Measurement Computing DaqView - Manual (Page 59)

Auto Scale Waveform
DaqView provides an easy method to determine the upper and lower extents of the selected DAC
waveform. Simply right click the mouse over the Waveform display, and select the Auto Scale item from
the popup menu. DaqView scans the waveform for the highest and lowest values, then sets the upper and
lower waveform range fields to these values. This causes the waveform to be displayed full scale within
the waveform display.
This is useful if the waveform is off scale on the high or low end (indicated by the range input field color
set to red) and you want to bring it back to a full scale view.
Auto Fit Waveform
The DaqView Auto Fit feature is similar to Auto Scale. However, Auto Fit causes the data to be re-scaled
so it fits full scale in the range defined by the values in the upper and lower range input fields.
Note
: For some devices, when hardware triggering has been selected to trigger an acquisition, DAC1 will
be used internally to supply the desired threshold voltage. In this case, CH 1 is not available for
waveform output. The <Copy Waves> and <Paste Waves> buttons use the system clipboard to post
and receive waveform data. The data formats are identical to the Save and Load operations. Copy
and Paste are recommended for use with spreadsheets to numerically inspect and/or modify
waveforms.
To start the waveforms playing on the DACs, click the button.
Although “ Streaming Output” applies to devices with Analog Output channels
it does not apply to all such devices. For example, it does not apply to the following
series: DaqBook/2000, DaqLab/2000, DaqScan/2000, or to devices which use a DBK46.
Selecting the Streaming Output tab brings
up the window to configure continuous
streamed output via one or more DACs, or
digital outputs via the P3 16-bit port.
• Analog or digital output is chosen
from the Data Selection section of the
Streamed Output window.
• The Data Source section selects the
file name and type (ASCII or binary).
• Within the Output Control section,
you can select to send all samples or a
portion, and whether to continuously
repeat or stop after a specified count.
• The clock source can be an internal or
external DAC clock, or an internal or
external pacer clock.
• The button initiates a streamed
output.
DaqView User’s Guide 888994 Waveform & Digital Pattern Output Window 10-3