Rockwell-automation FactoryTalk Scheduler Users Guide Uživatelský manuál stáhnout pdf (Strana 37)

4 • SCHEDULING FEATURES

31

• • • • •

The second example extends the previous one by allowing two sets of parallel operations.

In this example, the first two operations, labeled 10, can be performed independently, but

both need to be completed before the next two operations, labeled 20, which can be

performed independently.

20

(30)

10

(10)

10

(20)

Immediate Successor Table

OSN Scheme Operation

Number

ISO Scheme Operation

Number

Immediate Successor

Operation Number

10 10 30

10 20 30

20 30

10

10

(20)

30

(50)

20

(30)

20

(40)

Immediate Successor Table

OSN Scheme Operation

Number

ISO Scheme Operation

Number

Immediate Successor

Operation Number

10 10 30 & 40

10 20 30 & 40

20 30 50

20 40 50

30 50

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 145 146

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