binblockread?

[yokojs]

Hello!
Does anybody know which function in LabVIEW is similiar with the command Binblockread in Matlab?

[Dennis_Knutson]

I looked up the command and it says that in Matlab, this command reads data from an instrument. So, it depends on the type of instrument you are trying to read from. For serial, GPIB, PXI, VXI, USB, Ethernet instruments, you use the VISA functions to read and write. Look on the Instrument I/O palette and read chapter 16 of the "LabVIEW Measurements Manual". This is a shipping document available from Help>Search the LabVIEW Bookshelf.

[yokojs]

ya rite, I am trying to use LV to control the network analyzer by GPIB..
and first I have tried Matlab to make some small program and it works well and fast, but when I turned to LV it took longer time and..not so stable I have to say.

My LV is 6.1 version and the point is that is also a German version which I could not understand so much....:smileysad

[yokojs]

Anyway I will read Chaper 16 first...
Thanks a lot!

[Dennis_Knutson]

Try and find a driver for your instrument here. If you can't find a driver, and are trying to write your own, post the code you've written. There should be no difference between GPIB transfers in Matlab or LabVIEW. You're using the same GPIB card I presume.

[thehobbs]

LabVIEW 7.0 and laters includes the Instrument I/O Assistant which is a tool that helps you to read and parse data of any format.  It also has an autoparse feature.

There are several documents on NI's website that can help you with binary block reads using VISA; just perform a search under ni.com/support.  There is also an instrument driver template for oscilloscopes which has template binary block read code in its Read VIs.

As Dennis mentions, your best bet would be to search for an instrument driver on NI's Instrument Driver Network.

[yokojs]

Thank you both very much!
I have found the driver library already, and I have been using this lib to programm now..
The problem is that I have not found out how to deal with this problem from this lib.
There is no such sub program or diagram to fulfill it directly..

Maybe I have to search carefully again...

[Dennis_Knutson]

What problem specifically? Are you looking for a certain instrument command or something else? You should provide some details and especially the make and model number of the instrument.