Mitsubishi Electric MELSEC-Q Series Programming Manual page 100

Program Examples
• When X1 switches ON, the following program will select and start step 2 of block 1 which contains multiple initial steps.
(Block1)
• The following program deactivates held step 5 when step 10 is activated.
4 SFC PROGRAM CONFIGURATION
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4.4 Controlling SFC Programs by Instructions (SFC Control Instructions)
When step is designated by operation output of block 1
When step is designated by operation output of other than block 3
When step is designated by sequence program