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4. Read Status Read Status Options
18 Unimode 400 Operations PN 50709:A 10/20/97
Read History The control panel maintains a history file of the last 800 events, each with a time and
date stamp. History events include the following:
• All alarms, troubles and operator actions, such as: Acknowledge, Reset, Signal
Silence, Alarm Activate, and Walk Test.
• Programming entries, along with a number (0-9) indicating the programming
submenu (for example, 0=Clear).
The control panel contains two event buffers: a History buffer that can store up to 800
events (all types); and an Alarm buffer that can store up to 200 alarm events.
View Event History From the Read Status screen, press <2>; then, press <Enter> to
display the Event History screen. Figure 14 shows a sample Event History screen:
Figure 14 Event History Screen
View Alarm History From the Read Status screen, press <4>; then, press <Enter> to display the Event
History screen. Figure 15 shows a sample Event History screen:
Figure 15 Alarm History Screen
View or Print Hidden
History
If you clear History, events remain in a shadow file—known as a Hidden History file.
To display or print a Hidden History file, follow the instructions in Table 14. To clear
the history file, refer to the instructions in the Unimode400 Programming Manual.
Table 14 Hidden History Selections
Viewing and printing Hidden History is similar to Read Point. Once you read a Hidden
History, you can do the following:
• Press
L to view the next event in sequence; or
• Press
M to view the previous event in sequence.
EVENT HISTORY START
EVENTS IN HISTORY : 800
The number of events in the
History buffer
ALARM HISTORY START (ESCAPE TO ABORT)
ALARMS IN HIST : 200
The number of events in the
Alarm buffer
To... Press...
Read Hidden Alarm history
6 C
Print Hidden Alarm history
7 C
Read Hidden Normal history
8 C
Print Hidden Normal history
9 C