Hello,
I'm GPIB programming the E4991A impedance analyzer. I want to read the trace data from the analyzer to my computer. I'm having problems synchronizing the analyzer sweep with my program. I first make a call to the analyzer to trigger a new sweep via the GPIB. This works. Then, I make the call to read the trace data. In my case, that call is "CALC 4
ATA? FDATA". Once this call is made, the data is read from the analyzer. However, the triggered sweep is not necessarily completed. I want to add to the program something to assure that the sweep is complete before retrieving the data. In the past with VNA's, I would use an OPC or OPC? command to assure a sweep/command is complete before retrieving the data. I need a command to interrogate that the sweep is complete.
Right now, I've resorted to reading the sweep time and just sleeping for that period before retrieving the data. I don't like having to use that crutch.
Thanks
