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Sequence Control Instructions Section 3-5
Description END(001) completes the execution of a program for that cycle. No instructions
written after END(001) will be executed.
Execution proceeds to the program with the next task number. When the pro-
gram being executed has the highest task number in the program, END(001)
marks the end of the overall main program.
Precautions Always place END(001) at the end of each program. A programming error will
occur if there is not an END(001) instruction in the program.
3-5-2 NO OPERATION: NOP(000)
Purpose This instruction has no function. (No processing is performed for NOP(000).)
Ladder Symbol There is no ladder symbol associated with NOP(000).
Variations
Applicable Program Areas
Description No processing is performed for NOP(000), but this instruction can be used to
set aside lines in the program where instructions will be inserted later. When
the instructions are inserted later, there will be no change in program
addresses.
Flags No flags are affected by NOP(000).
I/O refreshing
Task 1
Task 2
Task n
Program Z
Program A
Program B
To the next task number
To the next task number
End of the main program
Variations Executed Each Cycle for ON Condition NOP(000)
Immediate Refreshing Specification Not supported
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK OK
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