Campbell Scientific CS445 Liquid Level Sensor - Manual (Page 13)

A-1
Appendix A. SDI-12 Transparent Mode
See Section 9 of the datalogger manual for more details. The datalogger must
be powered up, programmed with a P105 instruction, and have the CS445
connected to it.
1. Enter terminal emulator mode in LoggerNet or PC208W software.
2. On the computer keyboard strike the Enter key a few times until the “*”
datalogger telecommunications prompt appears.
3. The datalogger telecommunications command to enter SDI-12 transparent
mode is “nX” where n is the control port being used for SDI-12.
In this example the selected control port is C1, so the command would be
“1X”. In response, the datalogger opens the link to control port 1
and responds with a prompt. CR10X and CR500 dataloggers reply with
“entering SDI-12”. CR10s reply with a “<” sign.
4. Now check for response from the sensor with address zero by typing the
SDI-12 Identify command “0I!” (that’s a zero, not the letter O).
The sensor should respond with an identification string similar to
“010KWKTechnologiesSPXD-600SDI1.3-1.00.” Note that the SDI-12
standard allows for multiple probes to be connected to one datalogger
control port. If you have another SDI-12 probe on C1 that has address 7,
you could issue the identify command “7I!”.
5. At this point you may change the CS445’s address following this
example: To change the address from 0 to 1 type in “0A1!” .
To exit SDI-12 transparent mode, type any invalid SDI-12 command string.
The simplest would be a blank line such as “”.