Sungrow Sungrow SH-RT Modbus RTU template

Sungrow SH-RT

Three-phase hybrid inverter that manages PV panels, a battery and the grid, with a backup output.

The Sungrow SH-RT is a three-phase hybrid inverter that connects PV panels, a battery and the grid in homes and small businesses, with a backup output for outages. This Modbus RTU template reads PV, battery, grid and load values, energy counters and fault codes, and lets you write the energy management mode, battery power, SOC limits and export limits from ModbusCloud.

Protocol
Modbus RTU
Connection
RS485, 9600 baud
Registers
809, read and write
Brand
Sungrow
Key readings
PV power · Battery state of charge · Battery power · Grid power · Load power · Energy counters · Operating state · Fault and alarm codes
Available commands
Energy management mode · Battery charge and discharge power · Minimum and maximum SOC · Export limit · Forced charging periods · Load relay
Compatible models
SH5.0RT · SH6.0RT · SH8.0RT · SH10RT · SH5.0RT-20 · SH6.0RT-20 · SH8.0RT-20 · SH10RT-20 · SH5.0RT-V112 · SH6.0RT-V112 · SH8.0RT-V112 · SH10RT-V112 · SH5.0RT-V122 · SH6.0RT-V122 · SH8.0RT-V122 · SH10RT-V122 · Sungrow SH3.0-6.0RS · Sungrow SH8.0-10RS · Sungrow SH5-25T · Sungrow SH3-10RL · Sungrow MG5-12RL · Sungrow MG10-25TL · Sungrow SH50-125CX
Last updated

Registers (809)

809 read, 57 write

NameUnitAccessAddress (Hidden until you enter your email)Function (hidden)Type (hidden)
Total DC PowerWRead
Total Active PowerWRead
Load PowerWRead
Export PowerWRead
Meter Active PowerWRead
Meter Phase A Active PowerWRead
Meter Phase B Active PowerWRead
Meter Phase C Active PowerWRead
Battery PowerWRead
Battery SOC%Read
Battery SOH%Read
Battery VoltageVRead
Battery CurrentARead
Battery Temperature°CRead
Battery Current (Legacy)ARead
Battery Power (Legacy)WRead
MPPT 1 VoltageVRead
MPPT 1 CurrentARead
MPPT 2 VoltageVRead
MPPT 2 CurrentARead
MPPT 3 VoltageVRead
MPPT 3 CurrentARead
MPPT 4 VoltageVRead
MPPT 4 CurrentARead
MPPT 5 VoltageVRead
MPPT 5 CurrentARead
MPPT 6 VoltageVRead
MPPT 6 CurrentARead
MPPT 7 VoltageVRead
MPPT 7 CurrentARead
MPPT 8 VoltageVRead
MPPT 8 CurrentARead
MPPT 9 VoltageVRead
MPPT 9 CurrentARead
MPPT 10 VoltageVRead
MPPT 10 CurrentARead
Phase A VoltageVRead
Phase B VoltageVRead
Phase C VoltageVRead
Phase A CurrentARead
Phase B CurrentARead
Phase C CurrentARead
Reactive PowervarRead
Power FactorRead
Grid FrequencyHzRead
Grid Frequency (Low Resolution)HzRead
Inside Temperature°CRead
Phase A Backup CurrentARead
Phase B Backup CurrentARead
Phase C Backup CurrentARead
Phase A Backup PowerWRead
Phase B Backup PowerWRead
Phase C Backup PowerWRead
Total Backup PowerWRead
Phase A Backup VoltageVRead
Phase B Backup VoltageVRead
Phase C Backup VoltageVRead
Backup FrequencyHzRead
Channel 2 Total Active PowerWRead
Channel 2 Phase A Active PowerWRead
Channel 2 Phase B Active PowerWRead
Channel 2 Phase C Active PowerWRead
Running StateRead
Power Flow StatusRead
DRM StateRead
Inverter AlarmRead
Grid-Side FaultRead
System Fault 1Read
System Fault 2Read
DC-Side FaultRead
Permanent FaultRead
BDC-Side FaultRead
BDC-Side Permanent FaultRead
Battery FaultRead
Battery AlarmRead
BMS AlarmRead
BMS ProtectionRead
BMS Fault 1Read
BMS Fault 2Read
BMS Alarm 2Read
Daily Output EnergykWhRead
Total Output EnergykWhRead
Daily PV GenerationkWhRead
Total PV GenerationkWhRead
Daily Export Energy From PVkWhRead
Total Export Energy From PVkWhRead
Daily Battery Charge Energy From PVkWhRead
Total Battery Charge Energy From PVkWhRead
Daily Direct Energy ConsumptionkWhRead
Total Direct Energy ConsumptionkWhRead
Daily Battery Discharge EnergykWhRead
Total Battery Discharge EnergykWhRead
Daily Charge EnergykWhRead
Total Charge EnergykWhRead
Daily Import EnergykWhRead
Total Import EnergykWhRead
Daily Export EnergykWhRead
Total Export EnergykWhRead
Self-Consumption Today%Read
Battery CapacitykWhRead
Battery Capacity High PrecisionkWhRead
Max Charging Current BMSARead
Max Discharging Current BMSARead
BDC Rated PowerkWRead
Min Feed-in Power Limitation ValuekWRead
Max Feed-in Power Limitation ValuekWRead
Nominal Output PowerkWRead
Output TypeRead
Device Type CodeRead
Serial NumberRead
Protocol VersionRead
ARM Certification VersionRead
DSP Certification VersionRead
Inverter Firmware InformationRead
Communication Module Firmware InformationRead
Battery Firmware InformationRead
EMS Mode SelectionRead and write
Charge/Discharge CommandRead and write
Charge/Discharge PowerWRead and write
Charge/Discharge Power Wide RangekWRead and write
Max SOC%Read and write
Min SOC%Read and write
Reserved SOC For Backup%Read and write
Max Charging PowerkWRead and write
Max Discharging PowerkWRead and write
Charge Cutoff Voltage Wide RangeVRead and write
External EMS HeartbeatsRead and write
Feed-in LimitationRead and write
Feed-in Limitation ValueWRead and write
Feed-in Limitation Value Wide RangekWRead and write
Feed-in Limitation Ratio%Read and write
Active Power LimitationRead and write
Active Power Limit Ratio%Read and write
Off-grid OptionRead and write
Meter Comm DetectionRead and write
Forced Startup Under Low SOC StandbyRead and write
PV Power LimitationRead and write
Start/StopRead and write
Forced ChargingRead and write
Forced Charging Valid TimeRead and write
Forced Charging Start Hour 1hRead and write
Forced Charging Start Minute 1minRead and write
Forced Charging End Hour 1hRead and write
Forced Charging End Minute 1minRead and write
Forced Charging Target SOC 1%Read and write
Forced Charging Start Hour 2hRead and write
Forced Charging Start Minute 2minRead and write
Forced Charging End Hour 2hRead and write
Forced Charging End Minute 2minRead and write
Forced Charging Target SOC 2%Read and write
DO ConfigurationRead and write
Load Control ModeRead and write
Load Timing 1 Start HourhRead and write
Load Timing 1 Start MinuteminRead and write
Load Timing 1 End HourhRead and write
Load Timing 1 End MinuteminRead and write
Load Timing 2 Start HourhRead and write
Load Timing 2 Start MinuteminRead and write
Load Timing 2 End HourhRead and write
Load Timing 2 End MinuteminRead and write
Load On/OffRead and write
Load Optimized Start HourhRead and write
Load Optimized Start MinuteminRead and write
Load Optimized End HourhRead and write
Load Optimized End MinuteminRead and write
Optimized Power Of LoadWRead and write
Load Rated PowerkWRead and write
System Clock YearRead and write
System Clock MonthRead and write
System Clock DayRead and write
System Clock HourRead and write
System Clock MinuteRead and write
System Clock SecondRead and write
PV Power Today Slot 01WRead
PV Power Today Slot 02WRead
PV Power Today Slot 03WRead
PV Power Today Slot 04WRead
PV Power Today Slot 05WRead
PV Power Today Slot 06WRead
PV Power Today Slot 07WRead
PV Power Today Slot 08WRead
PV Power Today Slot 09WRead
PV Power Today Slot 10WRead
PV Power Today Slot 11WRead
PV Power Today Slot 12WRead
PV Power Today Slot 13WRead
PV Power Today Slot 14WRead
PV Power Today Slot 15WRead
PV Power Today Slot 16WRead
PV Power Today Slot 17WRead
PV Power Today Slot 18WRead
PV Power Today Slot 19WRead
PV Power Today Slot 20WRead
PV Power Today Slot 21WRead
PV Power Today Slot 22WRead
PV Power Today Slot 23WRead
PV Power Today Slot 24WRead
PV Power Today Slot 25WRead
PV Power Today Slot 26WRead
PV Power Today Slot 27WRead
PV Power Today Slot 28WRead
PV Power Today Slot 29WRead
PV Power Today Slot 30WRead
PV Power Today Slot 31WRead
PV Power Today Slot 32WRead
PV Power Today Slot 33WRead
PV Power Today Slot 34WRead
PV Power Today Slot 35WRead
PV Power Today Slot 36WRead
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PV Power Today Slot 39WRead
PV Power Today Slot 40WRead
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PV Power Today Slot 44WRead
PV Power Today Slot 45WRead
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PV Power Today Slot 48WRead
PV Power Today Slot 49WRead
PV Power Today Slot 50WRead
PV Power Today Slot 51WRead
PV Power Today Slot 52WRead
PV Power Today Slot 53WRead
PV Power Today Slot 54WRead
PV Power Today Slot 55WRead
PV Power Today Slot 56WRead
PV Power Today Slot 57WRead
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PV Power Today Slot 60WRead
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PV Power Today Slot 62WRead
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PV Power Today Slot 64WRead
PV Power Today Slot 65WRead
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PV Power Today Slot 67WRead
PV Power Today Slot 68WRead
PV Power Today Slot 69WRead
PV Power Today Slot 70WRead
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PV Power Today Slot 72WRead
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PV Power Today Slot 75WRead
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PV Power Today Slot 77WRead
PV Power Today Slot 78WRead
PV Power Today Slot 79WRead
PV Power Today Slot 80WRead
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PV Power Today Slot 82WRead
PV Power Today Slot 83WRead
PV Power Today Slot 84WRead
PV Power Today Slot 85WRead
PV Power Today Slot 86WRead
PV Power Today Slot 87WRead
PV Power Today Slot 88WRead
PV Power Today Slot 89WRead
PV Power Today Slot 90WRead
PV Power Today Slot 91WRead
PV Power Today Slot 92WRead
PV Power Today Slot 93WRead
PV Power Today Slot 94WRead
PV Power Today Slot 95WRead
PV Power Today Slot 96WRead
Daily PV Yield Day 1kWhRead
Daily PV Yield Day 2kWhRead
Daily PV Yield Day 3kWhRead
Daily PV Yield Day 4kWhRead
Daily PV Yield Day 5kWhRead
Daily PV Yield Day 6kWhRead
Daily PV Yield Day 7kWhRead
Daily PV Yield Day 8kWhRead
Daily PV Yield Day 9kWhRead
Daily PV Yield Day 10kWhRead
Daily PV Yield Day 11kWhRead
Daily PV Yield Day 12kWhRead
Daily PV Yield Day 13kWhRead
Daily PV Yield Day 14kWhRead
Daily PV Yield Day 15kWhRead
Daily PV Yield Day 16kWhRead
Daily PV Yield Day 17kWhRead
Daily PV Yield Day 18kWhRead
Daily PV Yield Day 19kWhRead
Daily PV Yield Day 20kWhRead
Daily PV Yield Day 21kWhRead
Daily PV Yield Day 22kWhRead
Daily PV Yield Day 23kWhRead
Daily PV Yield Day 24kWhRead
Daily PV Yield Day 25kWhRead
Daily PV Yield Day 26kWhRead
Daily PV Yield Day 27kWhRead
Daily PV Yield Day 28kWhRead
Daily PV Yield Day 29kWhRead
Daily PV Yield Day 30kWhRead
Daily PV Yield Day 31kWhRead
Monthly PV Yield Month 1kWhRead
Monthly PV Yield Month 2kWhRead
Monthly PV Yield Month 3kWhRead
Monthly PV Yield Month 4kWhRead
Monthly PV Yield Month 5kWhRead
Monthly PV Yield Month 6kWhRead
Monthly PV Yield Month 7kWhRead
Monthly PV Yield Month 8kWhRead
Monthly PV Yield Month 9kWhRead
Monthly PV Yield Month 10kWhRead
Monthly PV Yield Month 11kWhRead
Monthly PV Yield Month 12kWhRead
Yearly PV Yield Year 1kWhRead
Yearly PV Yield Year 2kWhRead
Yearly PV Yield Year 3kWhRead
Yearly PV Yield Year 4kWhRead
Yearly PV Yield Year 5kWhRead
Yearly PV Yield Year 6kWhRead
Yearly PV Yield Year 7kWhRead
Yearly PV Yield Year 8kWhRead
Yearly PV Yield Year 9kWhRead
Yearly PV Yield Year 10kWhRead
Yearly PV Yield Year 11kWhRead
Yearly PV Yield Year 12kWhRead
Yearly PV Yield Year 13kWhRead
Yearly PV Yield Year 14kWhRead
Yearly PV Yield Year 15kWhRead
Yearly PV Yield Year 16kWhRead
Yearly PV Yield Year 17kWhRead
Yearly PV Yield Year 18kWhRead
Yearly PV Yield Year 19kWhRead
Yearly PV Yield Year 20kWhRead
PV Direct Consumption Power Today Slot 01WRead
PV Direct Consumption Power Today Slot 02WRead
PV Direct Consumption Power Today Slot 03WRead
PV Direct Consumption Power Today Slot 04WRead
PV Direct Consumption Power Today Slot 05WRead
PV Direct Consumption Power Today Slot 06WRead
PV Direct Consumption Power Today Slot 07WRead
PV Direct Consumption Power Today Slot 08WRead
PV Direct Consumption Power Today Slot 09WRead
PV Direct Consumption Power Today Slot 10WRead
PV Direct Consumption Power Today Slot 11WRead
PV Direct Consumption Power Today Slot 12WRead
PV Direct Consumption Power Today Slot 13WRead
PV Direct Consumption Power Today Slot 14WRead
PV Direct Consumption Power Today Slot 15WRead
PV Direct Consumption Power Today Slot 16WRead
PV Direct Consumption Power Today Slot 17WRead
PV Direct Consumption Power Today Slot 18WRead
PV Direct Consumption Power Today Slot 19WRead
PV Direct Consumption Power Today Slot 20WRead
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PV Direct Consumption Power Today Slot 24WRead
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PV Direct Consumption Power Today Slot 27WRead
PV Direct Consumption Power Today Slot 28WRead
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PV Direct Consumption Power Today Slot 30WRead
PV Direct Consumption Power Today Slot 31WRead
PV Direct Consumption Power Today Slot 32WRead
PV Direct Consumption Power Today Slot 33WRead
PV Direct Consumption Power Today Slot 34WRead
PV Direct Consumption Power Today Slot 35WRead
PV Direct Consumption Power Today Slot 36WRead
PV Direct Consumption Power Today Slot 37WRead
PV Direct Consumption Power Today Slot 38WRead
PV Direct Consumption Power Today Slot 39WRead
PV Direct Consumption Power Today Slot 40WRead
PV Direct Consumption Power Today Slot 41WRead
PV Direct Consumption Power Today Slot 42WRead
PV Direct Consumption Power Today Slot 43WRead
PV Direct Consumption Power Today Slot 44WRead
PV Direct Consumption Power Today Slot 45WRead
PV Direct Consumption Power Today Slot 46WRead
PV Direct Consumption Power Today Slot 47WRead
PV Direct Consumption Power Today Slot 48WRead
PV Direct Consumption Power Today Slot 49WRead
PV Direct Consumption Power Today Slot 50WRead
PV Direct Consumption Power Today Slot 51WRead
PV Direct Consumption Power Today Slot 52WRead
PV Direct Consumption Power Today Slot 53WRead
PV Direct Consumption Power Today Slot 54WRead
PV Direct Consumption Power Today Slot 55WRead
PV Direct Consumption Power Today Slot 56WRead
PV Direct Consumption Power Today Slot 57WRead
PV Direct Consumption Power Today Slot 58WRead
PV Direct Consumption Power Today Slot 59WRead
PV Direct Consumption Power Today Slot 60WRead
PV Direct Consumption Power Today Slot 61WRead
PV Direct Consumption Power Today Slot 62WRead
PV Direct Consumption Power Today Slot 63WRead
PV Direct Consumption Power Today Slot 64WRead
PV Direct Consumption Power Today Slot 65WRead
PV Direct Consumption Power Today Slot 66WRead
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PV Direct Consumption Power Today Slot 68WRead
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PV Direct Consumption Power Today Slot 70WRead
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PV Direct Consumption Power Today Slot 74WRead
PV Direct Consumption Power Today Slot 75WRead
PV Direct Consumption Power Today Slot 76WRead
PV Direct Consumption Power Today Slot 77WRead
PV Direct Consumption Power Today Slot 78WRead
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PV Direct Consumption Power Today Slot 80WRead
PV Direct Consumption Power Today Slot 81WRead
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PV Direct Consumption Power Today Slot 84WRead
PV Direct Consumption Power Today Slot 85WRead
PV Direct Consumption Power Today Slot 86WRead
PV Direct Consumption Power Today Slot 87WRead
PV Direct Consumption Power Today Slot 88WRead
PV Direct Consumption Power Today Slot 89WRead
PV Direct Consumption Power Today Slot 90WRead
PV Direct Consumption Power Today Slot 91WRead
PV Direct Consumption Power Today Slot 92WRead
PV Direct Consumption Power Today Slot 93WRead
PV Direct Consumption Power Today Slot 94WRead
PV Direct Consumption Power Today Slot 95WRead
PV Direct Consumption Power Today Slot 96WRead
Daily PV Direct Consumption Day 1kWhRead
Daily PV Direct Consumption Day 2kWhRead
Daily PV Direct Consumption Day 3kWhRead
Daily PV Direct Consumption Day 4kWhRead
Daily PV Direct Consumption Day 5kWhRead
Daily PV Direct Consumption Day 6kWhRead
Daily PV Direct Consumption Day 7kWhRead
Daily PV Direct Consumption Day 8kWhRead
Daily PV Direct Consumption Day 9kWhRead
Daily PV Direct Consumption Day 10kWhRead
Daily PV Direct Consumption Day 11kWhRead
Daily PV Direct Consumption Day 12kWhRead
Daily PV Direct Consumption Day 13kWhRead
Daily PV Direct Consumption Day 14kWhRead
Daily PV Direct Consumption Day 15kWhRead
Daily PV Direct Consumption Day 16kWhRead
Daily PV Direct Consumption Day 17kWhRead
Daily PV Direct Consumption Day 18kWhRead
Daily PV Direct Consumption Day 19kWhRead
Daily PV Direct Consumption Day 20kWhRead
Daily PV Direct Consumption Day 21kWhRead
Daily PV Direct Consumption Day 22kWhRead
Daily PV Direct Consumption Day 23kWhRead
Daily PV Direct Consumption Day 24kWhRead
Daily PV Direct Consumption Day 25kWhRead
Daily PV Direct Consumption Day 26kWhRead
Daily PV Direct Consumption Day 27kWhRead
Daily PV Direct Consumption Day 28kWhRead
Daily PV Direct Consumption Day 29kWhRead
Daily PV Direct Consumption Day 30kWhRead
Daily PV Direct Consumption Day 31kWhRead
Monthly PV Direct Consumption Month 1kWhRead
Monthly PV Direct Consumption Month 2kWhRead
Monthly PV Direct Consumption Month 3kWhRead
Monthly PV Direct Consumption Month 4kWhRead
Monthly PV Direct Consumption Month 5kWhRead
Monthly PV Direct Consumption Month 6kWhRead
Monthly PV Direct Consumption Month 7kWhRead
Monthly PV Direct Consumption Month 8kWhRead
Monthly PV Direct Consumption Month 9kWhRead
Monthly PV Direct Consumption Month 10kWhRead
Monthly PV Direct Consumption Month 11kWhRead
Monthly PV Direct Consumption Month 12kWhRead
Yearly PV Direct Consumption Year 1kWhRead
Yearly PV Direct Consumption Year 2kWhRead
Yearly PV Direct Consumption Year 3kWhRead
Yearly PV Direct Consumption Year 4kWhRead
Yearly PV Direct Consumption Year 5kWhRead
Yearly PV Direct Consumption Year 6kWhRead
Yearly PV Direct Consumption Year 7kWhRead
Yearly PV Direct Consumption Year 8kWhRead
Yearly PV Direct Consumption Year 9kWhRead
Yearly PV Direct Consumption Year 10kWhRead
Yearly PV Direct Consumption Year 11kWhRead
Yearly PV Direct Consumption Year 12kWhRead
Yearly PV Direct Consumption Year 13kWhRead
Yearly PV Direct Consumption Year 14kWhRead
Yearly PV Direct Consumption Year 15kWhRead
Yearly PV Direct Consumption Year 16kWhRead
Yearly PV Direct Consumption Year 17kWhRead
Yearly PV Direct Consumption Year 18kWhRead
Yearly PV Direct Consumption Year 19kWhRead
Yearly PV Direct Consumption Year 20kWhRead
PV Export Power Today Slot 01WRead
PV Export Power Today Slot 02WRead
PV Export Power Today Slot 03WRead
PV Export Power Today Slot 04WRead
PV Export Power Today Slot 05WRead
PV Export Power Today Slot 06WRead
PV Export Power Today Slot 07WRead
PV Export Power Today Slot 08WRead
PV Export Power Today Slot 09WRead
PV Export Power Today Slot 10WRead
PV Export Power Today Slot 11WRead
PV Export Power Today Slot 12WRead
PV Export Power Today Slot 13WRead
PV Export Power Today Slot 14WRead
PV Export Power Today Slot 15WRead
PV Export Power Today Slot 16WRead
PV Export Power Today Slot 17WRead
PV Export Power Today Slot 18WRead
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PV Export Power Today Slot 20WRead
PV Export Power Today Slot 21WRead
PV Export Power Today Slot 22WRead
PV Export Power Today Slot 23WRead
PV Export Power Today Slot 24WRead
PV Export Power Today Slot 25WRead
PV Export Power Today Slot 26WRead
PV Export Power Today Slot 27WRead
PV Export Power Today Slot 28WRead
PV Export Power Today Slot 29WRead
PV Export Power Today Slot 30WRead
PV Export Power Today Slot 31WRead
PV Export Power Today Slot 32WRead
PV Export Power Today Slot 33WRead
PV Export Power Today Slot 34WRead
PV Export Power Today Slot 35WRead
PV Export Power Today Slot 36WRead
PV Export Power Today Slot 37WRead
PV Export Power Today Slot 38WRead
PV Export Power Today Slot 39WRead
PV Export Power Today Slot 40WRead
PV Export Power Today Slot 41WRead
PV Export Power Today Slot 42WRead
PV Export Power Today Slot 43WRead
PV Export Power Today Slot 44WRead
PV Export Power Today Slot 45WRead
PV Export Power Today Slot 46WRead
PV Export Power Today Slot 47WRead
PV Export Power Today Slot 48WRead
PV Export Power Today Slot 49WRead
PV Export Power Today Slot 50WRead
PV Export Power Today Slot 51WRead
PV Export Power Today Slot 52WRead
PV Export Power Today Slot 53WRead
PV Export Power Today Slot 54WRead
PV Export Power Today Slot 55WRead
PV Export Power Today Slot 56WRead
PV Export Power Today Slot 57WRead
PV Export Power Today Slot 58WRead
PV Export Power Today Slot 59WRead
PV Export Power Today Slot 60WRead
PV Export Power Today Slot 61WRead
PV Export Power Today Slot 62WRead
PV Export Power Today Slot 63WRead
PV Export Power Today Slot 64WRead
PV Export Power Today Slot 65WRead
PV Export Power Today Slot 66WRead
PV Export Power Today Slot 67WRead
PV Export Power Today Slot 68WRead
PV Export Power Today Slot 69WRead
PV Export Power Today Slot 70WRead
PV Export Power Today Slot 71WRead
PV Export Power Today Slot 72WRead
PV Export Power Today Slot 73WRead
PV Export Power Today Slot 74WRead
PV Export Power Today Slot 75WRead
PV Export Power Today Slot 76WRead
PV Export Power Today Slot 77WRead
PV Export Power Today Slot 78WRead
PV Export Power Today Slot 79WRead
PV Export Power Today Slot 80WRead
PV Export Power Today Slot 81WRead
PV Export Power Today Slot 82WRead
PV Export Power Today Slot 83WRead
PV Export Power Today Slot 84WRead
PV Export Power Today Slot 85WRead
PV Export Power Today Slot 86WRead
PV Export Power Today Slot 87WRead
PV Export Power Today Slot 88WRead
PV Export Power Today Slot 89WRead
PV Export Power Today Slot 90WRead
PV Export Power Today Slot 91WRead
PV Export Power Today Slot 92WRead
PV Export Power Today Slot 93WRead
PV Export Power Today Slot 94WRead
PV Export Power Today Slot 95WRead
PV Export Power Today Slot 96WRead
Daily PV Export Day 1kWhRead
Daily PV Export Day 2kWhRead
Daily PV Export Day 3kWhRead
Daily PV Export Day 4kWhRead
Daily PV Export Day 5kWhRead
Daily PV Export Day 6kWhRead
Daily PV Export Day 7kWhRead
Daily PV Export Day 8kWhRead
Daily PV Export Day 9kWhRead
Daily PV Export Day 10kWhRead
Daily PV Export Day 11kWhRead
Daily PV Export Day 12kWhRead
Daily PV Export Day 13kWhRead
Daily PV Export Day 14kWhRead
Daily PV Export Day 15kWhRead
Daily PV Export Day 16kWhRead
Daily PV Export Day 17kWhRead
Daily PV Export Day 18kWhRead
Daily PV Export Day 19kWhRead
Daily PV Export Day 20kWhRead
Daily PV Export Day 21kWhRead
Daily PV Export Day 22kWhRead
Daily PV Export Day 23kWhRead
Daily PV Export Day 24kWhRead
Daily PV Export Day 25kWhRead
Daily PV Export Day 26kWhRead
Daily PV Export Day 27kWhRead
Daily PV Export Day 28kWhRead
Daily PV Export Day 29kWhRead
Daily PV Export Day 30kWhRead
Daily PV Export Day 31kWhRead
Monthly PV Export Month 1kWhRead
Monthly PV Export Month 2kWhRead
Monthly PV Export Month 3kWhRead
Monthly PV Export Month 4kWhRead
Monthly PV Export Month 5kWhRead
Monthly PV Export Month 6kWhRead
Monthly PV Export Month 7kWhRead
Monthly PV Export Month 8kWhRead
Monthly PV Export Month 9kWhRead
Monthly PV Export Month 10kWhRead
Monthly PV Export Month 11kWhRead
Monthly PV Export Month 12kWhRead
Yearly PV Export Year 1kWhRead
Yearly PV Export Year 2kWhRead
Yearly PV Export Year 3kWhRead
Yearly PV Export Year 4kWhRead
Yearly PV Export Year 5kWhRead
Yearly PV Export Year 6kWhRead
Yearly PV Export Year 7kWhRead
Yearly PV Export Year 8kWhRead
Yearly PV Export Year 9kWhRead
Yearly PV Export Year 10kWhRead
Yearly PV Export Year 11kWhRead
Yearly PV Export Year 12kWhRead
Yearly PV Export Year 13kWhRead
Yearly PV Export Year 14kWhRead
Yearly PV Export Year 15kWhRead
Yearly PV Export Year 16kWhRead
Yearly PV Export Year 17kWhRead
Yearly PV Export Year 18kWhRead
Yearly PV Export Year 19kWhRead
Yearly PV Export Year 20kWhRead
Battery Charge Power Today Slot 01WRead
Battery Charge Power Today Slot 02WRead
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Battery Charge Power Today Slot 05WRead
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Battery Charge Power Today Slot 10WRead
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Battery Charge Power Today Slot 20WRead
Battery Charge Power Today Slot 21WRead
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Battery Charge Power Today Slot 23WRead
Battery Charge Power Today Slot 24WRead
Battery Charge Power Today Slot 25WRead
Battery Charge Power Today Slot 26WRead
Battery Charge Power Today Slot 27WRead
Battery Charge Power Today Slot 28WRead
Battery Charge Power Today Slot 29WRead
Battery Charge Power Today Slot 30WRead
Battery Charge Power Today Slot 31WRead
Battery Charge Power Today Slot 32WRead
Battery Charge Power Today Slot 33WRead
Battery Charge Power Today Slot 34WRead
Battery Charge Power Today Slot 35WRead
Battery Charge Power Today Slot 36WRead
Battery Charge Power Today Slot 37WRead
Battery Charge Power Today Slot 38WRead
Battery Charge Power Today Slot 39WRead
Battery Charge Power Today Slot 40WRead
Battery Charge Power Today Slot 41WRead
Battery Charge Power Today Slot 42WRead
Battery Charge Power Today Slot 43WRead
Battery Charge Power Today Slot 44WRead
Battery Charge Power Today Slot 45WRead
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Battery Charge Power Today Slot 47WRead
Battery Charge Power Today Slot 48WRead
Battery Charge Power Today Slot 49WRead
Battery Charge Power Today Slot 50WRead
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If a device is not in the library yet, we build the template for free as soon as we have the register data.

Number of installations (optional)

Use cases

  • Show PV power, battery state of charge, grid power and house consumption side by side on one dashboard.
  • Get an alert when a fault or alarm word is not 0, so you know about a battery or grid fault before the customer calls.
  • Compare daily PV yield, self-consumption and grid import over the year with the stored history.
  • Adjust the export limit or the minimum SOC remotely when the customer changes contract or wants more backup reserve.
  • Charge the battery at a set power during cheap hours with an automation that writes the battery command.

Installation

  1. Connect the RS485 A and B wires of the inverter communication terminal to the RS485 port of the ModbusCloud Gateway, with a 120 ohm terminator at the end of the line.

  2. Check on the inverter or in the Sungrow app that the Modbus address is 1 and the link is 9600 baud, 8 data bits, no parity, 1 stop bit.

  3. In ModbusCloud, add a Modbus device with protocol RTU, address 1 and these serial settings, and import this template.

  4. Check that Device Type Code shows your inverter model and Battery SOC a plausible value.

  5. If you use a WiNet-S instead of RS485, add the device as Modbus TCP with the WiNet-S IP address, port 502 and unit ID 1.

Things to watch for

The inverter does not answer. What should I check?

Check address 1 and 9600 baud, 8 data bits, no parity, 1 stop bit. Swap A and B if nothing comes back, and terminate the line with 120 ohm. Wait at least one second between requests; the inverter needs up to 1000 ms to answer.

Why are grid power, load power and export energy always 0?

Grid, load and export values only work when a Sungrow smart meter is connected directly to the inverter. Without a meter the inverter cannot see the grid connection point. The per-phase meter values also need a three-phase meter.

Some values show 6553.5, 65535 or a very large number. Is the template wrong?

The inverter answers 0xFFFF or 0x7FFF for values it does not have. The SH-RT has two MPPTs, so MPPT 3 to 10 show this, as do backup values without a backup load and channel 2 without a dual-channel meter. You can hide those registers in ModbusCloud.

How do I write battery commands, and why does the inverter go back to self-consumption?

Writing registers is off per gateway by default; request it for the gateway in the portal. Set the energy management mode to compulsory mode (2), then the charge or discharge command and power. External EMS and VPP mode fall back to self-consumption when the heartbeat is not refreshed in time.

The history and BMS fault values stay empty over a WiNet-S. Why?

The history for today and per day, month and year is not available through a WiNet-S or Logger, only on the inverter RS485 port. BMS alarm and fault words are answered at the battery address (for example 200), so add a second Modbus device with that address for them.

Want to see how it works?

Electrician working in an open distribution board