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Sequence Control Instructions Section 3-5
3-5-9 FOR-NEXT LOOPS: FOR(512)/NEXT(513)
Purpose The instructions between FOR(512) and NEXT(513) are repeated a specified
number of times. FOR(512) and NEXT(513) are used in pairs.
Ladder Symbols
Variations
Applicable Program Areas
Operands N: Number of Loops
The number of loops must be 0000 to FFFF (0 to 65,535 decimal).
CIO 000000
ON
CIO 000000
OFF
Instructions
processed
as
NOP(000).
(Outputs re-
main un-
changed.)
Normal
execution
FOR(512)
N
NEXT(513)
N: Number of loop
Variations Executed Each Cycle for ON Condition FOR(512)
Executed Each Cycle for ON Condition NEXT(513)
Immediate Refreshing Specification Not supported
Block program areas Step program areas Subroutines Interrupt tasks
Not allowed OK OK OK
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