A-3
Appendices
CJ2 CPU Unit Software User’s Manual
A-1 Instruction Functions
App
A-1-1 Sequence Input Instructions
A-1 Instruction Functions
The CJ2 CPU Units support the following instructions.
Refer to the CS/CJ/NSJ-series Instructions Reference Manual (Cat. No. W474) for details.
A-1-1 Sequence Input Instructions
Instruction Mnemonic Code Symbol/Operand Function Location
Execution
condition
LOAD LD
@LD
%LD
!LD
!@LD
!%LD
--- Indicates a logical start and creates an ON/OFF execu-
tion condition based on the ON/OFF status of the speci-
fied operand bit.
Logic start Not
required
LOAD NOT LD NOT
@LD NOT*2
%LD NOT
!LD NOT
!@LD NOT
!%LD NOT
--- Indicates a logical start and creates an ON/OFF execu-
tion condition based on the reverse of the ON/OFF sta-
tus of the specified operand bit.
Logic start Not
required
AND AND
@AND
%AND
!AND
!@AND
!%AND
--- Symbol Takes a logical AND of the status of the specified oper-
and bit and the current execution condition.
Continues
on rung
Required
AND NOT AND NOT
@AND NOT
%AND NOT
!AND NOT
!@AND NOT
!%AND NOT
--- Symbol Reverses the status of the specified operand bit and
takes a logical AND with the current execution condi-
tion.
Continues
on rung
Required
OR OR
@OR
%OR
!OR
!@OR
!%OR
--- Takes a logical OR of the ON/OFF status of the speci-
fied operand bit and the current execution condition.
Continues
on rung
Required
OR NOT OR NOT
@OR NOT
%OR NOT
!OR NOT
!@OR NOT
!%OR NOT
--- Reverses the status of the specified bit and takes a log-
ical OR with the current execution condition
Continues
on rung
Required
AND LOAD AND LD --- Continues
on rung
Required
Bus bar
Starting point
of block
Bus bar
Starting point
of block
Bus bar
Bus bar
Logic block Logic block
AND LD
Takes a logical AND between logic blocks.
Serial connection between
logic block A and logic block B.
LD
LD
to
to
Logic block A
Logic block B
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