Lenze ApplicationTemplate PackML (PLC Designer R3-x) Instrukcja Użytkownika Pobierz pdf (Strona 85)

Lenze · ApplicationTemplate PackML · 1.0 EN - 05/2014 85

Architecture: The ApplicationTemplate PackML in detail

Consistent data transfer

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[9-1] Example: The Lock() method inhibits real time-critical data of the ACD structure.

2. After the last exclusive access to the data area, a task must call the Unlock() method to enable

the data area.

[9-2] Example: The UnLock() method enables a reserved data area der ACD structure.

Program in machine module 1 ( TaskMidPriority = 4 ms):

Program in machine module 2 ( TaskHighPriority = 2 ms):

IF Lock() THEN

For i:=0 TO 2000 by 1 DO

rACDOwn.aCAMData[i] := aCAMData[i];

END_FOR

IF Lock() THEN

For i:=0 TO 2000 by 1 DO

rACDOwn.aCAMData[i] := aCAMData[i];

END_FOR

Unlock()

IF Lock() THEN

For i:=0 TO 2000 by 1 DO

rACDOwn.aCAMData[i] := aCAMData[i];

END_FOR

Unlock()

IF NOT LockState() THEN

For i:=0 TO 2000 by 1 DO

aCAMData[i] := rACDModule1.aCAMData[i];

END_FOR

END_IF

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Lenze ApplicationTemplate PackML (PLC Designer R3-x) Instrukcja Użytkownika Strona 85