Formatting temperature¶

Temperature readings and settings are stored as int_16 numbers. To achive greater accuracy the values are multiplied by constant number before storage.

Temperature register example¶

0x02 - ZoneTRef¶

Target temperature.

Parameter name	Description	Min	Max	Multiplier
TEMP_REF	Target temperature.	50	450	0.1

Note

Table shows multiplier for current row. Most of temperature settings / readings have 0.1 multiplier. If there is no multpier column or value, multipier equals 1 (data does not need formating).

How to set values¶

task: Set target zone temperature to 18.5stC (RealValue).

Math representation¶

\begin{gather*} SetValue = RealValue / Multiplier\\ 185 = 18.5^\circ / 0.1 \end{gather*}

How to extract values¶

assumption: User read value 245 from temperature register with multiplier 0.1.
task: Extract real temperature.

Math representation¶

\begin{gather*} RealValue = ReadValue * Multiplier\\ 24.5^\circ = 245 * 0.1 \end{gather*}

Guides

Masked Registers