Operation For Motion Sfc And Parameter; Task Definitions; Number Of Consecutive Transitions And Task Operation; Number Of Consecutive Transitions - Mitsubishi Electric Melsec Q Series Programming Manual

9 OPERATION FOR MOTION SFC AND PARAMETER

9. OPERATION FOR MOTION SFC AND PARAMETER

9.1 Task Definitions

When to execute the Motion SFC program processing can be set only once in the
program parameter per program.
Roughly classified, there are the following three different tasks.
Task type
Normal task
Event task
NMI task
Set "0.2ms" as operation cycle in the system basic setting of MT Dveloper2 to

9.2 Number of Consecutive Transitions and Task Operation

9.2.1 Number of consecutive transitions

With "execution of active step
processing performed when condition enables (transition of active step)" defined as a
single basic operation of the Motion SFC program execution control in the execution
cycle of the corresponding task, this operation is performed for the number of active
steps to terminate processing once. And the same operation is processed continuously
in the next cycle.
In this case, the transition destination step is executed in the next cycle when the
transition condition enables.
Consecutive transition control indicates that transition destination steps are executed
one after another in the same one execution cycle when their transition conditions
have enabled (single basic operation is performed consecutively).
In this case, set the number of consecutive transitions.
Control exercised is common to the Motion SFC programs executed by normal tasks.
Set the number of consecutive transitions to the Motion SFC programs executed
Executes in Motion CPU main cycle (free time).
1. Executes in fixed cycle (0.22ms
7.11ms, 14.2ms).
2. Executes when the input set to the event task factor among external
interrupts (16 points of QI60) turns on.
3. Executes by an interrupt from the PLC CPU.
Executes when the input set to the NMI task factor among external interrupts
(16 points of QI60) turns on.
POINT
execute the event task in fixed cycle 0.22ms.
POINT
by event and NMI tasks for every program.
Contents
, 0.44ms, 0.88ms, 1.77ms, 3.55ms,
QDS
QDS
judgment of next transition condition
9 - 1
transition
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