4 AUXILIARY AND APPLIED FUNCTIONS
4.11 Mixed Operation Cycle Function
163
4
Control details
The internal processes of the Motion CPU are defined by levels of priority. When executing tasks, if the execute conditions of
a high priority task are established, the Motion CPU processes the task of high priority. The low speed operation cycle
processes have a lower priority than operation cycle processes. Therefore they are processed in the standby time after the
completion of the operation cycle.
As an example, the process timing inside the Motion CPU, and the monitor devices for processing times when low speed
operation cycle magnification setting is set to "4 times" are shown below.
Refer to processing time monitor and check for process timing when low speed operation cycle is not set. (Page 370
Processing time monitor and check)
• Low speed operation cycle processes are processed in the standby time after the completion of the
operation cycle. Therefore, when operation cycle time is increased, there may not be enough time for
processing the low speed operation cycle processes.
• Motion SFC normal task processes, and scan time processes are processed in the standby time after the
completion of the low speed operation cycle. Therefore, when low speed operation cycle is set, the scan
time may increase.
Motion operation cycle
(SD522)
Motion setting operation
cycle (SD523)
Low speed Motion setting operation cycle (SD714)
Fixed-cycle system
processing
Processing priority
Motion SFC fixed-
cycle task
: Motion SFC processing
: System processing
Motion SFC normal
task/main cycle
processing
Time
Motion operation
processing
Motion operation
task processing time
(SD582, SD596)
Low speed Motion operation cycle
task processing time (SD599)
Low speed Motion operation cycle (SD715)
Motion SFC
fixed-cycle task
processing time
(SD584 to SD594)
*1: The "Low speed Motion operation cycle (SD715)" maximum value latches to the "Low speed Motion maximum operation cycle (SD716)".
Low speed Motion
operation
processing (Low
speed operation
cycle processing)
Scan time
(SD520, SD521, SD562 to SD565)
Motion SFC normal task
processing time
(SD566 to SD569)
Fixed-cycle system
processing time
(SD581, SD595)
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