This method refreshes the values of all tags that are requesting connections from the browser. In normal operation, there is no need to call this method.
For example, if the update interval for the server's unit folder is set to one minute, it may take up to one minute for the latest PLC value to be displayed after the screen is opened.
If you want to display the latest value immediately after displaying it, call RefreshTag in the form's OnInitialize event. However, this will slow down the display speed of the screen because it actually communicates with the PLC to get the latest value.
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