User manual

MAUI Oscilloscopes Remote Control and Automation Manual
You could also use WriteString with the legacy IEEE 488.2 command set. For example, write:
Call dso.WriteString("C1:VDIV 200 mV", 1)
This command will reset the Vertical Scale, same as did the "app.C1.VerScale" Automation command sent
in Exercise 1. Either legacy commands or VBS Automation commands can be sent using WriteString.
Change Grid Mode
Add another line to the program to change the Grid Mode from Quattro back to Auto, or any other grid
mode supported by your oscilloscope model:
Call dso.WriteString("VBS 'app.Display.GridMode = "Auto"'", 1)
Note: When using ActiveDSO with Excel VBA, arguments must be placed inside two double quotes,
so the above call would be: Call dso.WriteString("VBS 'app.Display.GridMode =
""Auto""'", 1)
If you wish, add lines for any other setup changes you'd like to make, using the XStreamBrowser to find the
CVAR and copying the path into the VBS command.
Read Back Grid Mode and Vertical Scale
There are several ActiveDSO methods to read back parameter results and waveform data, but a simple
way to read setup values is to use the VBS? query with the Automation control.
In your program, write:
Call dso.WriteString("VBS? 'app.Display.GridMode'", 1)
Call.dso.WriteString("VBS? 'app.Acquisition.C1.VerScale'", 1)
Notice we're still using WriteString to "read back," as what we're doing is writing the string that is the VBS
query. The query, by its nature, returns information. Again, we're including the Boolean 1 that tells the
oscilloscope to interpret the instruction immediately.
What we still need to specify is how to display the result text:
Call dso.WriteString("VBS? 'return = app.Acquisition.C1.VerScale'", 1)
myString = ReadString(numbytes)
MsgBox (myString)
Disconnect
Write the following lines to disconnect from the XStreamDSO application and end the program:
dso.Disconnect
Set dso = Nothing
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