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Selecting display modules, Diagram, Selecting display modules -3 – Measurement Computing DASYLab User Manual User Manual

Page 32: Diagram -3

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DASYLab

© National Instruments Ireland Resources Limited

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exceptions because they can process continuous data and triggered data
together in one module.

You configure input instruments, diagrams, analog and digital meters, status
displays, and bar displays in the module dialog box. For example, if you want
to integrate a rotary switch, select Control»Coded Switch on the Modules
tab of the browser. Click Options in the module dialog box and select Rotary
switch
.

Selecting Display Modules

The following descriptions provide an overview of the functions of the
display windows and help you choose the right module for a certain task.

Diagram

Use the diagram to display data channels as curves in 2D axis systems. You
can use the diagram like the chart recorder, which plots the curves from right
to left, or like the Y/t chart, which plots the curves from left to right, or you
can use the diagram like the x/y chart, which plots the relationship between
channel pairs.

The diagram cannot only display all data channels in one axis system or every
data channel in a separate axis system, but can also combine selected data
channels in axis systems. DASYLab plots all curves over the same x-axis so
that you can compare the curves with each other. To display a further channel
in an axis system, right-click the axis system and select Add Channel from
the context menu and then select the data channel, for example,
Temperature. To remove a channel from an axis system, select Separate
Channel
from the context menu. The diagram displays the separated channel
in a new axis system. You also can add and separate data channels during a
measurement. Before you start a measurement, you can change the heights of
the individual axis systems by moving the individual x-axes in the display
window. You scale the axes in the module dialog box.

To inspect the curve sections in detail and to review already displayed
measurement values, you must stop the display while the measurement
continues. To do so, right-click the display window and select Freeze. When
you freeze the display, you can move and zoom the curves. Use the mouse
wheel to zoom the curves horizontally: Press and use the mouse wheel
to zoom the curves vertically, and press and use the mouse wheel to
zoom in both directions. Use the left mouse button to move the curves

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