Writing LabView Software on System without Hardware

[Marcel Jahn]

I have a PC for developing Software and 4 PCs with DAQ - Hardware. I want to
use the Application Builder to run the code on these PCs.
But when I am writing Software, I can not use all functions of Labview
because Labview cant find any Hardware.
How can I solve this problem?

[CoastalMaineBird]

I have done this for years.

What I do is to develop a single VI, called "DAQ Central" (or whatever you want). It has a FUNCTION input which determines what it does. One function is INIT, one function is SET SCAN RATES, one function is START DAQ, one function is CHECK DAQ DONE, etc., etc. whatever you need.

You'll have to develop this on the machine with hardware. Make sure that ALL (100% of them) DAQ calls are done by this VI or it's children. Make sure that everything works correctly on the real hardware.

Then modify it so that a single switch (controlled by a config file in my case) sets it to "Dummy" mode.
If in dummy mode, do NOT issue any DAQ calls. Generate some phony data and report it back when requested.

Then you can work on t
he other parts of the program - graphing, reports, whatever, without being tied to the hardware.

[waldemar.hersacher]

Hi Marcel,

you do not need the DAQ-HW in your development PC. You need to install NI-DAQ on your development PC and all functions will be available.

You must ensure to call the DAQ VIs only on the PCs with hardware otherwise you must generate some simulated data.

For integration and test you should have a development system temporarily on the target system.

Thats the way we develop LV apps for years. Our PCs have never any DAQ-HW. We have one testing system but mostly your apps see HW on the target system at our customer site.

Waldemar