User manual

Operating Principles of XBT Terminals
33003962 11/2011 105
Principle of Alarm Panels
Objective
An alarm panel has the same characteristics as an application panel with respect to:
z the text
z the fields
The first line of an alarm panel is preconfigured (by Vijeo-Designer Lite) to show:
z the dates and times of alarm appearance/disappearance and acknowledgment
z the ranking of the alarm in the alarm list
z the total number of alarms in the list
The advantage of an alarm panel lies in its event-triggered display. Each alarm
panel is associated with a word bit in the dialog table.
If the bit is at state 1, the panel is displayed and the text blinks.
Example
Example of an alarm panel
1 Line time-stamped by the XBT terminal (A for Alarm), the alarm text appears
blinking and changes to a steady display once it has been acknowledged.
Listing Alarms in Operating Mode
z When an alarm appears, it is often the consequence of other alarms. Due to their
priority system, XBT terminals can display the most important alarm, i.e. the
alarm that is presenting the highest risk to the automation system architecture.
z All alarms are time-stamped on appearance.