User's Manual

G3 Pro User Manual 25
6.2 Serial Comm. Settings
To establish communication with the device through a serial port (RS232/RS485), you need to configure serial port
settings.
Tap Serial Comm. on the Comm. Settings interface.
Menu Item Description
Serial port
Including no using, RS232(PC) and RS485(PC), select RS232(PC) to communicate with the device
through an RS232 serial port. Select RS485(PC) to communicate with the device through an RS485
serial port.
Baudrate
The rate of the communication with PC; there are 5 options of baud rate: 115200 (default), 57600,
38400, 19200 and 9600. The higher is the baud rate, the faster is the communication speed, but also
the less reliable. In general, a higher baud rate can be used when the communication distance is
short; when the communication distance is long, choosing a lower baud rate would be more
reliable.
Note: If an RS485 serial port is used for communication with the device, the baud rate of the serial port should not be
9600 bps.
6.3 PC Connection
To improve security of data, a Comm Key to enable communication between the device and PC needs to be set.
If a Comm Key is set in the device, the correct connection password needs to be entered when the device is connected
to the PC software, so that the device and software can communicate.
Tap PC Connection on the Comm. Settings interface.
Menu Item Description
Comm Key
Comm Key: The default password is 0 (no password).
Comm Key can be 1~6 digits and ranges between
0~999999.
Device ID
Identity number of the device, which ranges between
1~254.
If the communication method is RS232/RS485,
inputting this device ID in the software communication
interface is required.