Cool Heat Changeover

[KoBra]

Has anyone already built a script before that can act as a comparitor to see if multiple zones are on cooling, heating or off and to get an output of the mode where the most units are in?

If not i have to start making something myself :-)

[admin]

Assign a common tag to all zone status objects. Map an event script to this tag. It will write true when more than half of tagged objects are true, false otherwise. Make sure that the status output object is not mapped to the same tag.

Code:

function tag_status(tag)
  local result, objects, count, halfcount

  result = false
  objects = grp.tag(tag)
  count = 0
  halfcount = math.floor(#objects / 2)

  for _, object in ipairs(objects) do
    if object.data then
      count = count + 1
    end
  end

  return count > halfcount
end

res = tag_status('central')
grp.checkupdate('1/1/1', res)

[KoBra]

ok but what if i have 6 units and 1 is on in cool and 2 are on in heat? than i need heat output.

[admin]

Do you mean that there are two objects - heat/cool and on/off status? In this case two tags are needed - central_onoff for on/off status objects and central_state for heat/cool status. Objects must be assigned in a way that they follow the same group address order for both objects. For example 1/1/1 and 1/2/1 - device A, 1/1/2 and 1/2/2 - device B and so on. Gaps between group addresses is ok.

Code:

function tag_status(onoff_tag, state_tag)
  local function sorter(a, b)
    return a.id < b.id
  end

  local result = false

  local onoff_objs = grp.tag(onoff_tag)
  local state_objs = grp.tag(state_tag)

  table.sort(onoff_objs, sorter)
  table.sort(state_objs, sorter)

  local onoff_count = 0
  local state_count = 0

  for i, onoff_obj in ipairs(onoff_objs) do
    if onoff_obj.data then
      onoff_count = onoff_count + 1

      local state_obj = state_objs[ i ]
      if state_obj.data then
        state_count = state_count + 1
      end
    end
  end

  return state_count > math.floor(onoff_count / 2)
end

res = tag_status('central_onoff', 'central_state')
grp.checkupdate('1/1/1', res)