Omron SYSMAC CJ - REFERENCE MANUAL 01-2008 Reference Manual page 146

Instruction Functions
Instruction Symbol/Operand
Mnemonic
Code
LOOP ---
LOOP
809
LEND LEND (810)
LEND
810
LEND LEND (810)
LEND
810
B: Bit operand
LEND NOT LEND(810) NOT
LEND NOT
810 B: Bit operand
LOOP(809) designates the beginning of the loop program.
Execution condition
LEND(810) or LEND(810) NOT specifies the end of the loop. When
LEND(810) or LEND(810) NOT is reached, program execution will loop
back to the next previous LOOP(809) until the operand bit for
LEND(810) or LEND(810) NOT turns ON or OFF (respectively) or until
the execution condition for LEND(810) turns ON.
If the operand bit is OFF for LEND(810) (or ON for LEND(810) NOT),
B
execution of the loop is repeated starting with the next instruction after
LOOP(809). If the operand bit is ON for LEND(810) (or OFF for
LEND(810) NOT), the loop is ended and execution continues to the
next instruction after LEND(810) or LEND(810) NOT.
Note
The status of the operand bit would be
reversed for LEND(810) NOT.
LEND(810) or LEND(810) NOT specifies the end of the loop. When
LEND(810) or LEND(810) NOT is reached, program execution will loop
back to the next previous LOOP(809) until the operand bit for
LEND(810) or LEND(810) NOT turns ON or OFF (respectively) or until
the execution condition for LEND(810) turns ON.
Function
Execution Execution Execution
condition condition condition
ON OFF OFF
Loop repeated
Operand Operand Operand
bit ON bit OFF bit OFF
Loop repeated
Section 2-2
Location
Execution
condition
Block program 1216
Required
Execution
condition
OFF
Block program 1216
Required
Block program 1216
Required
Operand
bit OFF
Block program 1216
Required
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107