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13.21 Alarm Bar
The Alarm Bar sets aside a window to display messages registered in the Alarm Scan list via alarm conditions. The
messages are scrolled in from right to left in order of triggering. Alarms continue to scroll until they switch to the
inactive state.
Example of an Alarm Bar:
• A Shape (SP_0) is used for the background rectangle.
• Some TEXT is placed on the Shape to identify what is
being displayed.
• The actual Alarm Bar part is placed on top of the shape.
The alarm messages appear in the Alarm Bar.
Procedure to add Alarm Bar
1. Click the Alarm Bar Tool or select
Alarm Bar
from the
Parts
menu.
2. Fill in General Tab Items:
Description
: A reference name (not displayed) that you
assign to the Alarm Bar.
Display line
: Specifies the height of the window, in
lines, at one message per line. All messages are
displayed as size 16 or 24 font. Two lines are required
for size 24 font.
Char. length
: Specifies the width of the window in 16
point characters. Due to scrolling, messages are never
truncated as in the Alarm Display.
3. Click
OK
to place and position the Alarm Bar where desired.
Note:
Resize an Alarm Bar part by adjusting the
Display Line
and
Char. Length
attributes.
Design Tips:
Put an Alarm Bar object where the Task Bar is located. When the task bar is extended, it hides the bar. When it is
contracted, the bar can be seen. This way, the operator can check for messages as desired and hide annoying messages.
Put the alarm bar in the common window so it is always available.
TEXT
SHAPE
ALARM
DISPLAY
Display at run time scrolling an alarm.
Summary of Contents for MMI-1500
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