Omron NJ Series

5 Designing Tasks
5-24
NJ-series CPU Unit Software User’s Manual (W501)
The execution priorities of the tag data link service and system services are shown below. The execu-
tion priority of the tag data link service is between the execution priorities of the priority-16 periodic task
and the priority-17 periodic task. The execution priority of the system services is lower than the execu-
tion priority of any of the tasks.
Execution Priorities of the Tag Data Link Service and System
Services
Execution
priority
(0 to 63)
High
Low
1
0 or 1
0 to 32
0 or 1
Numbers of tasks
4
8
16
17
18
0 or 1
Primary periodic
task
Periodic task
System services
Tag data link
service
A total of up to 32 tasks
for both priority levels.
Periodic task
Periodic task
Event tasks
0 to 32
48
Event tasks