Appendix B – -- SDI-12 with the Sutron 8200, 8200A, and 8210
Entering Extended Commands for Configuration Purposes
The Sutron 8200 family of data recorders supports the SDI-12 transparent mode. This allows the user to
issue commands to the sensor via the data recorder.
From the Front Panel
Go down the menu tree till you come to:
INSPECT
SYSTEM
Go right and then down until you come to:
Enter
SDI-12
Cmd
Press SET and then the unit will prompt you with:
Cmd:
At this point enter the command you wish issued over the SDI-12 bus. The command is entered via the
arrow keys. Remember that the address is always the first character of the command. The 8200 will append
the ! to the end of the command for you. When you have finished entering the command press SET and the
8200 will send the command and display the response to the command.
From a PC connected to the RS-232 port
From the main menu select:
I - Inspect System
From the inspect system menu select:
E - Enter SDI-12 Commands
At this point you will be prompted to enter the command. Enter the command beginning with the unit’s
address and ending with an exclamation point (!). Do not forget the exclamation point. After entering the
command, press ENTER to send the command out over the SDI-12 bus. The 8200 will then display the
response to the command.
Logging data from the M1 or M2 commands or from addresses above
9
Beginning with version 3.3 of the software for the 8200 family, SDI-12 sensors can be renamed to allow any
SDI-12 address or measurement number to be specified. To remap an SDI-12 sensor from its default address
and parameter number you can use the form: SENSOR7a_p where SENSOR7 is the name you wish to give
the sensor (up to 7 characters),
a
is the address of the sensor "0" through "~", and
p
is the parameter number
"1" through "9".
EXAMPLE:
airtempA_1
would read parameter 1 from the SDI-12 device at address "A".
If you wish to use a measurement command other than the default aM!, then you can use the form:
SENS5a_pMm where SENS5 is the name you wish to give the sensor (up to 5 characters), a is the address of
the sensor "0" through "~", p is the parameter number "1" through "9", and m is the measurement command
to use.
EXAMPLE:
stage0_1M3
would use measurement command M3 to read parameter 1 from the SDI-12 device at
address 0.
Another feature is that you can define multiple sensors for the same SDI-12 parameter which will allow you
to define separate slopes, offsets, and other processing for the same parameter.
Bringing the Benefits of Real-Time Data Collection to the World
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