Tags: 8753b, analyzer, connected, drivers, example, gbip, gpib, included, labview, network, old, programming, timeout, visa, working, write
VISA Write timeout with GBIP
We have an old HP 8753B Network Analyzer that is connected through GPIB. I'm
trying to get it working with an example included in the drivers found on N
I's site. Communication is working, the initialize VI and a save/recall stat
e VI both execute fine. How
ever, the next VI to run simply sends one command which is only 5 characters
long to VISA Write. This Write will timeout after 10 seconds and return a "
Timeout expired before operation completed" error.
Any idea what would cause this half way through an example program? I've bee
n searching and I see things about sending large amounts of data causing thi
s error, but we're only sending one small command.
Also, there used to be a different VI before the current one that causes a p
roblem and that would return the error. It seems as though anything that fol
lows the save/recall state VI fails.
I don't know much about GPIB, but I'm thinking that the save/recall state VI
is somehow making the instrument hang up and then when I call VISA Write in
any VI afterwards, the handshaking that is supposed to occur fails. Does th
is make sense?
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