Delta AH500 Programming Manual page 199

AH5 00 Prog ram m ing M an ua l
Instruction code
NOP
Symbol: None
Explanation:
The instruction NOP does not perform any operation in the program. Therefore, the original logical
operation result is retained after NOP is executed. If users want to delete a certain instruction
without changing the length of the program, they can use NOP instead.
The instruction NOP only supports the instruction list in ISPSoft. It does not support ladder
diagrams.
Example:
The instruction list in ISPSoft:
Instruction: Operation:
LD X0.0 Contact A of X0 is loaded.
NOP No action
OUT Y1.0 The coil Y1.0 is driven.
5 - 2 0
Operand
-
Function
No operation