daviteq Sigfox WSSFC-AC FW1, Руководство пользователя

Страница: 47 / 49

The V1A single-axis vibration sensor measures the vibration of the object.
The Sigfox-Ready wireless transmitter is to read the measurement values from the V1A sensor and performs the
scaling and calculation to deliver accurate outputs.
To understand how the V1A single-axis vibration sensor works, please refer to this link for a complete understanding
of this measuring technique.
Below are some important configuration parameters which affect the operation of the device like battery life,
measurement accuracy, and alert threshold.
For Battery life estimation, please refer to this link.
measure_period | Default = 3600s
This is the time period for the wireless transmitter to wake up and take the measurement from the transducer.
The default value is 3600s. Users can reduce this value, but smaller value, shorter battery life!
cyclic_data_period | Default = 3600s
Interval time to send an uplink message regardless of any conditions
constant_A | Default = calibrated value by factory
This value will affect the measurement accuracy.
DO NOT change this value!
Those configuration parameters can be changed by downlink or offline tools. For more other configuration parameters,
please refer to the next section.
Sensor configuration can be configured in 02 methods:
Method 1: Configuring via Downlink message. Please find the instructions in this link , but please take note of
the FW version of the Document.
Method 2: Configuring via offline cable .
Some parameters are read-only, and some are read and writeable.
To read the parameters, use the off-line cable as above instruction.
Via uplink message, users can read only one parameter, which is the CURRENT_CONFIGURATION.
Below tables are the lists of the parameters of the device.
Read-only Parameter Table
Modbus
Register
(Decimal)
Modbus
Register
(Hex)
Function
Code
(Read)
No. of
Registers
Description Range Format Property Comment
259 103 3 9
SERIAL
NUMBER
string Read
Sensor serial
number
3.1.2 Operating principle of V1A single-axis vibration sensor
3.1.3 Some important configuration parameters
3.2 Sensor Configuration
3.2.1 How to configure the Sigfox-Ready V1A Sing-axis Vibration Sensor?
Note: THE SENSOR IS ONLY ACTIVE FOR OFFLINE CONFIGURATION IN THE FIRST 60 SINCE POWER UP
BY BATTERY OR PLUGGING THE CONFIGURATION CABLE.
3.2.2 What parameters of the device are configured?