FAQ
How do I communication with my sensor using the RS-485 interface?
Communication on this interface follows the SDI-12 protocol. This follows a specific timing which is defined by the SDI-12 standard. Please find detailed information in the attached/linked document. The sensor wont react to simple ASCII commands send through this interface as they do not conform to the SDI-12 standard.
Regarding PLS Sensor: The RS-485 interface might not be active by default. In this case it needs to be activated using the SDI-12 interface of the sensor. Our HydroService will assist you in this matter (HydroService@OTTHydromet.com).
Regarding CBS Sensor: The active interface of the sensor is determined by dip switches on the device. Please follow the sensor instruction to active the RS-485 interface.
Learn more about the datalogger implementation via RS-485
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