Mitsubishi Electric FX Series - Sequential Function Chart - SFC; What Is SFC

14 Sequential Function Chart - SFC
14.1 What is SFC?
쎲 The “Sequential Function Chart” editor is a guided editor.
쎲 Graphical Flowchart representation.
쎲 Based on the French Grafcet (IEC 848)
쎲 SFC is a structural language which divides the process into steps and transitions.
쎲 The steps “hide” actions ( no POUs
) and / or directly switched bit operands.
쎲 Transitions always contain one link/network which activates the progression instruction
(name of the transition).
(It is also possible to use a discrete address instead of a name.)
쎲
Actions can be created in every editor, except SFC.
쎲
Transitions can be created in every editor, except SFC.
쎲
The SFC code resides in the Micro-computer area of the plc, so allocate memory space in
PLC Parameters (A series only).
Sequential Function Chart - SFC What is SFC?
Training Manual GX IEC Developer 14 - 1