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Add master modality Master Manual Low Level (MMLL)

The current master operating modality Manual Control should be converted to a new modality Master Manual Low Level (MMLL) that allows an operator to:

  • manually recover/bootstrap the motor
  • physically operate in the stirling plant (replacing sensors, slaves...)

For these reasons, the MMLL should:

  • allow to open/close every stirling attuator (primary switch, secondary switch, input valve, output valve, bypass valve, recharge valve, water pump, safety blower)
  • be accessible from Manual Mode High Level and Error modes (see picture)
  • be the default master's functional modality at boot
  • account/show any alarm or error that could arise during operation, but in no case should take any automatic action (like changing attuators status or moving the dish),
  • never be left, unless specifically requested by the operator.

The absence of any automatic intervention by the master makes the operator fully responsible of the taken actions: in this modality wrong actions can severely damage the plant.

The figure below sums up the interaction between master's functional modalities. Contest_Master_FSM.svg

@roccabruna Is this ok? Or should the MMLL mode allow to take some actions in function of the oil status?