Echelon SmartServer 2.2 - Manual (Page 333)

334 Alarming
To open the Alarm Generator application from an existing Alarm Generator functional block, follow
these steps:
1. Click General if the SmartServer is not already operating in General mode. If the SmartServer is
in Driver mode when you click the functional block, the Setup - LON Functional Block Driver
Web page opens instead of the Alarm Generator application.
2. Click the Alarm Generator functional block representing the Alarm Generator to be opened. The
Alarm Generator: Configure Web page opens in the application frame to the right.
Selecting a Data Point
You can specify the input point to be monitored by the Alarm Generator application. To select an
input point, follow these steps:
1. Click the data point icon ( ) below Input.
2. Select the data point to be monitored by the Alarm Generator from the SmartServer tree. To
monitor a data point of an external device that is being managed with OpenLNS CT, OpenLNS
tree, or another OpenLNS application, you must first copy the data point from the OpenLNS tree
to the SmartServer tree (see Adding Data Points to SmartServer Applications in Chapter 4 for
more information).
3. The current value, state, and unit string of the selected input point are displayed above the input
point icon. The Input icon displays the programmatic name of the data point. The network
variable type and location of the selected input point are listed below the Input icon. In addition,
a reference to the selected input point (
) is added to the bottom of the Alarm Generator
functional block tree, and a reference to the Alarm Generator functional block is added directly
below the selected data point (
).
4. Click Submit.
Selecting a Compare Point
You can specify the compare point that the Alarm Generator will evaluate against the selected input
point. You can select a data point to be used as the compare point or you can enter a constant value.