Peak load limiter

[Domoticatorino]

Hi,

I created this a while ago, maybe it could help you in your task.

Code:

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-- Set adresses address_max = '1/1/2' address_hyst = '1/1/3' address_relais1 = '1/1/4' address_relais2 = '1/1/5' address_relais3 = '1/1/6' address_relais4 = '1/1/7' -- Get measured power power = event.getvalue() -- Get limit value max = grp.getvalue(address_max) -- Get Hysteresis hyst = grp.getvalue(address_hyst) -- Calculate floor value hyst_floor = math.floor((max - hyst) + 0.5) -- Check if chanels need to be turned on if power < hyst_floor then    -- get current state of relais 4  current_state_relais4 = grp.getvalue(address_relais4)  if current_state_relais4 == false then     grp.write(address_relais4, true)     -- exit script and after that cascade to chanel 3      return  end    -- get current state of relais 3  current_state_relais3 = grp.getvalue(address_relais3)  if current_state_relais3 == false then     grp.write(address_relais3, true)     -- exit script and after that cascade to chanel 2      return  end   -- get current state of relais 2  current_state_relais2 = grp.getvalue(address_relais2)  if current_state_relais2 == false then     grp.write(address_relais2, true)     -- exit script and after that cascade to chanel 1      return  end  -- get current state of relais 1  current_state_relais1 = grp.getvalue(address_relais1)  if current_state_relais1 == false then     grp.write(address_relais1, true)    -- exit script      return  end end -- Check if chanel 1 need to be turned off, after that cascade to chanel 2, then cascade to chanel 3 etcetera if power > max then  -- get current state of relais 1  current_state_relais1 = grp.getvalue(address_relais1)  if current_state_relais1 == true then    grp.write(address_relais1, false)  else      -- get current state of relais 2      current_state_relais2 = grp.getvalue(address_relais2)      if current_state_relais2 == true then        grp.write(address_relais2, false)    else           -- get current state of relais 3           current_state_relais3 = grp.getvalue(address_relais3)           if current_state_relais3 == true then             grp.write(address_relais3, false)         else               -- get current state of relais 4              current_state_relais4 = grp.getvalue(address_relais4)              if current_state_relais4 == true then                grp.write(address_relais4, false)              end           end      end  end end

BR,

Erwin

Hi Erwin,
I have some question about this script. 

1. Is this a resident script or event base script? 
2 If is it a resident script which is the refresh time? In case it was a event base script, what is the event base object?
3 Power, hyst and power limit are 4 byte floating point object as per Watt?

Thank you for your help.

regards.