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Set scale of oscilloscope via TekVISA

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bischofga55913
Posts: 1
Joined: July 17th, 2019, 3:24 am
Country: Germany

Set scale of oscilloscope via TekVISA

Post by bischofga55913 » July 17th, 2019, 9:17 am

I have downloaded the driver for the Tektronik MSO 4104 from Mathworks. I can get the data and can change the window-timebase.
So the connection to the oscilloscope is established and working.
But I have problems when I want to set the scale of the oscilloscope:

My course of action:
I have opened the "tmtool" and created a new Device Object by using the driver.
Then I have chosen the property "Scale".
At this moment there is an error message:
"The dependent property Probe was not found while saving the Scale property in the channel group."

Then I tried a different approach:
I opened the deviceOBJ (double click on deviceObj in the Workspace) and chose "Channel", then I wanted to increase the Scale.
This caused an Exception:
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException

What am I doing wrong?
Or is there a other way to set the scale?

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