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Measurement Computing DaqView User Manual

Page 79

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3.1

Enable Server file conversion.

This option enables the post acquisition file conversion for the specified format type, such as ASCII, and

DADISP. If the option is not checked, then the post acquisition file conversion process is disabled.

Display data after acquired.

If checked, the data acquired by the data acquisition application, such as ChartView or DaqView, is automatically

read and displayed in Excel. Checked is the default setting for this option. Un-check this option if you want to

acquire data without automatically loading it into Excel.

Delete server data files after reading into Excel.

Check this option if you want the Add-In to automatically delete the server data files after they have been read and

displayed in Excel.

Clear spreadsheet cells when inserting data.

Check this option if you want ViewXL to automatically clear the worksheet before displaying new data.

Span worksheets beyond column:

Check this option if you want to control the number of columns of data that can be viewed in a single worksheet.

Example

:

You have an acquisition that contains 24 channels of data. Check the “Span worksheets beyond column

option and then enter either '16', or the letter 'P' into the column entry field. ViewXL will clip the display

at column P, and then create an additional worksheet for the remaining channels.
When Spanning is enabled, the number of channels displayed on a worksheet, and the number of

worksheets created, will be determined by factors such as: (1) The number of channels in the acquisition,

(2) The column specified, (3) The Data Destination settings, and (4) Whether or not Timestamps are

displayed. Scans of data [that span multiple worksheets] are placed in the same row on each sheet, along

with timestamp information, if enabled.

Remove unused worksheets.

Check this option if you want ViewXL to automatically delete any worksheets that are not needed to display the

currently Imported data files, or Server acquisition data

Timestamps

Enable Timestamps

If checked, the Add-In attempts to read timestamp information [from the data file] and add it to the

worksheet. Timestamps are placed in the first column of the worksheet. All channels are moved to the

right one column, to make room for the timestamps. If timestamps are not supported, they are not

displayed in the worksheet. You can check if timestamps are supported in a particular file by selecting the

file in the "Import Files" dialog, and checking the Preview Info button. With timestamps enabled, you can

select the type of timestamp to be displayed.

(

) Display Absolute Time (if available).

If supported, Absolute timestamps are displayed in a Date / Time format. For example "01/24/02

10:33:20 AM". Since these timestamps only have a One Second resolution, they are not practical

for data that was acquired at moderate to fast scan rates. Unless your scan rate is very slow, it is

recommended that you use Relative timestamps.

(

) Display Relative Timestamps.

Relative timestamps show the time, in seconds, of a scan relative to the trigger position. For

example, if you have an acquisition that has three pretrigger scans, and the pre and post trigger scan

rates were 1000 scans / second, the timestamps for the first four scans would be -0.003, -0.002,

-0.001 and 0.000 respectively. This indicates that the first scan was taken 3 ms prior to the trigger

point; the next scan 2 ms prior; and the next 1 ms prior. Scan number four was the trigger point so

its relative time was zero.

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