Power on

Initial processing

I/O initialization

Data memory initialization

Self-diagnostic checks

I/O refresh processing

Sequence program operation processing

Step 0

to

Until execution of END instruction

END processing

Self-diagnostic checks

Updating of timer and counter present values and on/off of their contacts

Fig 3.1 Operation Processings of Built-in PLC function

Overview

SEQUENCE PROGRAMMING

3

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Image 68
Mitsubishi Electronics FR-A700, 700 Series specifications Operation Processings of Built-in PLC function, END processing