Halytech
hydroSpider2 User’s Manual v1.23
Page 60
5.10.4.4
Super Alarms
The state of two or more alarms (whether they are active or inactive) can be used as a trigger
condition in what is known as a Super Alarm. This kind of alarm monitors the state of the selected
alarms and, if they line up with what the user has configured, the alarm will activate.
The various alarm conditions can be combined using ‘AND’, where every condition must be met
before the super alarm will trigger, or ‘OR’, where if any of the alarm conditions are met, the super
alarm will be triggered.
This is useful for creating complex alarm trigger conditions.
Super Alarm trigger source
For example
: take the scenario where the hydroSpider2 has been configured with the following
channels:
Channel 1: Incoming flow (Counter)
Channel 2: Pump state (Switch)
Channel 3: Water level (Analogue)
The user wants the hydroSpider2 to send out an alert only when the incoming flow is greater than
1L/minute AND the water level is greater than 3m AND the pump state is OFF.
To achieve this, the following alarms can be set up:
Alarm 1: Channel 1 (Incoming flow) > 1.000 L/min
Alarm 2: Channel 2 (Pump state) is ON
Alarm 3: Channel 3 (Water level) > 3m
Alarm 4: Super Alarm [alarm 1 active AND alarm 2 inactive AND alarm 3 active]
o
Configured to send out an alert