ProSoft Technology ProSoft i-View - Manual (Page 39)

ProSoft i-View ♦ Mobile Process Monitoring and Control Application Data Source Files
Version 2.0.2 User Manual
ProSoft Technology, Inc. Page 39 of 106
September 29, 2011
3.1.10 Alarms
An alarm tag is a special kind of tag that is not displayed in the main tags table. An alarm
tag is characterized by its Style attribute being set to "alarm." Alarm conditions can be
specified with the Style attribute in combination with the Bounds attribute attached to the
tag.
Alarms are tracked and listed on a separate table as shown in the screenshot below.
When an alarm condition is triggered, the tag Label attribute is used to display the text on
the left, which may refer to an alarm group, and the Comment attribute contains the alarm
message displayed on the right.
Alarms will remain on the list as long as they remain active or have not been
acknowledged. Their current state will be shown by small icons next to the alarm text.
Bright Red Alarm Clock icon means active and not acknowledged
Dark Red icon means active and acknowledged
Gray Clock icon means inactive and not acknowledged
For scalar type variables such as INT or REAL, the bounds attribute determines the
exclusion range of the alarm condition. In other words, an alarm styled tag will be
considered active if its current value is NOT in the specified range. For example consider
the following:
style:="alarm"; bounds:={0,100};
The tag holding these attributes will be treated as an alarm, which will become active
when its value is below 0 or above 100.
To support simple min or max condition alarms, the special numeric values "-inf" and "inf"
can be used. For more information, refer to Attribute Scope and Kind (page 25). For
example,
style:="alarm"; bounds:={-inf,100};