Start and Stop Modes (Concepts)
Pneumatic power transmission - Sequential and combinatory automatisms

The normal operation of an automated system is the one for which it was designed. However, it is also necessary to examine the procedures for:

• getting started;

• clarification;

• failures.

These procedures are defined by the start-up and shutdown modes (MMA). Defining these modes involves defining:

• a system's operating modes: continuous automatic operation, cycle-by-cycle operation, preparatory and shutdown procedures, semi-automatic operation, etc.;

• shutdown and safety procedures; normal shutdown, shutdown to a specific state;...