LSIS XGT Series - Page 588

Chapter 10 CPU Function
10-13
(2) Task cycle error
If the task is executed by exceeding the cycle error time set in the basic parameter, a cycle over error occurs.
Refer to Section 0 Task Program Occupancy Rate Excess Warning/Error for corrective actions taken in the
case of an error.
Main task period Main task period Main task period
I/O
refre
sh
Program
Motion
control
I/O
refre
sh
Program
Performance time
of main task
Main task period : 1ms
Main task period error : 2ms
Main task period
Period
warning
Period
error
Histroy
History
I/O
refre
sh
Motion
control
RUN RUN RUN ERROR
Period
warning
(3) Program occupancy rate excess warning/error
In the basic parameter, the program occupancy rate excess warning detection setting value can be set to
50~95%. If it exceeds the value set by a user, the program occupancy rate excess warning is generated, and if
it is 100%, the program occupancy rate excess error occurs.
0
50~
95%
100%
As shown in the figure below, if the program occupancy rate excess warning detection value of the basic
parameter is set to 70%, a warning is generated when the program occupancy rate ranges from 70 to 99%,
and an error occurs when it is 100%.
0 100%
70%
War i ng
Er ror
Histroy