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Analog Alarm |
Allows monitoring an analog variable by specifying up to four alarm levels, which are LoLo (Very Low), Lo (Low), Hi (High), and HiHi (Very High).
Analog tab
The available options on this tab are described on the next table.
Available options for the Analog tab
Option |
Description |
---|---|
Subcondition |
Name of this alarm's sub-condition. Available options are LoLo, Lo, Hi, or HiHi |
Enabled? |
Enables checking the selected alarm's sub-condition |
Limit |
Indicates a level in which this alarm's sub-condition is triggered |
Message Text |
Allows specifying a text displayed to users when this alarm's sub-condition is active |
Severity |
Determines a severity for this alarm's sub-condition. Available options are Critical, High, Medium, or Low |
Need Ack? |
Enables or disables the acknowledgment of this alarm's sub-condition |
Event? |
Enables or disables handling this alarm's sub-condition as an event |
Allow shelving? |
Enables or disables shelving this alarm's sub-condition |
Shelve maximum duration |
Maximum time, in minutes, this alarm's sub-condition can remain shelved. Default value of this option is 60, that is, one hour |
Maximum shelve count |
Maximum number of times this alarm's sub-condition can be shelved. Default value of this option is 0 (zero), that is, no limit |
Delay (ms) |
Specifies a delay time, in milliseconds. When this value is equal to 0 (zero, default), no delay is applied |
Deadband |
Enables a dead band, which is a feature used to avoid a variable, when oscillating around an alarm's limit, to generate an unnecessary number of messages |
Return message |
Allows specifying a text displayed to users when this alarm is not in an active condition |