Lenze PLC Designer ApplicationTemplate (PLC Designer R3- Instrukcja Użytkownika Pobierz pdf (Strona 91)

Lenze · ApplicationTemplate · 1.3 EN - 04/2013 91

Architecture: The ApplicationTemplate in detail

Where can the response of a machine module be programmed?

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9.8 Where can the response of a machine module be programmed?

[9-22] Example: Status-related actions of the MAP_Module1_App1 FB

9.8.1 State transition (state entry/state exit)

Every change of a status-related action (within an action or from an action) sets a specific flag for a

task cycle to "TRUE".

• xStateEntry: The status-related action sets this flag to "TRUE" during the entry for one task cycle.

• xStateExit: The status-related action sets this flag to "TRUE" during the exit for one task cycle.

[9-23] Program example: S04_SERVICE action

The response of a machine module (in a

specific state) can be programmed in the

prepared Actions of the ApplicationTemplate.

•Actions are marked with the icon.

During every cycle, always the action

representing the current status of the machine

module's state machine is passed through.

• Program parts which are only required if

the machine module is in a specific state

have to be stored directly within these

predefined actions.

•The MM_EmptyModule module template

contains a predefined structure with

(empty) actions.

IF xStateEntry THEN

// Put state entry code here

// ...

END_IF

// Put cyclic code here

// ...

 Note!

The following procedure is to be taken into consideration for task timing-related

program commands: At a state transition, actions are assigned to the individual task

cycles in the same way as for the sequential function chart AS:

• At the "Ready""Automatic" state transition, the task cycle...

• ...first passes through the S02_READY action with a set xStateExit flag.

• ...then passes through the S05_AUTOMATIC action with a set xStateEntry flag.

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Lenze PLC Designer ApplicationTemplate (PLC Designer R3- Instrukcja Użytkownika Strona 91