PRFMsc Configure Pulse Profile Reference Level
- Updated2023-02-21
- 3 minute(s) read
PRFMsc Configure Pulse Profile Reference Level
Configures the high, middle, and low reference levels of a pulse waveform. Pulse profile reference levels are used to define the measurement interval of one complete cycle. The distance between High Reference Level and Mid Reference Level must equal the distance between Mid Reference Level and Low Reference Level. If the two distances are not equal, this VI adjusts either High Reference Level or Low Reference Level to match the smaller of the two distances. For example, if you set High Reference Level to 90%, Mid Reference Level to 50%, and Low Reference Level to 20%, this VI adjusts High Reference Level to 80%.
Pulse Reference In
High Reference Level
Specifies the high reference level of the waveform in units as specified by Reference Level Units. After the signal crosses the mid reference level in the rising direction, it must cross the high reference level before the next falling mid reference level crossing can be counted. The default value is 90.
Mid Reference Level
Specifies the middle reference level in units as specified by Reference Level Units. The interval between consecutive rising mid reference level crossings defines one cycle, or period, of the waveform. At least one high or low reference level crossing must separate each mid reference level crossing. The default value is 50.
Low Reference Level
Specifies the low reference level of the waveform in units as specified by Reference Level Units. After the signal crosses the mid reference level in the falling direction, it must cross the low reference level before the next rising mid reference level crossing can be counted. The default value is 10.
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Error conditions that occur before this node runs. This input provides standard error in functionality.
Reference Level Units
Specifies whether the VI interprets the reference level inputs as percentages of the full range of the waveform or as absolute units. The absolute unit supported by this API is voltage. The default value is Percentage.
| Percentage | The VI interprets the reference level inputs as percentages of the full range of the waveform. |
| Absolute | The VI interprets the reference level inputs as voltage. You must wire data to the reference level inputs if you select this option. |
Pulse Reference
Out
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