User Manual

Siemens Building Technologies VISONIK DCS Functions and System Messages VVS18 CM2U8567E / 04.1999
Landis & Staefa Division Function ACKN 2-1
2 Function Description
2.1 ACKN Alarm Acknowledgement
2.1.1 Initial Access and Handling
CTRL/P
ACKN
Function ACKN provides the following facilities:
–
Individual or general acknowledgement of alarms.
–
Individual alarm acknowledgement with an associated message or additional clear
text.
–
Listing of the last three status change messages associated with the displayed
point.syxxxxx
Function QUIT display only those points where parameter ALconf has on of the
following values:
ALconf=1 (Basic alarm) or
ALconf=3 (Enhanced alarm; for PLT points only)
Operations related to ACKN are displayed on the upper half of the screen similar to
Ctrl/V and Ctrl/D modes. The actual data display is a "snapshot" of the selected alarm
point - there is no further automatic updating.
If <ENTER> is keyed at the "Acknowledge" dialogue step, the "Alarm point" displayed in
the table will be overwritten by the next one.
The related acknowledge message will be output on those terminals as defined in
parameter DEVLOG ($SY).
It is always possible to action Ctrl/V mode from Function ACKN where the current
address in ACKN will be displayed in Ctrl/V mode.
For FLN alarm point processing, VISONIK uses the mechanism of group alarms. The
FLN.DSTA(n) parameter is used not only for logging alarms, but also for acknowledging
them.
Function call-up
General
Conditions
Display
Acknowledge message
Navigate
FLN point