MODBUS registers

MODBUS Register Overview for TSUN inverters

The GEN3 and GEN3PLUS inverters from TSUN support a limited MODBUS implementation. The register assignment is standardized for the various inverters.

The registers can be read with the proxy from version 0.8.0. In addition, the proxy reads the main registers once a minute and reports value changes via MQTT.

Modbus Register	Data-Type	Description	Unit	Ratio
0x2000	uInt16LE	Boot Status	-	-
0x2001	uInt16LE	DSP Status	-	-
0x2003	uInt16LE	Work Mode	-	-
0x2007	uInt16LE	Max Design Power	W	1
0x2008	uInt16LE	Rated Level	-	-
0x2009	uInt16LE	Input Coeffizient	%	100/1024
0x202c	uInt16LE	Output Coeffizient	%	100/1024
0x3000	uInt16LE	Inverter Status	-	-
0x3008	uInt16LE	Version BCD coded	-	-
0x3009	uInt16LE	Grid Voltage	V	0.1
0x300a	uInt16LE	Grid Current	A	0.01
0x300b	uInt16LE	Grid Frequency	Hz	0.01
0x300c	uInt16LE	Temperature +40°C	°C	1
0x300d	uInt16LE	??	-	-
0x300e	uInt16LE	Rated Power	W	1
0x300f	uInt16LE	Current Power	W	0.1
0x3010	uInt16LE	PV1 Voltage	V	0.1
0x3011	uInt16LE	PV1 Current	A	0.01
0x3012	uInt16LE	PV1 Power	W	0.1
0x3013	uInt16LE	PV2 Voltage	V	0.1
0x3014	uInt16LE	PV2 Current	A	0.01
0x3015	uInt16LE	PV2 Power	W	0.1
0x3016	uInt16LE	PV3 Voltage	V	0.1
0x3017	uInt16LE	PV3 Current	A	0.01
0x3018	uInt16LE	PV3 Power	W	0.1
0x3019	uInt16LE	PV4 Voltage	V	0.1
0x301a	uInt16LE	PV4 Current	A	0.01
0x301b	uInt16LE	PV4 Power	W	0.1
0x301c	uInt16LE	AC Daily Energy	kWh	0.01
0x301d	High16LE	AC Total Energy	kWh	0.01
0x301e	Low16LE	(AC Total Energy)
0x301f	uInt16LE	PV1 Daily Production	kWh	0.01
0x3020	High16LE	PV1 Total Production	kWh	0.01
0x3021	Low16LE	(PV1 Total Production)
0x3022	uInt16LE	PV2 Daily Production	kWh	0.01
0x3023	High16LE	PV2 Total Production	kWh	0.01
0x3024	Low16LE	(PV2 Total Production)
0x3025	uInt16LE	PV3 Daily Production	kWh	0.01
0x3026	High16LE	PV3 Total Production	kWh	0.01
0x3027	Low16LE	(PV3 Total Production)
0x3028	uInt16LE	PV4 Daily Production	kWh	0.01
0x3029	High16LE	PV4 Total Production	kWh	0.01
0x302a	Low16LE	(PV4 Total Production)