User Guide

User Guide

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5.3 Precautions for the use of SDI-12

(1) multiple sensors can be mounted on the sdi-12 bus, but the state maintenance of sensors should be

paid attention to and the failed sensors should be detected in time, because the failure of one sensor

may affect the normal work of the whole bus, even if other sensors are normal.

(2) Under the power supply of 3.3V, there can only be one device on the SDI-12 bus, with no influence

under other voltages.

(3) when the data collector operates the sensor, retry should be included in the logic, otherwise there will

be a certain probability that the data cannot be read due to cable interference, baud rate deviation and

other reasons.