Please refer to 5.4.3 “Parameter Setting” to enable Datahub communication loss shutdown and Datahub
communication connection startup. The corresponding Modbus addresses are respectively: 6152 and 6153; Set value:
“0”: Disable, “1”: Enable.
Datahub communication refers to: i) The communication between Datahub and inverters; ii) The communication
between Datahub and meters.
“Feed-in Buffer” is divided into 4 gears: “Disable”, “Low”, “Mid”, “High”.
The representative threshold values for each gear are respectively: 1%, 2.5%, 4.5% and 6.5%.
The definition of those threshold values is:
1. Except for “Disable”, when the load in other 3 gears is stable, taking power from the grid [the total power of
grid-connected inverter * threshold value] is preferred; In the “Disable” gear, when the load is stable, the output
power of grid-connected inverter ranges from [taking 1% of power] to [selling 1% of power]. [Selling 0% of
power] cannot be guaranteed, but less power will be taken from the grid.
2. When the load fluctuates within the range of [the total power of grid-connected inverter * threshold value], the
power of grid-connected inverter will not drop to 0 directly; Otherwise, the power of grid-connected inverter will
drop to 0 immediately and then the power will increase slowly.
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