FPORT 0x08: Temperature Estimation

DOWNLINK

BYTE	BIT RANGE	SIZE	OFFSET	ABBREVIATION	DETAILS
1	DB0.7…0.0	8	0	FADD	Flow Raw Value Offset With 2’s complement Res = 0.25°C
					0x00	0.00
					0x01	0.25
					0x02	0.50
					…	…
					0x7F	31.75
					0x80	-32.00
					…	…
					0xFF	-0.25
2	DB1.7…1.0	8	8	FMUL	Flow Raw Value Multiplication Res = 0.01°C
3	DB2.7…2.0	8	16	NFD	Number of most recent Flow Raw Temperature values to delay by (skip) Clamped to [0..=20]
4	DB3.7…3.0	8	24	NMAF	Number of values used in calculation of Flow Moving Average Clamped to [1..=20]
5	DB4.7…4.0	8	32	NMAA	Number of values used in calculation of Ambient Moving Average Clamped to [1..=20]
6	DB5.7…5.0	8	40	NMAE	Number of values used in calculation of Estimate Moving Average Clamped to [1..=20]
7	DB6.7…6.0	8	48	RATO	Ratio Offset Res = 0.01
8	DB7.7…7.0	8	56	POW	Ratio Power Res = 0.01 Default = 0x00 = 1.2

Tip: To get Temperature Estimation details without changing any options, send an empty FPORT 0x08 Downlink.

UPLINK

Same a Downlink, confirming Uplink settings

Scenario	Flow Offset	Flow Multiplication	Flow Delay	Flow Moving Average	Estimate Moving Average	Ratio Power
Small or well-insulated room	0.0	1.0	0 or 1 If > 0, reduce PI-Coefficient KP (see Port 7)			1.0 + small
Large or poorly-insulated room	0.0	1.0	Consider using If > 0, reduce PI-Coefficient KP (see Port 7)			1.0 + big
Unheated Room is warm	0.0	1.0				1.0 + small
Unheated Room is cold	0.0	1.0				1.0 + big
Temperature close to the radiator is desired	0.0	1.0				1.0 + small
Temperature far from the radiator is desired	0.0	1.0				1.0 + big
Flow Temperature fluctuates	0.0	1.0		Use to smooth
Estimated Temperature fluctuates	0.0	1.0			Use to smooth
Device is mounted above an exposed pipe	Use to compensate	Use to compensate