HMI test screens are often used as test equipment or automation equipment
I have a case where the eview touch screen model ET070 of Buco was used
Mine is MCU main board to control HMI display, 485 MODBUS for communication
The single-chip microcomputer board acts as the master control, the HMI slave device is only used for display, and the key input enters the single-chip microcomputer to scan the HMI memory receiving and processing
This KINCO HMI software is not very friendly, and the newbies are really not used to it
Note this interface screenshot
Use these screenshots to understand how to use it