How to Use DAQfast VI

The basic usage of VI prepared by DAQ-LV-WIN is as follows.


Place the VI on the block diagram

When you installed DAQ-LV-WIN, the [DAQ-LV-WIN] palette appears in the [User Library] of the LabVIEW Functions Palette.
Please place necessary VI on block diagram.


Select the VI to use

- Basic flow

Start with [Setting channel], end with [End]

<Process>

- Application for simple [Read]/[Write]

The simple I/O can implement only by inserting [Read]/[Write] VI in the middle of the figure above.
It is also possible to run a loop of [Read]/[Write].

In the case of counter input, counting starts by executing [start], so [start] is necessary even for simple applications.
Please refer to examples of sample VI.

- Application for performing both of [Read] and [Write]

[Read] and [Write] can be executed side-by-side.

- Application for continuous I/O that operating conditions have been set

As a more advanced usage, it is also possible to perform continuous operation with operating conditions setting.
Please add the necessary settings only by [Setting Timing], [Setting Trigger] and [Setting for Stop]

As executing [Start], operation is performing with the specified conditions
In continuous input (sampling), [Start] sampling and then [Read] the collected data

The counter device with sampling function can also sample the count value in this form

 

In continuous output (generating), after performing [Write] of data, [Start] data output

For the VIs not mentioned here, please refer to examples in sample VI and explanation of VI reference.

 


Select settings and processing with the polymorphic VI selector

The main VI of DAQ-LV-WIN is polymorphic VI.
After placing on the block diagram, you can set and process to suit your purpose by selecting a selector item of polymorphic VI.