Application Development for Integrating YSI EXO2 Sonde into Smart Mooring using Bristlemouth

[umakat]

@cmchrist

I cannot figure out how to successfully send a message to the sonde. I would like to have code written that sends a command to initiate the wiper process before the sonde starts its sample period. Again, would this be hard coded or part of the sonde’s deployment setup?

Hi @cmchrist!

My understanding is that every time the sonde makes a measurement, either via internal sampling or by a command, the wiper will begin a wipe and then a measurement is taken.

In the EXO3s integration, I send a command via SDI-12 communication interface to ask the EXO3s to make a measurement. It begins a wipe, and ~62 seconds later sends over one set of readings. We haven’t tested an internal sampling scenario yet.

I think the RS232 command to get the EXO2 to make a measurement is different from the SDI-12 command. But on the EXO manual page 43, they list a RS232 extended command twipeb to start a wipe. Have you had a chance to try this command and see if it works for your case?