Measurement Computing DASYLab User Manual - Manual (Page 23)

Chapter 2 Defining Measurements
2-2 | dasylab.com
The data flow starts on the left with a data source such as the input modules
of the installed hardware, the generator, or the input instruments. Scaling
modules and evaluation modules follow. On the right, the data flows into data
sinks such as the display modules and the file modules for saving data.
For example, if you want to acquire data from the installed plugin board from
National Instruments, select the data source Inputs/Outputs»NI-DAQmx»
Analog Input on the Modules tab of the browser and drag and drop the
module into the worksheet. Select Display»Chart Recorder and drag and
drop the module to the right of the Analog Input. To connect the two
modules, drag the Chart Recorder against the Analog Input until the chart
recorder inputs touch the outputs of the analog input. When you release the
mouse button, DASYLab automatically connects the modules. Click Start
on the function bar and double-click the title bar at the bottom of the screen
to open the chart recorder.
If you want to color and label function sections of the worksheet, you can
insert documentation frames into the worksheet. Documentation frames are
permanently visible in the background of the worksheet. They do not
influence the worksheet behavior. Right-click the workspace and select
Create Documentation Frame from the context menu. The cursor changes
its appearance to a cross with a sheet of paper. Drag open a frame in the
workspace. Double-click the documentation frame to enter comments and to
change the background color. If you want to create another documentation
frame, select Create Documentation Frame from the context menu. To
finish editing the documentation frame, disable Edit Documentation Frame
in the context menu.
Inserting and Connecting Modules
You can move one or several selected modules in the worksheet in order to
place each module at an appropriate position in the worksheet. If the
connecting data channels have nodes, you must first move the modules
individually and then move the nodes. Avoid long connections. Use the
setting Copy inputs in the display and other data sink modules to transfer
data unchanged to subsequent modules.
Activate the grid display in Options»Global Setup to make it easier to
arrange the modules. The grid interval determines the minimum distance
between neighboring modules and should be greater than 16 points. You can
change the background color and the grid color in the context menu of the
worksheet.