sending new values for each repetition of a for loop

[labview driver for agilent 8720ES S-para]

I tried to send different values for the each iteration of the for loop, but I couldn’t do it. Can anyone help me with this please? I have attached the full VI and the part VI to have a look.

Thanks

Regards

Mayuren

[Dennis_Knutson]

You are sending a different string with each iteration of the for loop. The first iteration sends 'MARK1  5.000000GHZ;OUTPMARK;', the second sends 'MARK1  6.000000GHZ;OUTPMARK;', etc. Without an instrument, I have no way to tell whether the GPIB Read is actually doing anything, though.

[Matt_Lowe]

Could you post image of block diagram. I have verion 8.5.

[J POWER]

Hi Mayuren,

                    What is it you are trying to do? I have opened the VI's and am unable to picture the application.

Regards

[altenbach]

Talk about race conditions! You code is highly flawed, because (among many other things), there is no data dependency between "GPIB write" and "GPIB read".

This means they can execute in any order and chances are that read occurs at the same time, or before, the write operation, messing up everything. You need to enforce execution order, e.g. by using the error cluster. LabVIEW does not execute left-to-right!