Explain IN/OUT terminals common to each VI and points to use VI
Common IN/OUT Terminals
[-1] setting of input terminal
About error output
Points to note when using DAQ-LV-WIN Ver 1.00, Ver 1.01
Example
of Instance VI |
||
IN |
ref in |
Connect to ref out of the VI which perform the previous process |
error in |
Connect to error out of the VI which perform the previous process |
|
OUT |
ref out |
Connect to ref in of the VI which perform the next process |
error out |
Connect to error in of the VI which perform the next process |
|
Unique setting method of DAQ-LV-WIN.
A constant [-1] can be connected to the input terminal of a part VI, and
in this case,
the function that uses the value of the corresponding input terminal is
not executed.
If you want to improve performance even a little, please connect [-1] if
you do not need to change the setting.
The
function execution itself can be skipped when our driver API is
operated with the initial value.
|
If an error occurs in one of the VIs, basically
the subsequent VI processing will not be executed.
The error code is carried over to the end and its contents can be confirmed
with [error out].
In the example below, the error that occurred in the initial channel setting is output to the last [error out].
In DAQ-LV-WIN Ver 1.10, some VI file names
and terminal settings have been changed.
Therefore, when using an application created with the earlier version of
DAQ-LV-WIN, please note the following points.
When [Search VI] dialog is displayed when opening application
Please refer to the FAQ [VI Search Dialog Box Appears] and specify a new VI.
When the application can not run
There is a possibility that the input terminal
of [Essential] setting is not connected.
Please check the wiring to the DAQfast VI being used in the block diagram.
