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Instant PLC Programming with RSLogix 5000 by Austin Scott

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Building a Sequential Function Chart (Intermediate)

In the following recipe, we will demonstrate the usage of a Sequential Function Chart (SFC) by building a backwash process using a step-by-step guide.

Getting ready

To complete this recipe, you should have completed the previous exercises.

How to do it...

  1. First, we will need to declare our new routine. Right-click on MainProgram of Controller Organizer and select New Routine.
  2. In the New Routine form that appears, enter or select the following:
    • Name: BACKWASH
    • Description: Backwash Sequence
    • Type: Sequential Function Chart
  3. Then click on OK.
  4. In order for our newly created routine to be executed with each scan of the PLC, we will need to add a reference to it in MainRoutine that is executed with each Scan of ...

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