Resident script pump circulation

[admin]

1. Add tag valve to your valve objects. Create an event script that is mapped to valve tag:

Code:

-- get OR'ed value of all tagged objects
value = false
objects = grp.tag('valve')
for _, object in ipairs(objects) do
  value = value or object.value
end

if value then
  -- save pump timer if timer has not been started yet
  time = storage.get('pump_on_time', 0)
  if time == 0 then
    storage.set('pump_on_time', os.time())
  end
else
  -- turn pump off
  storage.set('pump_on_time', 0)
  grp.checkwrite('pump', false)
end

2. Create either a resident script with large sleep time or a scheduled script that runs every minute:

Code:

-- turn pump on when time delta >= 5 minutes
time = storage.get('pump_on_time', 0)
if time > 0 then
  delta = os.time() - time

  if delta >= 5 * 60 then
    grp.checkwrite('pump', true)
  end
else
  grp.checkwrite('pump', false)
end

In both scripts replace pump with pump object name or group address.