Communication between Fronius Symo GEN24 10.0 Plus and Fronius Smart meter TS 65A-3

Every value is stored in two registers with 16 bit each. These two registers will be combined to one 32 bit value. The low word is stored at the lower address. This 32 bit value will be interpreded as singned 32 bit integer.

Read holding register for device ID 1 , Start address = 258 Quantity = 16

Every second

Reg	Description	Unit
258..259	Voltage	0.1 V
260..261	Voltage Phase Phase	0.1 V
262..263	PowerReal_P_Sum	0.1 W
264..265	PowerApparent_S_Sum	0.1 VA
266..267	PowerReactive_Q_Sum	0.1 var
268..269	PowerFactor_Sum	0.001 °
270..271	PowerReal_P_Sum OR PowerFactor_Sum OR Current_AC_Sum???
272..273	Frequency	0.1 Hz

Read holding register for device ID 1 , Start address = 286 Quantity = 42

Every second

Reg	Description	Unit
Phase 1
286..287	Voltage_AC_PhaseToPhase_12	0.1 V
288..289	Voltage_AC_Phase_1	0.1 V
290..291	Current_AC_Phase_1	mA
292..293	PowerReal_P_Phase_1	0.1 W
294..295	PowerApparent_S_Phase_1	0.1 VA
296..297	PowerReactive_Q_Phase_1	0.1 var
298..299	PowerFactor_Phase_1	0.001
Phase 2
300..301	Voltage_AC_PhaseToPhase_23	0.1 V
302..303	Voltage_AC_Phase_2	0.1 V
304..305	Current_AC_Phase_2	mA
306..307	PowerReal_P_Phase_2	0.1 W
308..309	PowerApparent_S_Phase_2	0.1 VA
310..311	PowerReactive_Q_Phase_2	0.1 var
312..313	PowerFactor_Phase_2	0.001
Phase 3
314..315	Voltage_AC_PhaseToPhase_31	0.1 V
316..317	Voltage_AC_Phase_3	0.1 V
318..319	Current_AC_Phase_3	mA
320..321	PowerReal_P_Phase_3	0.1 W
322..323	PowerApparent_S_Phase_3	0.1 VA
324..325	PowerReactive_Q_Phase_3	0.1 var
326..327	PowerFactor_Phase_3	0.001

Read holding register for device ID 1 , Start address = 1024 Quantity = 16

Every 10 seconds

Every energy value is stored in four registers.
Example for EnergyReactive_VArAC_Sum_Produced:
For example the actual energy value is 463941 Wh. The kilowatt hours (463) are stored in register 1036..1037. The watt hours (941) are stored in register 1038..1039. To get the total energy in Wh multiply register 1036..1037 by 1000 and add register 1038..1039 to it.

Reg	Description	Unit
1024..1025	EnergyReal_WAC_Plus_Absolute, EnergyReal_WAC_Sum_Consumed	kWh
1026..1027	EnergyReal_WAC_Plus_Absolute, EnergyReal_WAC_Sum_Consumed	Wh
1028..1029	EnergyReactive_VArAC_Sum_Consumed	kvarh
1030..1031	EnergyReactive_VArAC_Sum_Consumed	varh
1032..1033	EnergyReal_WAC_Minus_Absolute, EnergyReal_WAC_Sum_Produced	kWh
1034..1035	EnergyReal_WAC_Minus_Absolute, EnergyReal_WAC_Sum_Produced	Wh
1036..1037	EnergyReactive_VArAC_Sum_Produced	kvarh
1038..1039	EnergyReactive_VArAC_Sum_Produced	varh

Test conditions

Inverter

Fronius Symo GEN24 10.0 Plus
SW: 1.19.7-1 on 2023-02-28

Smart Meter

Fronius TS 65A-3