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Products => Test Equipment => Topic started by: davorin on July 28, 2014, 01:49:10 pm

Title: LeCroy DSO math functions via GPIB
Post by: davorin on July 28, 2014, 01:49:10 pm
Hello

I have here a 9354AL and a 9414, both equipped with WP01 and WP02....

Browsing through the GPIB programming manuals I don't see to find any functions where those math functions can be controlled remotely...

Are those documents hard to get or is it just not possible to do?


Title: Re: LeCroy DSO match functions via GPIB
Post by: AlfBaz on July 28, 2014, 02:08:41 pm
Download the Remote Control manual (http://www.ko4bb.com/Manuals/LeCroy/LeCroy_LC_Oscilloscope_Remote_Control_Manual_REVP.pdf) Although they've titled it "LeCroy LC Oscilloscope Remote Control Manual REVP" it appears to be also for the 9300 series.

Then look for the DEF or DEFINE function. It should give you everything you need.

EDIT: actually if you go here (http://www.ko4bb.com/manuals/index.php?dir=LeCroy) there's also a remote manual for the 9400 series by the looks of it
Title: Re: LeCroy DSO match functions via GPIB
Post by: davorin on July 28, 2014, 02:22:34 pm
Hmm....seen something similar in the 9400A operators manual....for defining the functions...

But I don't see to find a command which actually triggers the functions or disables them, like pressing button "E"...

Title: Re: LeCroy DSO match functions via GPIB
Post by: davorin on July 28, 2014, 02:56:56 pm
Defining the functions seems to be fine...just the commands from 9400A programming manuals are wrong...

Code: [Select]
fe:def eqn,'ps(fft(c1))',maxpts,1000,window,rect,dcsup,off

Now why is the FFT appearing on Ch3 output instead of Ch2..would look better with "GRID DUAL" instead of "GRID QUAD"...

But still can't trigger the function remotely..

Title: Re: LeCroy DSO match functions via GPIB
Post by: AlfBaz on July 28, 2014, 04:52:29 pm
Quote from: davorin on July 28, 2014, 02:56:56 pm
Defining the functions seems to be fine...just the commands from 9400A programming manuals are wrong...

Code: [Select]
fe:def eqn,'ps(fft(c1))',maxpts,1000,window,rect,dcsup,off
Clearly we have different scopes, I have an LC574 but I can't imagine there would be very much difference. I tried your command but used TA instead of fe so as to set Trace A of the zoom + math. fe gave me a GPIB error. From what I can gather (looking at what lecroy's scope explorer names things) C1-4 for Channels 1 to 4 TA-B for zoom + math traces A to D and M1-4 for waves stored in memories 1 to 4
Quote
Now why is the FFT appearing on Ch3 output instead of Ch2..would look better with "GRID DUAL" instead of "GRID QUAD"...

But still can't trigger the function remotely..
When I executed the above command nothing visibly happened on the scope's screen, but when I turned Trace A on it was set up as an FFT.
I imagine you would have to send it commands to go to dual trace grid and then turn on the trace