Omron CP - PROGRAMMING MANUAL 05-2007 Programming Manual page 170

Sequence Control Instructions
Item
Instruction execution
Output status in instructions
Bits in OUT, OUT NOT, OUTB(534)
Status of timer instructions
(except (TTIM(087), TTIMX(555),
MTIM(543), and MTIMX(554))
Flags
Precautions
It is often more efficient to switch a program section with IL(002) and
ILC(003). When several processes are controlled with the same execution
condition, it takes fewer program steps to put these processes between
IL(002) and ILC(003).
The following table shows the differences between IL(002)/ILC(003) and
JMP(004)/JME(005).
Treatment in
IL(002)/ILC(003)
Instructions other than OUT, OUT NOT,
OUTB(534), and timer instructions are
not executed.
Except for outputs in OUT, OUT NOT,
OUTB(534), and timer instructions, all
outputs retain their previous status.
OFF
Reset
Name Label
Error Flag ER
Equals Flag =
Negative Flag N
The cycle time is not shortened when a section of the program is interlocked
because the interlocked instructions are executed internally.
The operation of DIFU(013), DIFD(014), and differentiated instructions is not
dependent solely on the status of the execution condition when they are pro-
grammed between IL(002) and ILC(003). Changes in the execution condition
for DIFU(013), DIFD(014), or a differentiated instruction are not recorded if the
DIFU(013) or DIFD(014) is in an interlocked section and the execution condi-
tion for the IL(002) is OFF.
No instructions are executed.
All outputs retain their previous status.
All outputs retain their previous status.
Operating timers (TIM, TIMX(550),
TIMH(015), TIMHX(551), TMHH(540),
TMHHX(552) only) continue timing
because the PVs are updated even
when the timer instruction is not being
executed.
Operation
OFF
OFF or unchanged
OFF or unchanged
Section 3-4
Treatment in
JMP(004)/JME(005)
137