Something like this :

IF !THISFORM.oleControl1.portOpen
thisform.oleControl1.portOpen = .T.
ENDIF
mtest = THISFORM.oleControl1.input

Or I need to send request code to the machine in order to get feedback?
How I know the data from Scale Machine is start, and end? What is the string format?

My Client Machine is Teraoka DS-480c. I go to Teraoka Web Site, but can't get the information.

Do you mind to share your code, or any web site can tell more about this.

Thanks.