Omega RD-MV100 Series, User Manual

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8-4
• Event data
This operation is performed when the type of data acquired is set to “event data only,”
or “display data and event data.” There are three modes in data acquisition, [Free],
[Trigger], and [Rotate]. [Free] mode can be set when acquiring the event data only.
Mode Description
Free Data acquisition is started by pressing the START key. The operation is stopped
by pressing the STOP key. When the storage area of the internal memory
becomes full, or the number of files* in the internal memory exceeds 16, it is
overwritten.
* The number of display data files
The number of event data files is equivalent to the number of times the data
acquisition is started/stopped or the number of files that are segmented by the
data length (see section 8.11, during auto save). For details related to the
manual save and auto save, see section 8.4.
Trigger When the internal memory is not divided into blocks :
One event data file is created in the internal memory.
Press the START key to enter the trigger wait state.
After the trigger is activated, data are acquired for the specified time (data length,
see section8.11) and the operation is stopped. At this point, the acquisition does
not start even if the trigger is activated.
Data acquisition
Trigger activated Stop
Trigger wait
When the internal memory is divided into blocks :
An event data file is created in each block.
Press the START key to enter the trigger wait state.
After the trigger is activated, data are acquired for the specified time (data length,
see section8.11) and the operation is stopped. When the trigger is activated
again, data are acquired and stored to the next block. When all blocks are full,
no more acquisition takes place.
Data acquisition
Trigger wait Trigger wait Trigger wait
Trigger activated Trigger activated Trigger activated
First block
Data acquisition
Second block
Data acquisition
Stop
Last block
8.2 Function to Acquire Display Data and Event Data