Emulate a plotter ?

[Oliver Friedrich]

Hallo LabVIEW friends,

I'm using an ADVANTEST R3753B Network analyzer. This analyzer can be
switched to GPIB controller and plot a screenshot via GPIB in HPGL format.

How can I setup a LabVIEW programm, to be a GPIB listener and act like a
plotter. It should be only capable of capturing the ASCII data of the HPGL
transmission and write it to a file.

I've tried it with VISA read operations, VISA Write and Read, send a plot
command via GPIB, all unsuccesful.
Who can tell me all the pitfalls, where I have been fallen into ?

By the way, thanks to all the helpful people in this newsgroup

Thanks for your help

Oli

[SergKr]

Oli,

I'd suggest to address this question to GPIB gurus, speaking in natinst.public.gpib.general or on exchange.ni.com,category GPIB.
From my knowledge of this subject, you should start VISA session as a listener on GPIB bus.
Hope that VISA event vi's will do. Or may be E.g. Wait for request vi will be listen the bus. Then you'll be capable of establishing right connection and only then will be able to get data from instrument. This is only my general understanding, not a solution itself.
Good luck,

[Ram]

Hi Oli

Most instruments have a 'write to disk' type option in the command set. For instance, you may be able to send this query and the response string will contain all the data in ascii format. In your LabVIEW VI, you could simply incorporate a read statement and a write to file next to it.

What was the problem when you tried VISA REad?

Regards,
Subramanian Ramamoorthy
National Instruments Corp.