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Problem with 8756A network analyzer

Question asked by yasamin on Oct 29, 2012
Latest reply on Nov 3, 2012 by jvall
I've been working with the HP 8756A. I could not find any driver for it and so I wrote my VISA driver by LabVIEW 2011.I have been having problems with it locking up after performing a read function.
After entering command 'OD' and reading all 401 points, "Data Dump" appears on the screen. From this point on I can not send any command or retrieve any data.
When I use “OI” command for identification, HP 8756A locked up again!!!
I have attached the program to call for and retrieve the data in case it is in my programming.
Thanks for any help