Honeywell NOTIFIER NFS2-640 Operation Manual page 43

Read Status Operation
4.4.2 How to View Read Status for Event and Alarm History
Overview
The control panel maintains a History buffer 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, System Reset, Signal
Silence, Drill, and Walk Test.
• Programming entries (Program Change and Status Change, but not Read Status), along with a
number (0-9) indicating the programming submenu (for example, 0=Clear). For an example,
see Figure 4.18.
You can view events from the History buffer in two forms: by displaying all events (option 2,
=2) or by displaying alarm events only (option 4,
HIST
NOTE: The History buffer contains 800 events total, including the alarm events that display for
Alarm history. The control panel generates Alarm history from the alarm events that exist in the
800-event History buffer.
How to View Read Status for Event History
next event
previous event
To display events in the History buffer, do the following:
• Press the
first) in the History buffer, or
• Press the
History buffer.
NOTE: The
normal function of displaying the oldest events first.
A sample LCD display for a trouble event:
52
Option 2 (
HIST
buffer (up to 800 events), then view each event in chronological
sequence. From the "Read Status" screen, press 2, then press the
key to display the "Event History" screen. A sample of the Event History
screen is shown below:
E V E N T H I S T O R Y S T A R T
E V E N T S I N H I S T O R Y : 5 5 0
Figure 4.16 Sample Event History Display
key to step through each event from the first entry (oldest event
NEXT SELECTION
key to step through each event from the most recent entry in the
PREVIOUS SELECTION
key will show the most recent event first, and then move to its
NEXT SELECTION
Type of event
T R O U B L I N S Y S T E M
Time and date of the event
Figure 4.17 Sample Trouble Event Display
Viewing and Printing a Read Status
=4).
ALARM HIST
=2) lets you view the total number of events in the History
The number of events in the History buffer
Type of trouble
G R O U N D F A U L T
0 1 : 4 6 P 0 4 1 5 0 8 T u e
NFS2-640 Operations P/N 52743:L4 06/10/19
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