Echelon IzoT Commissioning Tool - Manual (Page 203)

a functional block state.
Polling Interval Specifies how frequently (in seconds) the data point is polled. The
default is 5 seconds for polled network variables and 15 seconds for
monitored configuration properties and functional block states.
If you change the polling interval, the value you enter becomes the
default for new Data Point SmartShapes of that object type until
you close the drawing and then re-open it from the IzoT
Commissioning Tool Design Manager. For example, if you change
the polling interval for a network variable to 8 seconds, all new
network variable data points that you create will be polled every 8
seconds. The default monitoring rate for functional block states
and configuration properties, though, would not be affected.
Report Value
Changes Only Select whether a network variable Data Point SmartShape is
updated anytime a poll (or update) occurs, or is only updated when
the network variable value has changed. This check box is cleared
by default, which means that the network variable Data Point
SmartShape is updated anytime the network variable is polled (or
updated).
This option is only available if the selected data point is a network
variable.
Use Bound
Connection Selects whether the OpenLNS server monitors a network variable
data point by creating a connection from the OpenLNS Network
Service Device (NSD) to the network variable, or by polling. This
check box is cleared by default, which means the OpenLNS server
uses polling.
This option is only available if the selected data point is an output
network variable. If an input network variable is selected, the
OpenLNS server automatically uses polling.
5. Click OK. The Data Point SmartShape is added to your OpenLNS CT drawing. The data point
value opens in the Data Point SmartShape if monitoring is enabled in the OpenLNS CT drawing
and in the Data Point SmartShape.
6. If no data point value opens in the Data Point SmartShape, verify that monitoring is enabled in
both the network and in the Data Point SmartShape. Right-click the Data Point SmartShape and
select Monitor Value on the shortcut menu if it is not already selected. If the data point value
opens in brackets, right-click a clear space in the drawing page and select Enable Monitoring on
the shortcut menu.
Updating a Data Point
You can update the value of a Data Point SmartShape that represents an input network variable,
configuration property, or functional block state. A Data Point SmartShape may represent a scalar
value, a structured value, or an enumerated value.
• A scalar value is a single number such as a temperature or a pressure.
IzoT Commissioning Tool User’s Guide 187