Fronius inverter JSON integration

[victor.back]

Hi.

Is it possible to write this if condition in a modbus profile for automatic scale the values dependent on how big it is, for easier reading it? 

Code:

-- Total power ever
r1, r2, r3, r4 = mb:readregisters(509, 4)
if r1 then
  value = r1 * 0x1000000000000 + r2 * 0x100000000 + r3 * 0x10000 + r4
  currentvalue = grp.getvalue('32/1/55')
  if tonumber(currentvalue) ~= value then
    if value > 999999999 then
        units = 'GWh'
          value = value / 1000000000
    elseif value > 999999 then
          units = 'MWh'
          value = value / 1000000
        else
          units = 'KWh'
          value = value / 1000
        end
        value = string.format('%.2f', value) .. units
        grp.checkupdate('32/1/55', value)
  end
end