Campbell CS455 Manual descargar pdf (Pagina 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 “Open Terminal” button as shown in

Figure 3-5.

For CR800 series, CR1000, CR3000 loggers, press <Enter> until the

datalogger responds with the prompt (“CR1000>” for the CR1000). Type

“SDI12” at the prompt (without quotes) and press <Enter>. 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 loggers: The datalogger

telecommunications command to enter SDI-12 transparent mode is

“nX<Enter>” 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<Enter>”. In response, the datalogger opens the link to control port 1 and

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Campbell CS455 Manual Pagina 14