Omron WS02-CXPC1-V8 - V8.1 REV 02-2009 Operation Manual page 140

SFC Task Control Instruction Specifications
B-1 SFC ON (SFCON)/SFC OFF (SFCOFF)
SFCON Instruction
Outline
Restarts execution of an SFC task that was ended
or paused using one of the other SFC Task
Control Instructions.
Symbol
SFCON
N
N: SFC task number
Operands
Cyclic Task
For CJ2
N: &0 to &128 (Correspond to cyclic tasks 0 to
128.)
For other models
N: &0 to &31 (Correspond to cyclic tasks 0 to 31.)
Description
The SFC task specified by N is started.
If an ended task is started, it is executed from the
initial step. If a paused task is started, it is
executed from the status that existed before it was
paused.
Variations
Executed Each Cycle for ON
Condition
Variations
Executed Once for Upward
Differentiation
Immediate Refreshing Specification
124
SFCOFF Instruction
Outline
Ends execution of an SFC task. The status of all
outputs is held. When execution of the SFC task is
restarted, it is executed from the initial step.
Symbol
SFCOFF
N
Operands
Cyclic Task
For CJ2
N: &0 to &128 (Correspond to cyclic tasks 0 to
128.)
For other models
N: &0 to &31 (Correspond to cyclic tasks 0 to 31.)
Description
The SFC task specified by N is ended.
The status of all outputs is held.
When execution is restarted with the SFCON
instruction, the task is executed from the initial
step.
Variations
SFCON
Variations
None
None
Immediate Refreshing Specification
Applicable Program Areas
SFCON/SFCOFF
Function
Area block
definitions
Usage OK
Operand Data
SFCON/SFCOFF
Task name
Cyclic tasks
Extra task 0 (interrupt task 0)
Extra task 1 (interrupt task 1)
....
Extra task 255 (interrupt task 255)
Condition Flags
Name
Error Flag
Appendix B
N: SFC task number
Executed Each Cycle for ON
Condition
Executed Once for Upward
Differentiation
Block Step Sub-
program program routines
areas areas
OK OK OK
0 to 128 (for CJ2)
0 to 31 (for other models)
Label Status
P_ER OFF
SFCOFF
None
None
Interrupt
task
programs
OK
Operand
&0 to &128
&0 to &31
&8000
&8001
...
&8255