 mm x 50 mm
Weight: 180 g


Datasheet CW-328

Download (PDF)

Back to the overview | CW-300 Series