Fetch Operation

The Fetch operation retrieves the measured value(s) from a previously started acquisition for the listed channels. Before calling the Fetch operation, use the Initiate or Read operation on any channel to initiate a measurement. You can use the Fetch operation multiple times on a channel to retrieve different types of data from the same acquisition. Typically, the Fetch operation is called only in a sequence of calls to other low-level driver operations, such as the Initiate operation.

The Edit IVI Scope Step dialog box for the Fetch operation contains the following tabs:

• Channels —Specifies which channel data to retrieve, the type of data, and where to store the data.
• Operation Settings —Specifies where the dialog box saves and reloads the operation settings.