Operator Interface
Figure 5.38: The switching dialog
5.11
Time Auto Synchronization Mode
The mode allows the operator to synchronize system time by using ZDA message data from GPS. For more detailed
information about GPS messages see Appendix D.2, page 284.
The mode parameters are set in the
System
page of the
PARAM
window (see Figure 5.39).
Figure 5.39: Time Auto Synchronization Settings on the System Page
GPS#
— select GPS sensor for time auto synchronization;
Off
— choose to turn the mode off.
When the Time Auto Sync mode is on, the following time corrections are performed:
1. Periodic system time correction.
System time will be corrected when the following conditions are fulfilled:
– offset between the system and CPU time exceeded set threshold.
The threshold value and synchronization period (usually once a day) are set during the
NAVIS NavDP 4000
system installation and cannot be changed by the operator;
– selected GPS operates normally (data from the sensor are used by the system).
In case the sensor is not used or failed, the following alarm is generated: “Selected GPS for Time Auto
Synchronize was turned off”.
– the system receives ZDA messages from the selected GPS sensor.
In case ZDA messages have not been received, the following alarm is generated: “No ZDA data received”.
2. CPU time correction right after the system start-up.
CPU time will be corrected if the offset between the system and CPU time exceeded set threshold.
5.12
Control Panel MCP4000 with 6” Color LCD, the LCD GUI
The LCD is used to display the system operation windows (see Figure 5.40).
The figures 5.41 shows the layout of the screen operational areas. The alarm list is displayed on the center console
(see Figure 2.13). To switch between views use the “VIEW” pushbutton (see 2.4.16, page 31).
NOTE!
In case the panel is not active the Alarm Message Line blinks.
5.12.1
Main View
The center of the screen has the following views to display:
– Alarm List View;
– Parameters View;
– Auto Pilot View;
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