Echelon LonMaker - Manual (Page 203)

LonMaker User’s Guide 187
Example: A subsystem named “Subsystem 1,Building1.Floor1.Room1” contains a Data Point shape,
and the Use Subsystem Absolute Path check box for the Data Point shape is cleared. The Data Point
shape references a data point on a functional block in the “Subsystem 1.Building1.Floor2.Room10”
subsystem. The subsystem path stored in the Data Point shape is therefore “^.^.Floor2.Room10”. This
indicates that when the custom Data Point master shape is added to a drawing, the LonMaker tool is to
attempt to locate the monitored object by moving two subsystem levels up the network hierarchy and
then down to the “Floor2.Room10” subsystem in the network.
A custom Data Point master shape is created by dragging the original shape to a LonMaker stencil. If
the custom Data Point master shape is dragged to a “Subsystem 1.Building2.Floor1.Room1”
subsystem, it will reference a data point in the “Subsystem 1.Building2.Floor2.Room10” subsystem.
Copying and Creating a Data Point Shape
You can create a new Data Point shape by copying an existing one following these steps:
1. Copy an existing Data Point shape. You can do this three different ways:
• Right-click a Data Point shape, click Copy on the shortcut menu, right-click an empty space
in the desired subsystem, and click Paste on the shortcut menu.
• Right-click a Data Point shape and then click Duplicate on the shortcut menu.
• Select a Data Point shape, hold down CTRL, drag the Data Point shape to any location in the
subsystem, and then release the mouse.
2. The
Data Point Shape dialog box opens with a default data point selected.
3. Accept the default data point or select a different data point to be monitored in the new Data Point
shape.
4. Click OK. The Data Point shape is added to your LonMaker drawing.
Note: If you change the name of the original data point and paste a new Data Point shape in a
different subsystem, the LonMaker tool will be able to determine the appropriate data point for the new
Data Point shape. This is because the LonMaker tool first checks the handles of the original data point
when creating a new Data Point shape from a copy.
Deleting a Data Point Shape
You can delete a Data Point shape from a LonMaker drawing. To do this, follow these steps
1. Right-click the Data Point and then click Delete on the shortcut menu. If confirmed deletes are
enabled, you will see a dialog asking you to confirm the deletion.
2. If prompted, click Yes to delete the shape.
Creating an HMI with Data Point Shapes
You can use data point and Visio shapes to design simple human machine interfaces (HMIs) in your
LonMaker drawing. An HMI provides a graphical interface for monitoring and controlling a network.
For example, you can create an HMI for a lighting system. The HMI could display the current state of
a lamp, and it could include override switches that let you manually turn the lamp on and off.