Specifies the reference location within the acquired record from which to begin fetching.

Default Value: N/A

Supported Devices: PXIe-5644/5645/5646, PXI-5661, PXIe-5663/5663E/5665/5667/5668, PXIe-5820/5830/5831/5832/5840/5841/5842/5860

Remarks

The following table lists the characteristics of this property.

Short Name Fetch Relative To
Data type ci32.png
Permissions Read/Write
High-level VIs N/A
Channel-based No
Resettable Yes
Most Recent Sample 700

Fetching occurs relative to the most recently acquired data. The value of the Fetch Offset property must be negative.

First Sample 701

Fetching occurs at the first sample acquired by the device. If the device wraps its buffer, the first sample is no longer available. In this case, NI-RFSA returns an error if the fetch offset is in the overwritten data.

Reference Trigger 702

Fetching occurs relative to the Reference Trigger.

First Pretrigger Sample 703

Fetching occurs relative to the first pretrigger sample acquired.

Current Read Position 704

Fetching occurs after the last fetched sample.