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187
Sequence Control Instructions
Section 3-5
3-5-2
NO OPERATION: NOP(000)
Purpose
This instruction has no function. (No processing is performed for NOP(000).)
Ladder Symbol
There is no ladder symbol associated with NOP(000).
Variations
Applicable Program Areas
Description
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.
Flags
No flags are affected by NOP(000).
Precautions
NOP(000) can only be used with mnemonic displays, not with ladder pro-
grams.
3-5-3
INTERLOCK and INTERLOCK CLEAR: IL(002) and ILC(003)
Purpose
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.
Ladder Symbols
Variations
Applicable Program Areas
Description
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.
Variations
Executed Each Cycle for ON Condition
NOP(000)
Immediate Refreshing Specification
Not supported
Block program areas
Step program areas
Subroutines
Interrupt tasks
OK
OK
OK
OK
IL(002)
ILC(003)
Variations
Interlocks when OFF/Doesn’t interlock when ON IL(002)
Immediate Refreshing Specification
Not supported
Variations
Executed Each Cycle for ON Condition
ILC(003)
Immediate Refreshing Specification
Not supported
Block program areas
Step program areas
Subroutines
Interrupt tasks
Not allowed
Not allowed
OK
OK
Summary of Contents for CJ1G-CPUxx
Page 3: ...iv N o t i c e ...
Page 5: ...vi ...
Page 21: ...xxii Conformance to EC Directives 6 ...
Page 35: ......
Page 1131: ...1110 CJ series Instruction Execution Times and Number of Steps Section 4 2 ...