Description Of Tasks - Omron SYSMAC CS Series Programming Manual

Description of Tasks

1-7

Description of Tasks

1,2,3...
14
Tasks are broadly grouped into the following types:
1. Cyclic tasks (32 max.)
Tasks that will be executed once per cycle if executable.
2. Interrupt tasks
Tasks that are executed when the interrupt occurs whether or not a cyclic
task is being executed.
Interrupt tasks are grouped into the following types:
a) Power OFF interrupt task:
b) Scheduled interrupt task:
c) I/O interrupt task:
d) External interrupt task:
Note CJ-series CPU Units do not currently support I/O interrupt tasks and external
interrupt tasks. The maximum number of tasks for a CJ-series CPU Unit is
thus 35, i.e., 32 cyclic tasks and 3 interrupt tasks. The total number of pro-
grams that can be created and managed is also 32.
A total of 288 tasks with 288 programs can be created and controlled through
the CX-Programmer. These include up to 32 cyclic tasks and 256 interrupt
tasks.
Executed when power is interrupted.
(1 max.)
Executed at specified intervals. (2 max.).
Executed when an Interrupt Input Unit
contact turns ON (32 max.).
Executed (256 max.) when requested by
an Special I/O Unit, CPU Bus Unit, or In-
ner Board (CS Series only).
Section 1-7