Measurement Computing ADAC-LVi - Manual (Page 36)

Chapter 2 Intermediate Analog Input VIs
ADAC LabVIEW VI 30
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StatusFlag [U32] StatusFlag:
The Status Flag specifies the completion status of a buffer. This flag can be set to
any of the four following conditions.
BUFFER_EMPTY = 1 No samples are available in the buffer.
BUFFER_INCOMPLETE = 2 The output buffer has not read completely or and
input has not filled to capacity.
BUFFER_COMPLETE = 4 The output buffer has been read completely.
BUFFER_FULL = 8 The input buffer has filled to capacity.
ErrorFlag [i32] ErrorFlags:
The Error Flags specify the condition which has stopped a buffer from
successfully completing. Although an error may be reported, this does not
indicate the BUFFER_FULL flag is not set. This would be the case if an error
was detected and enough samples were available to fill the buffer to capacity.
One or more of these flags
may also be set together. If any of these flags have set, checking the current
hardware error conditions will usually reveal the actual condition that caused the
acquisition runtime error. This flag can be set to any of the four following
conditions.
BUFFER_STOPPED = 1 An error occurred and the buffer(s) are no longer being
serviced.
BUFFER_OVERRUN = 2 An error occurred when attempting to place the next
sample beyond the bounds of the buffer.
BUFFER_UNDERRUN = 4 An error occurred and the buffer is incomplete.
BUFFER_NEXTBUSY = 8 When attempting to access the next buffer, the
current state of the DoneFlag indicated the buffer was not yet available for use.
BufferNum [U32] BuffNum
Buffer Number ID (0-n)
Buffer Complete Buffer Complete is TRUE if this VI was able to successfully obtain a
done buffer. A completed buffer may only indicate the buffer is no longer being serviced
and the status is available, always check the StatusFlag and ErrorFlag.