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Use Of Modbus/RTU-CAN converter_GCAN

3. Converter used

The working principle of GCAN-204, as shown in figure 3.1.




3.1 The structure of CAN- - Bus

CAN-Bus connection, as shown in figure 3.2.



3.2 Termination resistor

CAN-Bus requires two 120Ω termination resistors in the furthest of the two terminals, as shown in figure 3.3.


Please note: You should connect the two ends of the resistor to CAN_L and CAN_H respectively.

3.3 Indicator light

GCAN-204 converter has one SYS indicator, one DAT indicator that can indicate the converter status. More functions are shown in table 3.2.