User manual

Understanding Dive Zero
Dive Zero time is a critical setting that controls the deployment schedule. Understanding
this setting is key to successful profiler deployment. In patterned profiling, the Dive Zero date
determines the start year of the first pattern in the list. If Dive Zero is set for the month following
the first pattern of the month, a long sleep time (approximately one year) will be inserted before
the deployment begins. It is important to understand this programming concept to avoid setting a
long sleep time unintentionally. This concept works like the Reference Date and Time in
firmware versions that do not use the Deployment Planner (explained in “Reference Date/Time”
in Chapter 7 of this User Manual).
Figures H-10, H-11 and H-12 show examples of how different Dive Zero times result in
different deployment start dates. In these examples, the first pattern in the list is October 10
(patterns have a day and month assigned, but not a year, so that they can be reused).
Figure H-9 shows the Deployment Planner Deployment tab, with a Dive Zero of
October 1, 2008 and the first pattern in the schedule to begin October 10.
Figure H-9: Deployment Planner Project Tab
H-9