Read from modbus and convert 24bit to integer

[ketpa]

I have ADFWeb interface and convert mbus to modbus.
I have 2 variable Power and Flow as 24bit value

I used buffer parser, but it have not 24bit conversion
data from payload: {"data":[4,1844,0,17352],"buffer":[0,4,7,52,0,0,67,200]}