Omron CJ - PROGRAMMING MANUAL 12-2009 - Page 214

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Using Tasks Section 4-2
Tasks and the Execution Cycle
A cyclic task (including an extra cyclic task) that is in READY status will main-
tain that status in subsequent cycles.
A cyclic task that is in Standby status will maintain that status in subsequent
cycles. The task will have to be activated using the TKON(820) instruction in
order to switch from Standby to READY status.
Cyclic task 1
Cyclic task 2
Cyclic task 3
Cyclic task 1
Cyclic task 2
Cyclic task 3
Cyclic task 0
Cyclic task 1
Cyclic task 2
Cyclic task 3
Cyclic task 0
Cyclic task 1
Cyclic task 2
Cyclic task 3
Cyclic task 0
1) Task 0 will be
in READY
status at the
start of opera-
tion.
Other tasks will re-
main in Disabled
status.
2) Task 1 will go to
READY status if A is
ON, and tasks 2 and
3 will remain on
Disabled status.
READY status
Standby status/Disabled status
3) Task 0 will go to
Standby status if D
is ON.
Other tasks will remain in
their current status.
Example: Cyclic Task
Cyclic task 0
(READY status
at the start of
operation)
Cyclic task 1
Cyclic task 2
Cyclic task 1
Cyclic task 2
TKON(820)
READY status
READY status
READY sta-
tus at the
start of op-
eration
READY
status