To test if your inveter supports SunSpec,
Run the following
# Build the test
docker build -t inosion/sunspec-test .
# Test an IP, with target modbus address of 126
$ docker run --rm -ti inosion/sunspec-test python3 /src/pysunspec/scripts/suns.py -i 192.168.1.40 -a 126
Timestamp: 2021-01-10T10:45:12Z
model: Common (1)
Manufacturer (Mn): SMA
Model (Md): Solar Inverter
Options (Opt): 9099
Version (Vr): VERSION
Serial Number (SN): SERIAL_NUMBER
model: Ethernet Link Layer (11)
Ethernet Link Speed (Spd): 100 Mbps
Interface Status Flags (CfgSt): 0x0003
Link State (St): 1
MAC (MAC): CA:FE:BA:BA:BE:00
model: IPv4 (12)
Config Status (CfgSt): 1
Change Status (ChgSt): 0x0000
Config Capability (Cap): 0x0005
IPv4 Config (Cfg): 1
Control (Ctl): 0
IP (Addr): 192.168.0.170
Netmask (Msk): 255.255.255.0
Gateway (Gw): 192.168.0.170
DNS1 (DNS1): 192.168.0.170
model: Inverter (Three Phase) (103)
Amps PhaseA (AphA): 3276.8 A
Amps PhaseB (AphB): 3276.8 A
Amps PhaseC (AphC): 3276.8 A
WattHours (WH): 14744840.0 Wh
Operating State (St): 0
Event1 (Evt1): 0x00000000
model: Nameplate (120)
DERTyp (DERTyp): 4
WRtg (WRtg): 6000.0 W
VARtg (VARtg): 6000.0 VA
model: Basic Settings (121)
WMax (WMax): 6000.0 W
VRef (VRef): 230 V
VRefOfs (VRefOfs): 0 V
VAMax (VAMax): 6000.0 VA
WGra (WGra): 20 % WMax/sec
ECPNomHz (ECPNomHz): 50 Hz
model: Measurements_Status (122)
PVConn (PVConn): 0x0001
ActWh (ActWh): 14744836 Wh
model: Immediate Controls (123)
WMaxLim_Ena (WMaxLim_Ena): 1
OutPFSet_Ena (OutPFSet_Ena): 0
VArPct_Mod (VArPct_Mod): 1
VArPct_Ena (VArPct_Ena): 0
model: Storage (124)
model: Static Volt-VAR (126)
NCrv (NCrv): 1
NPt (NPt): 8
01:ActPt (ActPt): 4
01:DeptRef (DeptRef): 2
01:V1 (V1): 100.0 % VRef
01:VAr1 (VAr1): 100.0
01:V2 (V2): 100.0 % VRef
01:VAr2 (VAr2): 100.0
01:V3 (V3): 100.0 % VRef
01:VAr3 (VAr3): 100.0 Various
01:V4 (V4): 100.0
01:VAr4 (VAr4): 100.0
01:V5 (V5): 100.0 % VRef
01:VAr5 (VAr5): 100.0
01:V6 (V6): 100.0 % VRef
01:VAr6 (VAr6): 100.0
01:V7 (V7): 100.0 % VRef
01:VAr7 (VAr7): 100.0
01:V8 (V8): 100.0 % VRef
01:VAr8 (VAr8): 100.0
01:ReadOnly (ReadOnly): 0
model: Freq-Watt Param (127)
WGra (WGra): 40 % PM/Hz
HzStr (HzStr): 0.2 Hz
HzStop (HzStop): 0.2 Hz
HysEna (HysEna): 0x0000
ModEna (ModEna): 0x0000
HzStopWGra (HzStopWGra): 10000 % WMax/min
model: Dynamic Reactive Current (128)
ArGraMod (ArGraMod): 1
ModEna (ModEna): 0x0000
FilTms (FilTms): 60 Secs
DbVMin (DbVMin): 65526 % VRef
DbVMax (DbVMax): 10 % VRef
BlkZnV (BlkZnV): 70 % VRef
HysBlkZnV (HysBlkZnV): 5 % VRef
BlkZnTmms (BlkZnTmms): 0 mSecs
model: Watt-PF (131)
NCrv (NCrv): 1
NPt (NPt): 12
01:ReadOnly (ReadOnly): 0
model: Volt-Watt (132)
NCrv (NCrv): 1
NPt (NPt): 8
01:ActPt (ActPt): 2
01:DeptRef (DeptRef): 2
01:V1 (V1): 100.0 % VRef
01:W1 (W1): 100.0 % VRef
01:V2 (V2): 100.0 % VRef
01:W2 (W2): 100.0 % VRef
01:V3 (V3): 100.0 % VRef
01:W3 (W3): 100.0 % VRef
01:V4 (V4): 100.0 % VRef
01:W4 (W4): 100.0 % VRef
01:V5 (V5): 100.0 % VRef
01:W5 (W5): 100.0 % VRef
01:V6 (V6): 100.0 % VRef
01:W6 (W6): 100.0 % VRef
01:V7 (V7): 100.0 % VRef
01:W7 (W7): 100.0 % VRef
01:V8 (V8): 100.0 % VRef
01:W8 (W8): 100.0 % VRef
01:RmpPt1Tms (RmpPt1Tms): 10 Secs
01:RmpDecTmm (RmpDecTmm): 12000 % WMax/min
01:RmpIncTmm (RmpIncTmm): 12000 % WMax/min
01:ReadOnly (ReadOnly): 0
model: Multiple MPPT Inverter Extension Model (160)
Number of Modules (N): 2
01:Input ID (ID): 1
02:Input ID (ID): 2