Forced End Of For To Next Instruction Loop - Mitsubishi Electric MELSEC-Q/L Programming Manual

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Forced end of FOR to NEXT instruction loop

(D): Number of the device where the remaining number of loops will be stored (BIN 16 bits)

Number of the pointer (device name (pointer)) where the program is branched at the forced end of a loop.

Internal device

Processing details

• Forces an end to a FOR to NEXT instruction loop and shifts the operation to the pointer specified by Pn. Only a pointer

within the same program file can be assigned to Pn. If a pointer of the other program file is used, an operation error will be

Forced end condition

When forced end condition is satisfied

• The remaining number of the FOR to NEXT instruction loop times is stored at (D). Note that the remaining number includes

the operation when the BREAK instruction is executed.

• The BREAK instruction can be used only during the execution of a FOR to NEXT instruction loop.

• The BREAK instruction can be used only when there is only one level of nesting. When an end is forced to the multiple

nesting levels, execute the same number of BREAK instructions for the nesting levels.

Operation error

• In any of the following cases, an operation error occurs, the error flag (SM0) turns ON, and an error code is stored into SD0.

Error details

The BREAK instruction is used in a case other than with the FOR to NEXT

instruction loop.

The jump destination for the pointer specified by Pn does not exist.

The pointer of another program file is specified for Pn.

7 APPLICATION INSTRUCTIONS

7.6 Structure Creation Instructions

Redundant Universal

If the BREAK instruction is not executed,

program returns to the FOR instruction

as many times as the number specified

with the FOR instruction.