08-29-2008 06:53 AM
Hi,
I´m currently using Labview to control a wafer prober. The wafer prober
is conected to the pc trough a Agilent 82357A USB/GPIB interface. The
device is properly configured in "Agilent Connection Expert" and I´ve
set the passport tulip in MAX. I can see de device and read de status
byte with MAX and with Labview, but when I try to write an instruction
I receive the visa error code -1073807339 that means "timeout expired"
in both cases. In Labview I´m using NI VISA and I´ve increased the
timeout but I receive the same error.
What could I do to solve it?
Thanks in advance for the help 🙂
Ana
08-29-2008 11:16 AM
08-29-2008 12:13 PM
The resource name that I'm writing is GPIB0::1::INSTR and I think it's correct. MAX and Agilent Conection Expert recognize it automatically. Even more, I've checked it using VISA Find Resource.vi with the same result. There's no other device conected, so I don't think that the resource name is the problem 😞
Any other idea?
08-29-2008 02:57 PM
08-30-2008 03:35 AM
I attach the vi below. It's very simple so maybe the error is obvious.
The prober works with instructions of this kind:
(CMD) P1...Pn (CR)(LF)
where (CMD) = a single or double ASCII alphanumeric character and P1-Pn is the ASCII representation of command parameters 1 through n (if necessesary)
Thanks for your interest :)!
08-30-2008 06:27 PM
09-01-2008 09:37 AM
09-01-2008 12:21 PM
09-02-2008 04:52 AM
The error I receive always is Code: -1073807339, Source: "VISA Write in Request_location_initial_die_reference_die.vi"
In principle the connector seems to be OK. The agilent USB/GPIB interface has the "ready" light on ...could it be that it is incompatible with the vi of NI?
09-02-2008 01:14 PM