35.1.11 Program Examples - Mitsubishi Electric FX3G SERIES Programming Manual

Programmable controllers

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Series Programmable Controllers

Programming Manual - Basic & Applied Instruction Edition

6. It is not permitted to cross flows in SFC programs.

Change a flow on the left to a flow on the right. This change enables inverse conversion from a program on the

instruction word basis into an SFC program. (The flow on the left cannot be converted into an SFC program.)

35.1.11 Program examples

Examples of single flows

1. Example of flicker circuit

When the PLC mode is changed from STOP to RUN, the state relay S3 is driven by the initial pulse (M8002).

The state relay S3 outputs Y000. One second later, the ON status transfers to the state relay S20.

The state relay S20 outputs Y001. 1.5 seconds later, the ON status returns to the state relay S3.

Cross is not

Ladder block

Initial pulse

35 SFC Program and Step Ladder

35.1 SFC Program

Fx3u series Fx3uc series