The default TestStand schema logs analog waveform data, such as the LabVIEWDigitalWaveform data type, to this table.

Table 19. PROP_DIGITALWAVEFORM Table Schema
Column Name Data Type Description
ID Primary Key Unique value that identifies each entry in the table.
PROP_RESULT Foreign Key Property ID from the PROP_RESULT table that associates the result with the generic property result.
INITIAL_T Date/Time Trigger time of the waveform.
DELTA_T Number Time interval in seconds between data points in the waveform.
UPPER_BOUNDS String Upper bounds of the data portion of the waveform. For example, "[4][5]".
LOWER_BOUNDS String Lower bounds of the data portion of the waveform. For example, "[0][0]".
TRANSITIONS Binary 1D array of 4-byte integers (I4) in which each element represents the transition location for the corresponding sample in data.
DATA Binary 1D or 2D array of 1-byte integer (I1) values. Valid values include the following:
ValueDigital Data State
00 (force down)
11 (force up)
2Z (force off)
3L (compare low)
4H (compare high)
5X (compare unknown)
6T (compare off)
7V (compare valid)
ATTRIBUTES String Attributes information associated with the waveform.