iX Developer

Alarm Management

15.4 Alarm Items

Alarm items are added from the Alarm Items tab of the alarm server configuration pages.

Click

Add

to define a new alarm.

Name

Parameter

Text

Tag

Expression

Condition

Trigger Value

History

Description

Symbolic name for the alarm item that will show in an alarm viewer.

An optional alarm text that will be shown in the alarm viewer. Parts of the text can be made dynamic by clicking

...

The tag (digital or analog), which generates the alarm when it assumes the specified status.

See section

Expressions

Equal to/Not equal to

: The alarm is set when the value of the tag is equal/not equal to the value specified in the

Trigger Value

field.

Greater than/Less than

: The alarm is set when the value of the tag is greater/less than the value specified in the

Trigger Value

field.

Equal to greater than/Equal to less than

: The alarm is set when the value of the tag is equal to or greater/less than the value specified in the

Trigger Value

field.

Rising/Falling Edge

: The alarm is set when the specified tag goes to one/zero.

Numeric value to trigger alarm with when:

<tag value> <condition> <trigger value> = true.

Specifies when the alarm is to be removed from the alarm list. Checking this box means that the alarm will remain in the list until the list is full. Leaving it unchecked means that the alarm will be removed from the list when it is acknowledged and no longer active. If

Acknowledge

Required

is not checked, the alarm will be removed from the list as soon as it is no longer active.

Beijer Electronics, MAEN831H

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