Rev. B
7-32
HMXMC001013
31-Mar-06
7.9
SYSTEM MACRO LIBRARY, CONTINUED
7.9.3
Manage Alarm Monitors
Macro lines (10) through to line (15) demonstrate a possible alarm management
scenario using four (4) monitors to display alarm related cameras.
The macro task (11) is defined to BLANK ALL MONITORS. This would usually be called
by the COLD-BOOT macro declared in the special parameters table.
The macro task (12 to 13) is used to display a new alarm camera onto the available
monitors. It first tests the monitors looking for the first one not already in use (i.e. one
displaying the dummy camera 99). The new camera is displayed on that monitor. If all
monitors are already in use, then the last monitor (M4) will be replaced with the new
camera.
The macro task (14 to 15) is used to remove the specific camera from the alarm
monitors. It does this by checking each monitor to see if the specified camera is being
displayed. If so, that monitor is forced to redisplay the dummy camera (99).
7.9.4 Alarm
Zones
(Active)
In an actual system, the defined external alarm inputs would have their START MACROs
programmed to run an individual macro line in the system macro library table. In macro
lines (17 to 20) three such alarms examples are given. The description line of each (tied)
macro line is given the same description as the CALLING alarm definition. This is for
convenient reference.
These alarm active macros are programmed to choose the applicable camera for that
alarm and pass that camera VALUE to the ADD CAMERA routine (%12) described in the
above example. It is this macro line (12) that now manages the allocation of the camera
to an available monitor for display.
A logical method of dealing with our ALARM MANAGEMENT EXAMPLE has now been
structured into several smaller (and simpler) parts.
7.9.5 Alarm
Zones
(Clear)
Similar to directing the defined alarm start macros to the system macro library, the
FINISH MACRO for the same defines alarm inputs must also be targeted to an ALARM
CLEAR set of macro lines.
Lines (23 to 25) give an example of how the related camera VALUE (for the alarm) is
passed to the DELETE CAMERA macro task at line (14). It is this task that will decide
which monitor display must be cleared.
A logical method of dealing with our ALARM MANAGEMENT EXAMPLE has now been
structured into several smaller (and simpler) parts.
Содержание MAXPRO-Net
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