User Manual

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User Manual

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resumes when it wakes up to collect data.

Always-On: The sensor is in constant power supply no matter Sensor Hub is in “sleep” or “wake-

up” mode.

The soil temperature and moisture sensor does not require constant power supply, so choose "

Periodic ".

Note:

1. Usually the device is " Periodic ", except for some special sensors, such as rain gauge, evaporation and

other sensors need constant power supply.

2. Sensor Hub’s each port (1~4) can support access to sensors with the same Modbus address. However, it can

only connect to ONE constant-power sensor with the same address. For example: for soil temperature and

humidity sensors with address 128 (Periodic mode), you can connect 1 sensor to each port at the same

time, hence a total of four soil sensors; For CO2 sensor with address 129 (Always-On mode), then only ONE

CO2 sensor can be connected to Sensor Hub. If you need to connect more sensors of the same type, you

need to modify the sensor address and add configuration information to Sensor Hub.

④ Sensor Type ID: The unique number of each sensor, which is the Hex type, with a valid range of

[0x6000, 0x6150]. Here we set the soil temperature and moisture sensor to 0x6000.

⑤ Measurement Delay: The length of time (in sec) from the time the sensor is powered on to the

time it can obtain valid data.

⑥ Response Timeout: After Sensor Hub initiates a data read request to the sensor, it waits for the

timeout time for a response. If this time is exceeded, the command will be resent; unit: 100

milliseconds.

⑦ Startup Time: The length of time the sensor can communicate from powered -on to

communicating with Modbus, unit: 100 milliseconds.

5.2.3 Configure Measurement Value

（1） Select Sensor, and in the list of measured values, click on the"+"