32.6.1.1 Specifying Labels - JMP/JMPP
Right-click and select [Insert Label], or on the [Logic] menu
click [Insert Label].
You can select a label from 192 labels ranging from LABEL-001 to
LABEL-192. Label names cannot be arbitrarily specified.
Only labels used in the program are displayed. The same label
names cannot be used on the INIT, MAIN, and SUB screens.
When you execute a JMP instruction, the program will jump to the
specified label. Unlike a JSR instruction, the program does not
automatically return to the rung of the jump source. It is not
possible to jump over the INIT or SUB block. Create a program that
jumps to a label within a block. Also, note that if the program
jumps up the program, it may result in an infinite loop.
A JMPP instruction executes a jump instruction only when an
upward transition is detected. The processing after a jump is the
same as the JMP instruction.
Program Example
JMP
When the NO variable (Jump) is turned ON, the JMP instruction
will be executed and the program will jump to the fourth rung set
with the label name: "LABEL-001".
After the jump, the program continues executing after the fourth
rung. As long as the Normally Open (NO) instruction remains ON, the
program in the third rung will not execute.
JMPP
Only the upward transition of the normally open instruction is
detected, and the JMPP instruction executes. Then, the program
jumps to the fourth rung with the label name: "LABEL-001". After
the jump, the program continues executing after the fourth rung.
scan after and during subsequent scans, the JMPP instruction does
not execute, even if the normally open instruction remains ON.
After the first scan, the program in the third rung executes.
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