LSIS XGT Series - Task-Related Warning;Error

Chapter 10 CPU Function
10-12
10.1.10 Task-Related Warning/Error
(1) Task cycle over warning
If the main task or the periodic task exceeds the cycle set by a user, the cycle over warning is generated. The
warning is stored in the error history.
Main task period
Main task period
Main task period
I/O
refre
sh
Program
Motion
control
Performance time of main task Performance time of main task
Main task period : 1ms
Main task period error : 2ms
Main task period
Period
waring
Period
waring
I/O
refre
sh
Program
Motion
control
History
History
If the task execution is completed in the previous cycle as shown in the figure below, the history is stored. If
the cycle over warning is continuously generated, the cycle over warning history is saved only for the first
occurrence of the warning. The saved history can be checked in the error history.
Main task period Main task period Main task period
I/O
refre
sh
Program
Performance time of main task
Main task period : 1ms
Main task period error : 2ms
Main task period
Period
warning
Motion
control
History
Period
warning
Period
warning