Omron CJ - PROGRAMMING MANUAL 08-2008 Programming Manual page 192

Block Programming Instructions
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
154
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.
FunctionS
Execution Execution Execution
condition condition condition
ON OFF OFF
Loop repeated
Operand Operand Operand
bit ON bit OFF bit OFF
Loop repeated
Section 3-30
Location
Execution condition
Block program
Required
Execution
condition
OFF
Block program
Required
Block program
Required
Operand
bit OFF
Block program
Required