Data Communication And Command Format; Command Input Processing - Teledyne WORKHORSE Operation Manual

May 2015
This section defines the commands used by the H-ADCPs. These commands (T) let you set up and control
the H-ADCP without using an external software program such as our WinH-ADCP or WavesMon, pro-
grams. However, we recommend you use our software to control the H-ADCP because entering com-
mands directly from a terminal can be difficult. Make sure you read and understand
mands to Deploy your H-ADCP
values (Table 13). If you change these values without thought, you could ruin your deployment. Be sure
you know what effect each command has before using it. Call TRDI if you do not understand the function
of any command.
Using WinH-ADCP / WavesMon for real-time deployments to develop the command file will ensure that
the H-ADCP is set up correctly. The commands shown in Table 12 directly affect the range of the H-ADCP
and the standard deviation (accuracy) of the data.
These commands apply to H-ADCP firmware version 11.10.
When new firmware versions are released, some commands may be modified, added, or
removed. Read the README file on the upgrade disk. When an addition or correction to this
manual is needed, an Interim Change Notice (ICN) will be posted to our web site. Please check
TRDI's web site often at www.rdinstrument.com.

Data Communication and Command Format

You can enter commands with a Windows® compatible computer running TRDI's BBTalk. The H-ADCP
communicates with the computer through an RS-232 (or RS-422) serial interface. TRDI initially set the
H-ADCP at the factory to communicate at 9600 baud, no parity, and one stop bit.
Immediately after you apply power to the H-ADCP, it enters the STANDBY mode. Send a BREAK signal
using BBTalk by pressing the End key to put the H-ADCP in command mode. When the H-ADCP receives
a BREAK signal, it responds with a wake-up message similar to the one shown below. The H-ADCP is now
ready to accept commands at the ">" prompt from either a terminal or computer program.
[BREAK Wakeup A]
WorkHorse Horizontal Broadband H-ADCP Version 11.xx
RD Instruments (c) 1996-2009
All Rights Reserved.
>
If you use a terminal/program other than BBTalk, the BREAK length (up to down transition)
must last at least 300 ms.

Command Input Processing

Input commands set H-ADCP operating parameters, start data collection, run built-in tests (BIT), and
asks for output data. All commands are ASCII character(s) and must end with a carriage return (CR). For
example,
>WP1<CR> [Your input]
Leading zeros are not required. Sending WP00001 and WP1 set the number of pings to 1.
If the entered command is valid, the H-ADCP executes the command. If the command is one that does not
provide output data, the H-ADCP sends a carriage return line feed <CR> <LF> and displays a new ">"
prompt. Continuing the example,
Page 116
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
before deploying your H-ADCP. Most H-ADCP settings use factory-set
WorkHorse H-ADCP Operation Manual
Using Direct Com-