Definition of wiring between display and main control board

V/G: provide 24V power supply, where V represents 24V + and G represents 0V

R/T: transmission, transmission and reception of data without cross

First check the communication between the display and the main control board, and then check whether the programs of the display and the main control board match.

Check the system version through the monitoring page. If three groups of numbers are completely displayed and the authorization duration is displayed, there is no problem with communication, as shown in the figure below:

In case of communication failure, check whether the wiring is correct and whether the interface is loose

If there is no problem in communication and the data cannot be operated or saved, the program version may be wrong. Take photos of the monitoring interface and send it to our after-sales service.

Method of brushing program.‍