VAV logic

[admin]

Add a common tag to all cooling cmd input group addresses and summer/winter group address. Attach an event script to this tag. Modify group addresses, value presets and setpoints as needed.

Code:

value = grp.getvalue('0/0/1')
mode = value and 'summer' or 'winter'

items = {
  {
    input = '0/0/21', -- command value
    output = '0/0/22', -- damper control
    summer = {
      on_value = 100,
      off_value = 35,
      on_setpoint = 650,
      off_setpoint = 390,
    },
    winter = {
      on_value = 70,
      off_value = 0,
      on_setpoint = 450,
      off_setpoint = 250,
    },
  },
  {
    input = '0/0/23', -- command value
    output = '0/0/24', -- damper control
    summer = {
      on_value = 100,
      off_value = 35,
      on_setpoint = 650,
      off_setpoint = 390,
    },
    winter = {
      on_value = 70,
      off_value = 0,
      on_setpoint = 450,
      off_setpoint = 250,
    },
  },
  {
    input = '0/0/25', -- command value
    output = '0/0/26', -- damper control
    summer = {
      on_value = 100,
      off_value = 35,
      on_setpoint = 650,
      off_setpoint = 390,
    },
    winter = {
      on_value = 70,
      off_value = 0,
      on_setpoint = 450,
      off_setpoint = 250,
    },
  },
  {
    input = '0/0/27', -- command value
    output = '0/0/28', -- damper control
    summer = {
      on_value = 100,
      off_value = 35,
      on_setpoint = 650,
      off_setpoint = 390,
    },
    winter = {
      on_value = 70,
      off_value = 0,
      on_setpoint = 450,
      off_setpoint = 250,
    },
  },
}

setpoint = 0

for _, item in ipairs(items) do
  conf = item[ mode ]
  value = grp.getvalue(item.input)
  key = toboolean(value) and 'on' or 'off'

  grp.checkwrite(item.output, conf[key .. '_value'])
  setpoint = setpoint + conf[key .. '_setpoint']
end

grp.checkupdate('0/0/3', setpoint)