
B-63983EN/02 1.OVERVIEW OF PMC
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1.5.1 Execution Order and Execution Time Percentage
For the multi-PMC function, the order of PMC execution and
execution time percentages of the PMCs can be set with CNC
parameters.
Execution order
If parameters related to the execution order are not set (0 is set), the
following order sequence is assumed by default:
1st PMC 2nd PMC 3rd PMC
Other processing such as
tracing
Fig. 1.5.1 (a) Default execution order of multiple PMCs
Execution time percentage
If parameters related to execution time percentages are not set (0 is set),
the following execution time percentages are assumed by default:
Level 1
Level 2
Level 3
1st PMC
(75%)
2nd
PMC
(15%)
3rd
PMC
(10%)
Ladder execution cycle (4 or 8 msec)
Fig. 1.5.1 (b) Execution time percentages of multiple PMCs