Mitsubishi Electric FX3G SERIES Programming Manual page 781

Programmable controllers

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Table of Contents

Series Programmable Controllers

Programming Manual - Basic & Applied Instruction Edition

The partial skip flow shown on the previous page can be expressed in a flow of selective branches and recombination

as shown below.

Make sure that a flow proceeds from top to bottom, and that a flow does not cross except branch lines and

recombination lines.

Ladder block

Initial pulse

Dummy state relay

For example, if X001 turns ON while the state relay S20 is ON,

the state relay S32 turns ON; The contact of S32 turns ON, and

the ON status is immediately transferred to the state relay S27.

Because one or more state relays are required in a branch line,

dummy states are provided for this purpose.

35 SFC Program and Step Ladder

35.1 SFC Program

Fx3u series Fx3uc series