Omron CS1G/H-CPUxxH Instructions Manual page 208

Sequence Control Instructions
3-5-2 NO OPERATION: NOP(000)
Purpose
Ladder Symbol
Variations
Applicable Program Areas
Description
Flags
Precautions
3-5-3 INTERLOCK and INTERLOCK CLEAR: IL(002) and ILC(003)
Purpose
Ladder Symbols
Variations
Applicable Program Areas
Description
This instruction has no function. (No processing is performed for NOP(000).)
There is no ladder symbol associated with NOP(000).
Variations Executed Each Cycle for ON Condition
Immediate Refreshing Specification
Block program areas
OK OK
No processing is performed for NOP(000), but this instruction can be used to
set aside lines in the program where instructions will be inserted later. When
the instructions are inserted later, there will be no change in program
addresses.
No flags are affected by NOP(000).
NOP(000) can only be used with mnemonic displays, not with ladder pro-
grams.
Interlocks all outputs between IL(002) and ILC(003) when the execution con-
dition for IL(002) is OFF. IL(002) and ILC(003) are normally used in pairs.
Variations Interlocks when OFF/Doesn't interlock when ON IL(002)
Immediate Refreshing Specification
Variations Executed Each Cycle for ON Condition
Immediate Refreshing Specification
Block program areas
Not allowed Not allowed
When the execution condition for IL(002) is OFF, the outputs for all instruc-
tions between IL(002) and ILC(003) are interlocked. When the execution con-
dition for IL(002) is ON, the instructions between IL(002) and ILC(003) are
executed normally.
Step program areas Subroutines
OK
IL(002)
ILC(003)
Step program areas Subroutines
OK
Section 3-5
NOP(000)
Not supported
Interrupt tasks
OK
Not supported
ILC(003)
Not supported
Interrupt tasks
OK
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