Mitsubishi Q Series - Changing an Active Step Status (Cannot be Used for Basic Model QCPU and Universal Model QCPU)

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6 SFC PROGRAM EXECUTION
MELSEC-Q
6.4.3 Changing an active step status (Cannot be used for Basic model QCPU
and Universal model QCPU)
This section explains the method for ending (deactivating) an active step and starting (activating)
the specified step.
Changing Method Operation Remarks
Change by SFC
control instruction
• At the step (operation output) of the SFC
program, the instruction execution step is ended
and the specified step is forcibly started.
n
Instruction execution
step is deactivated.
Specified step is
activated.
SCHG Kn
• Convenient when the jump destination
changes depending on the condition.
• The change destination step can be specified
within the current block.
• Indirect designation (D0, K4M0, etc.) can also
be used to specify the change destination step.
• When multiple instructions have been
described within one step, the change
destination executed in the same can will be
valid.