Campbell CS475, Instruction Manual

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Appendix C. SDI-12 Commands/ Changing Settings
C-5
Initial Command Response
0XGU!
Where zero is the sensor address.
This is the get units command
00011<cr><If>
Where (from left to right),
0—sensor’s address;
001—the amount of time (in
seconds) that you must wait before
sending another command;
1—the number of values that will be
placed in the buffer.
Subsequent Command Response
0D0!
Where the first zero is the sensor’s
address.
0+0<cr><If>
Where the first zero is the sensor
address and the second zero indicates
that the units are meters.
C.1.5 Set Water Conditions
The Set Water Conditions command adapts the sensor to different water
conditions.
There are four different settings:
•
1 (smooth—typical peak to trough of wave < 4”)
• 2 (medium—typical peak to trough of wave < 8”)
•
3 (rough—typical peak to trough of wave > 8”)
The factory default water conditions are set to 1, which is smooth. The water
condition settings should closely mimic the actual water conditions during
normal river flow.
Change this setting by first using the aXSWC+n! command (where n = 1
(smooth), 2 (medium), or 3 (rough)) followed by the aXGWC! (
Get Water
Conditions ) command. TABLE C-7 shows an example of the command and
response for changing this setting.
TABLE C-7. Example for Setting and Getting Water Conditions
Initial Command Response
0XSWC+2!
Where,
0—sensor’s address;
2—the new water condition setting
(2 = medium).
00011<cr><If>
Where (from left to right),
0—sensor’s address;
001—the amount of time (in
seconds) that you must wait before
sending another command;
1—the number of values that will be
placed in the buffer.