User`s guide

5 Acqu iring Image Data
Controlling Logging Parameters
In this section.. .
“Data Logging” on p age 5-20
“Specifying Logging Mode” on page 5-20
“Specifying the Number of Frames to Log” on page 5-21
“Determining How Much Data Has Been Logged” o n page 5-23
“Determining How Many Frames Are Available” on page 5-25
“Delaying Data Logging After a Trigger” on page 5-28
“Specifying Multiple Triggers” on page 5-29
Data Logging
The following subsections describe how to control various aspects of data
logging.
• Specifying the logging mode
• Specifying the number of frames to log
• Determining how many frames have been logged since the object was
started
• Determining how many frames are currently available in the mem ory buffer
• Delaying data logging after a trigger executes
• Specifying multip le trigger executions
Specifying Logging Mo de
Using the video input object LoggingMode property, you can control w here the
toolbox logs acquired frames of data.
The default value for the
LoggingMode property is 'memory'.Inthismode,
the toolbox logs data to a buffer in memory. If you want to bring image data
into the M ATLAB workspace, you must log frames to memory. The functions
provided by the toolbox to move data into the workspace all work with the
5-20