Actions can be programs within their own right. Action_1 may be a complete ladder interlocking
routine, consisting of many networks
Each Transition can be a simple device i.e. Mitsubishi address X0, or an identifier name, or more
complex, as a single network program written in either IEC, IL, LD, Structured Text or FBD:
SFC Actions Sequential Function Chart - SFC
14 - 6 MITSUBISHI ELECTRIC