Yes, it is possible to Reset consumption in an ATV61/71 drive via Modbus, using RPR register, @: 3120.
It operates little bit differently for ATV61 than ATV71:
ATV71:
Consumption: APH @: 3230
Reset: RPR = 0 [No] (nO)
1 [reset kWh] (APH)
2 [rst. runtime] (rtH)
3 [rst runtime I] (rtHI)
4 [rst. P On t.] (PtH)
64 [Reset all] (ALL)
So, ATV71 consumption reset can be done by RPR = 1
ATV61:
Consumption: IPHR @: 3237
Reset: RPR 0 [No] (nO)
1 [reset kWh] (APH)
2 [rst. runtime] (rtH)
3 [rst runtim I] (rtHI)
4 [rst. P On t.] (PtH)
5 [kW/h Reset] (IPHr)
6 [kW/h Reset] (IPH)
64 [Reset all] (ALL)
So, ATV61 consumption reset can be done by RPR = 5
It operates little bit differently for ATV61 than ATV71:
ATV71:
Consumption: APH @: 3230
Reset: RPR = 0 [No] (nO)
1 [reset kWh] (APH)
2 [rst. runtime] (rtH)
3 [rst runtime I] (rtHI)
4 [rst. P On t.] (PtH)
64 [Reset all] (ALL)
So, ATV71 consumption reset can be done by RPR = 1
ATV61:
Consumption: IPHR @: 3237
Reset: RPR 0 [No] (nO)
1 [reset kWh] (APH)
2 [rst. runtime] (rtH)
3 [rst runtim I] (rtHI)
4 [rst. P On t.] (PtH)
5 [kW/h Reset] (IPHr)
6 [kW/h Reset] (IPH)
64 [Reset all] (ALL)
So, ATV61 consumption reset can be done by RPR = 5