Touch screen program transmission must restart the screen point connection, or it will not be transmitted, what is the solution - solution - Huaqiang Electric

SMD aluminum electrolytic capacitor

Programmable Package SG-8018CA(SG7050C) 0.67M~170M

Q: The touch screen is Siemens MP277. What settings are good, how to solve it, thank you

A: You cannot enter the “Transfer” mode during the operation of the screen. You can only enter the “Transfer” mode by clicking “Tranfer” on the restart screen.

You only need to configure a button in the screen. In the click event of the button, select the SetDeviceMode function under "Settings". There are three operating modes:
0 (hmiOnline) = Online: Establish a connection to plc.
1 (hmiOffline)=Offline: Disconnect to the PLC.
2 (hmiTransfer)=Transfer/Download: The project can be transferred from the configuration computer to the HMI device.
Select "Transfer/Download". You can click the button at any time while the screen is running to enter the "Transfer" mode to download the project.

or:
When the panel is powered up, activate the control panel, open the "Transfer" option, and activate the "EnableChannel" of the corresponding port. If the second option "RemoteControl" is activated, the WinCCflexible download command aborts the operating mode of the faceplate and automatically switches to the transfer mode; if it is not active, you must select the transfer mode at power-on or use the mode switch function in the project.