SonTek
ADP Software Manual Version 6.42 (November 1, 2000)
5
Communication settings
Using the default settings, ADPSA will communicate with the ADP on COM1 at 9600 baud. The
following options can modify the communication port settings.
COM1, COM2
BR1200, BR2400, BR4800, BR9600, BR19200, BR38400, BR57600, BR115200
For example, the following command will run ADPSA with automatic file recording using serial
port COM2 at 4800 baud.
ADPSA -f -COM2 -BR4800
The communication settings can be used individually or in combination with any of the other
command line options. Each communication option should be listed separately on the command
line as shown above; the order in which command line options appear is not important.
2.3. Setting up Data Acquisition Parameters
Unless run with the -g command line option (automatic start), ADPSA enters the setup screen
after loading hardware and user configuration parameters. An example of this screen is shown in
Figure 1. The screen is divided into three areas. The top right corner shows the computer date
and time. The center right portion of the screen presents ADP hardware configuration
information and performance estimates based upon the current operating parameters. The left
side of the screen has a number of active windows to select operating parameters for the ADP.
Computer date/time
The computer date and time are shown in the upper right hand corner of the screen. It is
important to note that this is the date and time used for data collection by ADPSA. The ADP
internal clock is set to match the computer clock, and all data has a time stamp that matches the
computer clock.
Hardware configuration and performance estimate
Hardware configuration parameters are normally downloaded from the ADP. If the program is
unable to establish communication with the ADP, it will load the hardware configuration from
the file specified in the text file “ADPSENS.DEF” (see section 2.1). The first item under
hardware configuration (ADP Status) reflects whether the program was able to establish
communication with the ADP. Sensor serial number and system frequency are values that are
factory set for each ADP. Sensor orientation (for UP / DOWN / SIDE profiling) is set by a
hardware switch on the ADP electronics. Changing sensor orientation also requires the user to
modify the installation of the compass/tilt sensor; see the ADP Operation Manual for details.
Three parameters relating to ADP performance are calculated based upon the current hardware
and operating parameters. Upper and lower profile depths are calculated based upon cell size,
blanking distance, number of cells, sensor orientation, and sensor mounting depth. They
represent the lower edge of the lower cell and the upper edge of the upper cell, respectively. In
the data acquisition screen, velocity data are plotted based upon the location of the center of each
cell. Velocity precision is an estimate of the accuracy of the velocity measurements based upon
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