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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