Campbell Scientific CS450/CS455 Pressure Transducer - Manual (Page 14)

CS450/CS455 Pressure Transducer
3.1.3 SDI-12 Transparent Mode
Transparent Mode allows direct communication with the CS450/CS455. This
may require waiting for programmed datalogger commands to finish before
sending responses. While in the transparent mode, datalogger programs may
not execute. Datalogger security may need to be unlocked before transparent
mode can be activated.
Transparent mode is entered while the PC is in telecommunications with the
datalogger through a terminal-emulator program. It is most easily accessed
through Campbell Scientific datalogger support software, but is also accessible
with terminal emulator programs such as Windows HyperTerminal.
To enter the SDI-12 transparent mode, enter Terminal Emulator from
LoggerNet, PC400, or PC200W datalogger support software. A terminal-
emulator screen is displayed. Click the “Close Terminal” button as shown in
FIGURE 3-5.
For CR800-series, CR1000, CR3000 dataloggers, press until the
datalogger responds with the prompt (“CR1000>” for the CR1000). Type
“SDI12” at the prompt (without quotation marks) and press . In
response, the query “Enter Cx Port 1,3,5 or 7” will appear. Enter the control-
port integer to which the CR450 is connected. An “Entering SDI12 Terminal”
response indicates that SDI-12 Transparent Mode is active.
FIGURE 3-5. Terminal Emulator
For CR10X and CR510 standard, mixed-array dataloggers: 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 CR510 dataloggers reply with “entering
SDI-12”.
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