sungrow-pv-string-inverter

Register map(s) for this device, with a note of how far each has been checked. Addresses are 0-based, as on the wire. Scale and byte order are confirmed only at the hardware-verified rung.

structure-verified

Decode path is structurally sound (addresses, widths, finite values). Does NOT prove word order or scaling.

point	address (0-based)	type	scale	unit
SN	4989	U16	1
Device type code	4999	U16	1
Nominal active power	5000	U16	0.1	kW
Output type	5001	U16	1
Daily power yields	5002	U16	0.1	kWh
Total power yields	5003	U32LE	1	kWh
System clock: Second	5004	U16	1
Total running time	5005	U32LE	1	h
Power limitation switch	5006	U16	1
Internal temperature	5007	I16	0.1	℃
Total apparent power	5008	U32LE	1	VA
Export power limitation	5009	U16	1
MPPT 1 voltage	5010	U16	0.1	V
MPPT 1 current	5011	U16	0.1	A
MPPT 2 voltage	5012	U16	0.1	V
MPPT 2 current	5013	U16	0.1	A
MPPT 3 voltage	5014	U16	0.1	V
MPPT 3 current	5015	U16	0.1	A
Total DC power	5016	U32LE	1	W
A-B line voltage/phase A voltage	5018	U16	0.1	V
B-C line Voltage/phase B Voltage	5019	U16	0.1	V
C-A line Voltage/phase C Voltage	5020	U16	0.1	V
Phase A current	5021	U16	0.1	A
Phase B current	5022	U16	0.1	A
Phase C current	5023	U16	0.1	A
Total active power	5030	U32LE	1	W
Total reactive power	5032	I32LE	1	Var
Power factor	5034	I16	0.001
Grid frequency	5035	U16	0.1	Hz
Reactive power percentage setting	5036	I16	0.1	%
Work state	5037	U16	1
Fault/Alarm time: Year	5038	U16	1
Fault/Alarm time: Month	5039	U16	1
Fault/Alarm time: Day	5040	U16	1
Fault/Alarm time: Hour	5041	U16	1
Fault/Alarm time: Minute	5042	U16	1
Fault/Alarm time: Second	5043	U16	1
Fault/Alarm code 1	5044	U16	1
Q(P) Curve	5047	U16	1
Nominal reactive power	5048	U16	0.1	kVar
KB	5049	I16	0.001
PA(Lower Power)	5050	U16	0.1	%
PC(Upper Power)	5051	U16	0.1	%
KA(Upperlimit-PF)	5052	I16	0.001
KC(Lower limit-PF)	5053	I16	0.001
Array insulation resistance	5070	U16	1	kΩ
Active Power Regulation Setpoint	5076	U32LE	1	W
Q(U) Curve	5077	U16	1
Reactive Power Regulation Setpoint	5078	I32LE	1	Var
Q_U2	5079	I16	0.1	%
Work state	5080	U32LE	1
Upper U Limit	5081	U16	0.1	%
Meter power	5082	I32LE	1	W
U2 Limit	5083	U16	0.1	%
Meter A phase power	5084	I32LE	1	W
Lower Q/Sn	5085	U16	0.1	%
Meter B phase power	5086	I32LE	1	W
Meter C phase power	5088	I32LE	1	W
Load power	5090	I32LE	1	W
Daily export energy	5092	U32LE	0.1	kWh
Total export energy	5094	U32LE	0.1	kWh
Daily import energy	5096	U32LE	0.1	kWh
Total import energy	5098	U32LE	0.1	kWh
Daily direct energy consumption	5100	U32LE	0.1	kWh
Total direct energy consumption	5102	U32LE	0.1	kWh
Daily running time	5112	U16	1	min
Present country	5113	U16	1
MPPT 4 voltage	5114	U16	0.1	V
MPPT 4 current	5115	U16	0.1	A
MPPT 5 voltage	5116	U16	0.1	V
MPPT 5 current	5117	U16	0.1	A
MPPT 6 voltage	5118	U16	0.1	V
MPPT 6 current	5119	U16	0.1	A
MPPT 7 voltage	5120	U16	0.1	V
MPPT 7 current	5121	U16	0.1	A
MPPT 8 voltage	5122	U16	0.1	V
MPPT 8 current	5123	U16	0.1	A
QP_ExitPowerRatio	5124	U16	0.1	%
QP_EnableMode	5125	U16	1
Monthly power yields	5127	U32LE	0.1	kWh
MPPT 9 voltage	5129	U16	0.1	V
MPPT 9 current	5130	U16	0.1	A
MPPT 10 voltage	5131	U16	0.1	V
MPPT 10 current	5132	U16	0.1	A
MPPT 11 voltage	5133	U16	0.1	V
MPPT 11 current	5134	U16	0.1	A
MPPT 12 voltage	5135	U16	0.1	V
MPPT 12 current	5136	U16	0.1	A
QU_Q1	5137	U16	0.1	%
QU_V2	5138	U16	0.1	%
QU_Q2	5139	U16	0.1	%
QU_V3	5140	U16	0.1	%
QU_Q3	5141	U16	0.1	%
QU_V4	5142	U16	0.1	%
Total power yields	5143	U32LE	0.1	kWh
QU_EnterPower	5144	U16	0.1	%
Negative voltage to the ground	5145	I16	0.1	V
Bus voltage	5146	U16	0.1	V
Grid frequency	5147	U16	0.01	Hz
PID work state	5149	U16	1
PID alarm code	5150	U16	1
String 1 current	7012	U16	0.01	A
String 2 current	7013	U16	0.01	A
String 3 current	7014	U16	0.01	A
String 4 current	7015	U16	0.01	A
String 5 current	7016	U16	0.01	A
String 6 current	7017	U16	0.01	A
String 7 current	7018	U16	0.01	A
String 8 current	7019	U16	0.01	A
String 9 current	7020	U16	0.01	A
String 10 current	7021	U16	0.01	A
String 11 current	7022	U16	0.01	A
String 12 current	7023	U16	0.01	A
String 13 current	7024	U16	0.01	A
String 14 current	7025	U16	0.01	A
String 15 current	7026	U16	0.01	A
String 16 current	7027	U16	0.01	A
String 17 current	7028	U16	0.01	A
String 18 current	7029	U16	0.01	A
String 19 current	7030	U16	0.01	A
String 20 current	7031	U16	0.01	A
String 21 current	7032	U16	0.01	A
String 22 current	7033	U16	0.01	A
String 23 current	7034	U16	0.01	A
String 24 current	7035	U16	0.01	A

The trust ladder

Each rung states what it proved and what it did not. Gray until proven; green is earned by hardware only.

generated — A prompt produced it. Unproven — anyone can regenerate this.
structure-verified — Decode path is structurally sound (addresses, widths, finite values). Does NOT prove word order or scaling.
coherence-checked — Round-trips through a real Modbus stack with no overlapping addresses and a word-order-sensitive codec — the map is internally coherent and wire-decodable. Does NOT prove byte-order or scaling match a real device: the emulator is seeded from the map's own types, so a uniformly wrong byte-order still round-trips. Only hardware-verified confirms byte-order/scale on the wire.
hardware-verified (software-key) x1 — Matched a real device with operator-attested readings as ground truth — the only rung that confirms word order + scaling on the wire.

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