3. Conexión y uso
The working principle of GCAN-205 is shown in Figure 3.1.


3.1 Configuración con conexiones de PC
The GCAN-205 converter uses a 24V DC power supply. By using the “GCAN205-ModbusTcp-CAN-configV3.CH” software, the GCAN-205 converter can configure the working model and the parameter. GCAN-205 only supports communication between Modbus / TCP-CAN, other protocols are not supported.
3.1.1 Restore the factory Settings
GCAN-205 converter factory IP: 192.168.1.10. If users have changed the IP, users can operate the DIP switch to reset the parameters


Operation method: first open the converter shell to find the switch shown in Figure 3.2. Second switch the No. 2 to “ON”, then supply the power, waiting for 3 seconds. After the “SYS” indicator flashing, turn off the power and switch back to “OFF”. Now,
the converter has been restored to the factory default state, the system factory IP:
192.168.1.10.
Nota: después de reiniciar el convertidor, se borrarán todos los ajustes de los parámetros y de la tabla de asignación. Tenga cuidado.
3.1.2 Change the IP address for PC
PC IP and GCAN-205 IP must be in the same network segment.
For example: converter IP: 192.168.1.10, PC IP: 192.168.1.1.
Please note: PC IP can not be the same as the converter IP.
3.2 Conectar a Ethernet
The ethernet interface of the GCAN-205 converter integrates a 10 / 100M adaptive ethernet chip. The converter conforms to the ethernet standard protocol specification.
3.3 Conexión al bus CAN
In practical use, users only need to connect the CAN_H to CAN_H and CAN_L to CAN_L, then communication can be realized.
The CAN-Bus network adopts topological structure, only the two furthest terminal need to connect 120Ω terminal resistance between CAN_H and CAN_L. For branch connection, its length should not be more than 3 meters. CAN-Bus nodes connection as shown in figure 3.3.


Note: CAN-Bus using ordinary twisted pair. The relationship between the bus length and baud rate is shown in Table 3.1.


3.4 LED del sistema
GCAN-205 converter with one SYS indicator, one DAT indicator. More functions are shown in table 3.2.


Tras encender el convertidor, el indicador luminoso SYS indica que se está suministrando alimentación y que el sistema se está inicializando; de lo contrario, indica un fallo de alimentación o que se ha producido un error.
Si el bus tiene transmisión de datos, el indicador DAT parpadeará.