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RelativeTo

Last Modified: May 21, 2018

Specifies the point in the buffer at which to begin a read operation. If you also specify an offset with Offset, the read operation begins at that offset relative to the point you select with this property. The default value is Current Read Position unless you configure a Reference Trigger for the task. If you configure a Reference Trigger, the default value is First Pretrigger Sample.

Data type: datatype_icon

Name Value Description
First Sample 10424 Start reading samples relative to the first sample acquired.
Current Read Position 10425 Start reading samples relative to the last sample returned by the previous read. For the first read operation, this position is the first sample acquired or the first pretrigger sample if you configured a reference trigger for the task.
Reference Trigger 10426 Start reading samples relative to the first sample after the reference trigger occurred.
First Pretrigger Sample 10427 Start reading samples relative to the first pretrigger sample. You specify the number of pretrigger samples to acquire when you configure a reference trigger.
Most Recent Sample 10428 Start reading samples relative to the next sample acquired. For example, use this value and set Offset to -1 to read the last sample acquired.

Long Name: Read:RelativeTo

Class: DAQmx Task

Permissions: Read/Write

Where This Property Is Available:

Desktop OS: Windows

FPGA:

Web Server: Not supported in VIs that run in a web application


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