8.8“ Touchscreen Colour Display AHD 880 TC
Operation
44
V5
7.4
Alarms
7.4.1 Colors and Status LED Display
Status LED Display
Warnings or alarm messages are displayed with the alarm mes-
sag
e (top right) and the measuring point’s status LED display. The
status LED display can color code the following measuring point
conditions:
Red: alarm
Orange: pre-warning
Yellow: sensor error
Green (or no color): normal
TIP!
The status messages’ color assignments can be
adjusted for each measuring point separately in the
project specific configuration.
By default, the above listed color designation is
used.
We urgently recommend a uniform color designa-
tion for the corresponding status messages in the
overall project.
7.4.2 Alarm Page
If the data stations in the system record an event, the correspond-
ing information reaches the display AHD 880 TC via the communi-
cations bus. The message is evaluated according to its category
–
pre-alarm, alarm, or sensor error
– and then displayed. The display
automatically switches over to the alarm page and enters the alarm
with its date and time into the alarm list. A blinking color LED marks
an unacknowledged alarm. The internal alarm buzzer is activated
simultaneously.
