I want to read the settings (time/div,Volt/div,delay,etc...)from a waveform that is saved into a memory register of a FLUKE PM3394A Combiscope.

[Davy]

Dear all,
I am writing a labview application for a Fluke PM3394A Combiscope. I want to read the settings (time/div,Volt/div,delay,etc...)from a waveform that is saved into a memory register. Can somebody help me on this? The Labview driver library I found on NI.com doesn't support this.
Greetings
Davy

[Dennis_Knutson]

Unless you've used some sort of "auto-setup" for the scope, all of the settings are what your program commands the scope to use. Once you've acquired a waveform, typically all that is contained is the raw data. If you need the settings later in the program, you'll have to save them by putting them into a shift register/local variable/plain old wire. If you do use an "auto-setup" (I don't remember if the scope has this feature) and the driver has no query functions, then you'll probably have to write your own. These are usually pretty simple to do and are usually similar to the settings commands with the addition of a "?" at the end. For example, if the command to set coupling of channel 1 is ":INP 1:COU AC", then to query it the command might be "INP 1:COU?"
and you would do a read and get "AC". The instrument programming manual should explain all of the command/query syntax.

[Davy]

Thanks for the answer Dennis, but according to the manual there is a subsystem called "TRACE" for the internal memory. But it has only the commands/queries "COPY","DATA" and "POINTS". So when I use for example "TRACE:COUP? M1_1" I get a send error.
So, there should be another way to solve this issue.
I don't have any problems with the channels.

Greetings
Davy

[Dennis_Knutson]

Well, I wouldn't expect the trace command to return anything but what it says. Look through the manual for the horizontal and vertical settings commands and see how you can do a query of those. You should also be able to look in the driver to see what the commands are. I haven't used this scope in quite a few years and no longer have a manual and don't know here to find one on the web so I'm afraid my help is going to have to be rather generic than specific.