HeatTag Sensor Modbus Registers

The following table provides the registers that are available for HeatTag sensor.

Address	Register	No.	RW	XR	Unit	Type	Range	Invalid Value	Svd	Function Code	Description
0x0C3B	3132	2	RW	NA	°C	Float32	NA	0xFFC00000	N	03, 100-4	Internal temperature
0xC3E	3134	2	RW	NA	°C	Float32	NA	0xFFC00000	N	03, 100-4	Internal min temperature
0xC40	3136	2	RW	NA	°C	Float32	NA	0xFFC00000	N	03, 100-4	Internal max temperature
0x0CE1	3298	2	RW	NA	NA	UINT32	NA	0x00000000	N	03, 100-4	Validity of the alarm bitmap (register 3300) 0 = Invalid 1 = Valid
0x0CE3	3300	2	RW	NA	NA	UINT32	NA	0x00000000	N	03, 100-4	Alarms bitmap 0 = Alarm OFF 1 = Alarm ON Bit 8 = HeatAlarm status Bit 9 = Preventive maintenance on the device (fan error from HeatTag sensor) Bit 10 = Device replacement (internal error from HeatTag sensor that implies to replacement)
0x0CF9	3322	1	RW	NA	NA	UINT16	0–190	0x0000	N	03, 100-4	HeatTag alarm type 0 = No alarm 1–15 = Low level alarm 16–93 = Medium level alarm 94–190 (except 99) = High level alarm 99 = Test alarm (For more information on Test modes, refer to DOCA0172EN HeatTag Wireless Sensor for Early Detection of Overheating Cables – User Guide)
0x0CFA	3323	1	RW	NA	NA	UINT16	0–3	0x0000	N	03, 100-4	HeatTag alarm level 0 = No alarm 1 = Low level alarm 2 = Medium level alarm 3 = High level alarm
0x0FA0	4001	2	RW	NA	°C	Float32	NA	0xFFC00000	N	03, 100-4	Temperature value
0x0FA2	4003	2	RW	NA	°C	Float32	NA	0xFFC00000	N	03, 100-4	Maximum value that the wireless device can read (maximum measurable temperature)
0x0FA4	4005	2	RW	NA	°C	Float32	NA	0xFFC00000	N	03, 100-4	Minimum value that the wireless device can read (minimum measurable temperature)
0x0FA6	4007	2	RW	NA	NA	Float32	NA	0xFFC00000	N	03, 100-4	Relative humidity value Example: 50% represented as 0.50
0x0FA8	4009	2	RW	NA	NA	Float32	NA	0xFFC00000	N	03, 100-4	Maximum value that the wireless device can read (maximum measurable humidity)
0x0FAA	4011	2	RW	NA	NA	Float32	NA	0xFFC00000	N	03, 100-4	Minimum value that the wireless device can read (minimum measurable humidity)
0x0FAC	4013	2	RW	NA	NA	Float32	0–10	0xFFC00000	N	03, 100-4	Air quality index 0 = Good without triggered alarm 1–9 = Intermediate without triggered alarm 10 = Bad with triggered alarm (register 3322 and 3323)
0x79C7	31176	1	RW	NA	NA	UINT16	0–2	0xFFFF	N	03, 100-4	Operation mode 0 = Test mode (0–30 minutes after HeatTag sensor is powered on 1 = Auto-learning mode (30 minutes–8 hours after HeatTag sensor is powered on) 2 = Normal operation mode (>8 hours after HeatTag sensor is powered on)