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SDI-12 address query

Benjamin.vial Apr 11, 2018 08:24 AM

Hello,

I need to know the SDI12 address of a sensor which have been plugged on the CR1000 on the C5 port.

I know the command to send ("?!"), I think I have to use the terminal emulator via PC400, but how to say to the CR1000 that it has to be sent on the C5 port specificly ?

And, more difficult : remotely ... (IP connexion on a NL120)? I can reach easily the CR1000 but terminal emulator seem to be unclear, it seem it just can receive the "enter" command.

So, any idea ?

Thanks, bye.

Benjamin.vial Apr 11, 2018 09:24 AM

Well, I have answered myself on one point, here what I did :

First, to know what command you can use with the terminal emulator, use de "H" command after press several time "enter" button until the prompt "CR1000>" appear.

In the terminal emulator on PC400, use a connexion that you setting before (the profil to connect a datalogger remotely and just use the commands :

 

SDI12

 

And choose whitch port to use (C1, 3, 5 or 7).

Then, you can send directly a specific command, like "?!" to know the SDI-12 address of a sensor.

But, in my case, the only response I have is "SDI12 Failed". So I'm still stuck. It is possible that the sensor is not parametred well (I broke a wire and not be able to communicate with it since a long ...)

JDavis Apr 11, 2018 02:50 PM

SDI12 Failed means no response from the sensor.

SDI12 Busy means the datalogger program was busy trying to talk to the sensor.

Uri Apr 12, 2018 06:30 AM

You need to stop the program that is currently running on the CR1000, before using the terminal emulator.

Watch this tutorial for detailed walkthrough:

https://www.campbellsci.com/videos/sdi12-sensors-transparent-mode

Benjamin.vial Apr 12, 2018 06:56 AM

Hello,

thanks for your help.

I tried to stop the program, and didn't change the answer of terminal emulator : SDI12 Failed.

Another SDI-12 sensor on the same CR1000 works fine with the terminal emulator, I tip "?!" and it say "0", so I think that is my sensor that is not correctly set...

Last question : If my sensor (the one that not respond to my SDI12 request) is on the same address that the other sensor that works fine, it can block it answer ?

Bye

JDavis Apr 12, 2018 03:00 PM

If you have two sensors with the same address connected to the same port, you will have problems.

Benjamin.vial Apr 13, 2018 08:39 AM

Actually they are not on the same port, only the same datalogger, I thought that could be a problem too.

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