Echelon LonMaker - Manual (Page 200)

184 Monitoring and Controlling Networks
• A scalar value is a single number such as a temperature or a pressure.
• A structured value is a value that contains multiple fields such as a switch value with state and
level fields.
• An enumerated value is a value with multiple states each represented by an enumeration string,
such as an occupancy state with occupied and unoccupied values or an HVAC mode. A functional
block state is also an enumerated value.
Updating a Scalar Data Point
To set the value of a scalar data point, follow these steps:
1. If updates are not enabled, right-click the Data Point shape, select Properties on the shortcut
menu, and then select the Enable Value Updates check box in the Data Point Shape dialog.
Click OK.
2. Double-click the Data Point shape and then enter the desired value.
Updating a Structured Data Point
To set the value of an input network variable or configuration property data point that has a structure (a
type with multiple fields), follow these steps:
1. If updates are not enabled, right-click the Data Point shape, select Properties on the shortcut
menu, and then select the Enable Value Updates check box in the Data Point Shape dialog.
Click OK.
2. Double-click the Data Point shape and then enter the desired value for one or more of the data
point fields. Alternatively, you can use the Set Network Variable Value dialog to set the values
for the fields. The benefit of using this dialog is that it displays the name, unit type, and maximum
and minimum values for each of the fields, which makes it easier to enter a valid value. To use the
Set Network Variable Value dialog, follow steps 3–5.
3. Right-click the Data Point shape and click Value Details on the shortcut menu. The Set Network
Variable Value dialog box opens.