Summing Values

[Daniel]

You need only tag for the 'Supply' values and the you can use event script with your tag as event or resident script with interval as often you need the calculation.

Code:

function tag_sum(tag)
  local objects, result

  result = 0
  objects = grp.tag(tag)

  for _, object in ipairs(objects) do
    result = result + object.data
  end

  return result
end



sum = tag_sum('Supply')


grp.checkwrite('1/1/1', sum)

Change group address where you want to write it to.