Omron CJ - INSTRUCTIONS REFERENCE MANUAL 07-2009 Reference Manual page 40

Flags
Operands
CS/CJ/NSJ Series Instructions Reference Manual (W474)
The following instructions are used in pairs to set and cancel certain instruc-
tion conditions. These paired instructions must be in the same task.
Instruction
condition
Interlocked An interlock turns OFF part of the
program.
Special conditions, such as turning
OFF output bits, resetting timers,
and holding counters are in effect.
BREAK(514) Ends a FOR(512) - NEXT(513) loop
execution during execution.
(Prevents execution of all instruc-
tions until to the NEXT(513) instruc-
tion.)
Executes a JMP0(515) to
JME0(516) jump.
Block program Executes a program block from
execution BPRG(096) to BEND(801).
In this context, a flag is a bit that serves as an interface between instructions.
Input flags
Flag Description
Carry (CY) The Carry Flag is used as
Flag an unspecified operand in
data shift instructions and
addition/subtraction
instructions.
Flags for These include teaching
Special flags for FPD(269) instruc-
Instructions tions and network commu-
nications enabled flags.
Operands specify preset instruction parameters (boxes in ladder diagrams)
that are used to specify I/O memory area contents or constants. An instruction
can be executed entering an address or constant as the operands. Operands
are classified as source, destination, or number operands.
1. Basic Understanding of Instructions
Description
instruction
IL(002)
BREAK(514)
JMP0(515)
BPRG(096)
Flag
Condition Condition Flags include the
Flags Always ON/OFF Flags, as
well as flags that are
updated by results of
instruction execution.
In user programs, these
flags can be specified by
labels, such as P_On,
P_Off, P_ER, P_CY, P_EQ
rather than by addresses.
Flags for These include memory card
Special instruction flags and
Instructions MSG(046) execution com-
pleted flags.
Setting Canceling
instruction
ILC(003)
NEXT(513)
JME0(516)
BEND(801)
Output flags
Description
1
3