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Sequence Control Instructions Section 3-4
3-4 Sequence Control Instructions
3-4-1 END: END(001)
Purpose Indicates the end of a program.
Ladder Symbol
Variations
Applicable Program Areas
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.
END(001)
Variations Executed Each Cycle for ON Condition END(001)
Immediate Refreshing Specification Not supported
Block program areas Step program areas Subroutines Interrupt tasks
Not allowed Not allowed Not allowed OK
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
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