Operation Manual
SYSTEM
OCR-504 Multispectral Radiometer
SECTION
D - OPERATION
D - OPERATION
To begin operation of your instrument, complete the
Assembly Procedure
described in section
C - START UP
. Once power is applied, instrument
operation begins automatically. The OCR-504 can operate in one of two
primary operating modes
– Autonomous or Network Operation. These
operating modes are collectively called
normal operation
and are described in
detail below. The instrument’s configuration and physical environment
determine which mode the instrument will operate in. This is done during the
initialization sequence, which begins immediately after power is applied to the
instrument. Once the initialization sequence completes, normal operation
begins. This will continue until power is removed or the instrument is reset.
Initialization Sequence
Once power is applied to the OCR-504, the instrument begins a four-second
window of operation called the initialization sequence. During this time, the on-
board electronics are powered up, checked, and readied for operation. If the
silent mode
configuration parameter
6
is disabled, a start-up banner will be
output on the telemetry interface, similar to the one shown below:
Sea-Bird Scientific OCR-504 Multispectral Radiometer
Copyright (C) 2011, Sea-Bird Scientific. All rights
reserved.
Firmware version: 5.1.0 - SatNet Type B
Instrument: SATDI4
S/N: 0001
Reset Source: Power
Press <Ctrl+C> for command console.
Initializing system. Please wait...
This banner is a simple text message that can be viewed in a terminal emulator.
See section
E - CONFIGURATION
for more information on setting up a
terminal emulator to monitor output from the telemetry interface.
The first section of the banner identifies the instrument. Specifically, the first
line identifies the instrument type, OCR-504 Multispectral Radiometer. The
firmware (or microcontroller software) version is identified on the third line. This
line also defines the SatNe
t™ compliance used by the instrument.
Type A
compliance uses a dual processor control system capable of operating as a
Network Master.
Type B
compliance is a smaller, single processor system
without Network Master capabilities. The next two lines define the instrument
type identifier and serial number used at the beginning of a telemetry frame.
See the
Telemetry Format
section below for more information on the
instrument’s telemetry frames.
The next section of the banner gives additional information related to the
initialization sequence. The first line identifies the mode in which the system
was initialized.
Power
indicates that the instrument began operation after power
6
Configuration parameters are discussed in detail in section
E - CONFIGURATION
.