It is recommended to use an external temperature sensor to measure the room temperature, and to send the room temperature to the MLR003 device in FPORT 0x01.
In the following situations, the device will estimate the room temperature:
The device has never received an external sensor temperature
The last communicated external sensor temperatur temperature was “0”
It has been a long time since the device last received communication of an external sensor temperature (see FPORT 0x09 for adjustment of this expiry time)
The device has become disconnected from the Gateway
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--uriencoded--\text%7BValve Percent%7D\text{Valve Percent} = K_p * e(t) + K_I * \sum_%7B%7D%5e%7B%7D{}^{} e(t) + K_d * \Big( e(t)-e(t-1) \Big) + \text{Offset Percent} |
See FPORT 0x07 for adjustment of the PID coefficients and Offset Percent.
The device considers moving the motor every 5 minutes.
PID Flow Chart
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