60 NCA-2 Manual — P/N 52482:M5 03/20/2019
Programming Alter Status Menu
Figure 5.10 Alter Status - Clear Verify Counters
5.3.5 Clear History
Select Clear History from the Alter Status Main Menu, then choose NCA-2 HISTORY or NODE HISTORY N . The NCA-2 will nav-
igate to the Clear History menu, where there are three options: ALARM HISTORY, which clears only the alarm history buffer, EVENT
HISTORY, which clears only non-alarm events in the history buffer, and ALL HISTORY, which clears both the alarm buffer and the
event buffer. Once you clear a history buffer, the data is not recoverable. BACK or <ESC> will return the user to the Alter Status menu.
Refer to Figure 5.11 on page 60.
Figure 5.11 Alter Status - Clear NCA-2 History
5.3.6 Walk Test
When connected to an FACP that supports the function (e.g. NFS2-640 and NFS2-3030), the NCA-2 walk test allows you to remotely
test all active alarms on the monitoring network. There are two types of tests: Basic and Advanced. The advanced test allows you to
retain Control-By-Event (CBE) and Cooperative-Control-By-Event (CCBE) actions.
To perform a walk test, select the corresponding option from the Alter Status menu.
• BASIC/ADVANCED - Toggles between the basic and advanced Walk Test. When ADVANCED is selected, there is an END TEST
option. END TEST is not an option for the basic test.
• SILENT/AUDIBLE - future use.
TROUBLE
PROG MODE ACTIVATED
NODE LABEL FOR LOCAL NCA-2
10:48:52A TUE JAN 22, 2019 N009
CLEAR VERIFY COUNTERS
NODE ADDRESS: Nxxx
THIS WILL CLEAR ALL VERIFY COUNTERS
CLEAR COUNTERS
BACK
Main menu
Program/alter status
Alter status
Clear verify counters
NOTE: For
remote nodes
only.
NOTE: For use with NFS-320, NFS2-640, and NFS2-3030 nodes.
TROUBLE
PROG MODE ACTIVATED
NODE LABEL FOR LOCAL NCA-2
10:48:52A TUE JAN 22, 2019 N009
CLEAR NCA HISTORY
ALARM HISTORY
EVENT HISTORY
ALL HISTORY BACK
Main menu
Program/alter status
Alter status
Clear NCA History
NOTE: Node
history options are
ALARM HISTORY
or ALL HISTORY.
NOTE: Network zones and network logic zones may be used as part of a logic equation; network trouble zones may be used as part of a
trouble equation. CCBE (Cooperative Control-by-event) is the term used to refer to programming over the network in this manner.
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