Instrument Control (GPIB, Serial, VISA, IVI)

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HP3497a EOS

I am trying to interface a PC to an HP3497a using
GPIB and LabView. My GPIB card and associated
software is from Computer Boards Inc. I am using
LabView 5.0.1. Using the interactive control, I
can successfully send commands such as ibclr and
ibrd to the 3497a. However, none of the ibwrt
commands are executed. If I send a series of
ibwrt commands, all but the last are executed. If
is use GPIB Write in Labview, the 3497a's listen
lihght comes on but the command is not executed
and is eventually timed out. HP says that the
3497a is expecting CR LF but no EOI at the end of
the string. The LabView 3497a Instrument library
has programs that send CR LF and attach EOI. Does
anyone have experience programming the 3497a?
What do I need to do to
correctly terminate
command strings?


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If you are using Labview's GPIB Writes, you can make the mode 6 to
append a CR LF to the string but not send EOI (This is with LabView
5.1, but it is probably the same in 5.0.1).



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