Mitsubishi Electric A173UHCPU Programming Manual page 130

5. SEQUENCE PROGRAMS AND SFC PROGRAMS
POINTS
(1) If an SVST/CHGA instruction is edited and converted, a start accept bit
(M2001+n) is automatically inserted into the switching conditions before
and after the relevant SFC step to act as an interlock.
(2) If a CHGV instruction is edited and converted, a speed change in progress
flag (M2061 to M2092) is automatically inserted into the switching
conditions before and after the relevant SFC step to act as an interlock.
(3) Set commands such as speed change commands and stop commands,
which are executed in an arbitrary timing, in the main sequence program.
(4) For details on how to operate peripheral devices used to edit and monitor
SFC programs, refer to the SW2SRX-GSV13PE Operating Manual and
SW2SRX-GSV22PE Operating Manual.
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