National Instruments Welding System 321645c-01 Manual De Usuario
Chapter 2
Function Reference — SCAN_Sequence_Retrieve
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National Instruments Corporation
2-303
NI-DAQ FRM for PC Compatibles
SCAN_Sequence_Retrieve
Format
status = SCAN_Sequence_Retrieve (device, samplesPerSequence, scanSequenceVector)
Purpose
Returns the scan sequence created by NI-DAQ as a result of a previous call to
SCAN_Sequence_Setup
.
Parameters
Input
Output
Parameter Discussion
samplesPerSequence is the number of samples in a scan sequence (obtained from a previous
call to
call to
SCAN_Sequence_Setup
)
and the size of the scanSequenceVector output parameter.
scanSequenceVector contains the scan sequence created by NI-DAQ as a result of a previous
call to
call to
SCAN_Sequence_Setup
. The scan sequence will not contain the ghost channel place
holders.
Using This Function
SCAN_Sequence_Retrieve
is used to obtain the actual scan sequence to program the
device. You will need this information to call
SCAN_Sequence_Demux
to rearrange your data
or to extract particular channels data from your acquisition buffer without rearranging it. If
you use
you use
DAQ_Monitor
to extract the data of a channel, you do not need the actual scan
sequence.
Name
Type
Description
device
i16
assigned by configuration utility
samplesPerSequence
i16
the number of samples in a scan sequence
Name
Type
Description
scanSequenceVector
[i16]
contains the scan sequence