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206 T1-16S User’s Manual
7. Instructions

FUN 133 NEXT NEXT (FOR-NEXT loop)

Expression
Input −[ NEXT ]− Output
Function
This instruction configures a FOR-NEXT loop.
If the input is OFF, The repetition is forcibly broken. and the program execution is moved to the
next instruction.
Execution condition
Input Operation Output
OFF Forci bly breaks the repetition OFF
ON Repetition ON
Operand
No operand is required.
Example
When R005 is ON, the program segment between FOR and NEXT is executed 30 times in a
scan. In the above example, the rung 3 is executed 30 times. As a result, the data of D0000 to
D0029 are transferred to D0500 to D0529. (Block transfer)
Note
• The FOR instruction must be used with a corresponding NEXT instruction one by one.
• Nesting of the FOR-NEXT loop is not allowed. That is, the FOR instruction cannot be used in a
FOR-NEXT loop.
• The FOR and NEXT instructions cannot be programmed on the same rung.
• The following connection is not allowed.
| | [ FOR n ] | | [ NEXT ]
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