Deep SUNA Manual
For SUNA running firmware version 2.4 or later
4. Terminal Interface of the SUNA
In
APF
mode, the sensor stays in low power sleep, to acquire data when receiving
commands from a controller.
In
Polled
mode, the sensor stays in low power sleep, to acquire data only after woken
up by activity on the RS-232 line and then receiving a command (“Start” for indefinite or
“Measure n” for a fixed number of measurements).
Operation Control
The operation control is
Duration
or Samples based.
Operation control applies to Continuous, Fixed time, and Periodic mode. Either of these
operating modes is further controlled by additional parameters, and Operation Control
determines which parameters apply.
Countdown
The countdown is measured in units of seconds, and initially set to
15
.
The countdown is used in Continuous and Fixedtime operation modes.
Fixed Time Duration
The fixed time duration is measured in units of seconds, and can take any positive
number up to and including 1000000.
Periodic Interval
The periodic interval is restricted to a subset of values that divide the day into integer
parts: 1m, 2m, 5m, 6m, 10m, 15m, 20m, 30m,
1h
, 2h, 3h, 4h, 6h, 8h, 12h, 24h.
Periodic Offset
The periodic offset is measured in seconds.
Whereas the periodic interval establishes a grid of acquisition times, the offset locates
the grid relative to the start of the day (hour 0).
Note
: There is a side effect when an external device needs to run prior to data
acquisition.
Periodic Duration
The periodic duration is measured in seconds.
This parameter is used when
Operation Control
is set to
Duration
.
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