Xylem STORM Central - Manual (Page 18)

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Add Contacts
Alarms are located under the
Administration link after logging
into Storm Central. In order to notify
individuals about an Alarm condition
using e-mail or SMS, Contacts will
need to be added to your account. The
Contacts link is next to Alarms under
Administration. Contacts can be easily
added or removed and only require a
few pieces of information (name, phone
number, e-mail address, etc).
SET UP ALARMS
Storm Central enables both Simple and Advanced Alarms to be created. Simple Alarms typically
consist of a single sensor value compared to a given set point or range of values. Advanced Alarms
allow multiple sensor values from potentially multiple sites to be compared and contrasted. When
a Simple Alarm is created, its Advanced Alarm counterpart is also automatically generated, giving
you access to the exact syntax required for an Advanced Alarm.
An Alarm consists of three main components: the Alarm Information, the Alarm Condition, and the
Alarm Actions & Notifications. The Alarm Information simply provides information about the Alarm.
The Alarm Condition allows the specific requirements of the Alarm to be determined. The Alarm
Actions & Notifications specifies what will happen when the Alarm is triggered.
Alarms are evaluated every time new data is stored in your Storm Central account. As each Alarm is
logically evaluated, its result must be either true or false. When an Alarm becomes true, an Action
and/or Notification can occur. Notifications such as E-mail and SMS Text Messages are Alarm-
specific and can vary per Alarm.
The simplest of Alarms consist of comparing a Sensor’s data value to a provided Set Point. For
example, the image on page 17 under ‘Test an Alarm’ shows an Alarm Condition that will evaluate
to true when the TempC data value of the River Surveyor Site is less than 20. The optional Reset
Point allows the Alarm to only re-evaluate to true once the Reset Point has been reached. In other
words, if a Reset Point of 25 was specified, the Alarm would only be true once the TempC data
point became higher than 25, then dipped back below 20 again. Reset Points can be useful for
data values that may hover around a certain threshold, but should not send a notification every
time the threshold is crossed.
Alarm Components