GE 90-30/20/Micro manual End, Example

4

END

The END function provides a temporary end of logic. The program executes from the first rung to the last rung or the END function, whichever is encountered first.

The END function unconditionally terminates program execution. There can be nothing after the end function in the rung. No logic beyond the END function is executed, and control is transferred to the beginning of the program for the next sweep.

The END function is useful for debugging purposes because it prevents any logic which follows from being executed.

Logicmaster programming software provides an [ END OF PROGRAM LOGIC ] marker to indicate the end of program execution. This marker is used if no END function is programmed in the logic.

Example:

In the following example, an END is programmed to terminate the end of the current sweep.

STOP

-[ END ]

Note

Placing an END function in SFC logic or in logic called by SFC produces an “END Function Executed from SFC Action” fault in Release 7 or later CPUs. (In pre-Release 7 CPUs, it did not work correctly, but no Fault was generated.) For information about this fault, refer to the “System Configuration Mismatch” part of Chapter 3, Section 2.

GFK-0467K Chapter 4 Series 90-30/20/Micro Instructions Set 4-123