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FEND
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5.6 Termination Instructions
5.6.1 End main routine program (FEND)
5.6 Termination Instructions
5.6.1 End main routine program (FEND)
FEND
Function
(1) The FEND instruction is used in cases where the CJ instruction or other instructions are
used to cause a branch in the sequence program operations, and in cases where the main
routine program is to be split from a subroutine program or an interrupt program.
(2) Execution of the FEND instruction will cause the CPU module to terminate the program it
was executing.
(3) Even sequence programs following the FEND instruction can be displayed in ladder display
at a peripheral device.
(Peripheral devices continue to display ladders until encountering the END instruction.)
Setting
Data
Internal Devices
R, ZR
J\
U\G
Zn Constants Other
Bit Word Bit Word
–– ––
Basic
Process
High
performance
Redundant
Universal
FEND
FEND
CJ
FEND
FEND
END
0
P
(a) When the CJ instruction is used
CALL
FEND
Interrupt program
END
P
P
I
P
Operation
performed
when the CJ
instruction is
not executed
Main routine
program
Main routine
program
Main routine
program
Main routine
program
Subroutine
program
Jump caused
by the CJ instruction
Operation
performed
when the CJ
instruction is
executed
(b) W
hen there are subroutine and
interrupt programs