Inhalte

• Home
  • License Agreement
  • Introduction
  • IDE Settings
  • Project
  • Repository
  • Comments
  • reStructuredText
  • Naming
  • Formatting
    • Formatting Structured Text and Extended Structured Text ExST
    • Formatting SFC
  • Practices
    • Practices Introduction
    • Common Practices
      • Common Practices Interfaces
      • Common Practices Data Structures vs Objects
      • Common Practices Inheritance
      • Common Practices Dependencies
        • Common Practices Dependencies Examples
          • Common Practices Dependencies Examples Dependency Injection
            • Dependency Injection Introduction
            • Dependency Injection Common Interfaces
            • Dependency Injection Devices
            • Dependency Injection Inter-Stopper-Communication
            • Dependency Injection Stopper Workflows
            • Dependency Injection Stopper
            • Dependency Injection Declaration in Main
            • Dependency Injection Summary
          • Dependencies Examples Abstract Factories
            • Abstract Factories Introduction
            • Abstract Factories Object
            • Abstract Factories Alarm Messages
            • Abstract Factories Alarm Message Service
              • Alarm Message Service Introduction
              • Alarm Message Service Common Interfaces
              • Alarm Message Service Collection Interfaces
              • Alarm Message Service Factories
              • Alarm Message Service Collection Implementations
              • Alarm Message Service Alarm Message Distributor
            • Abstract Factories OPC-UA HMI Connection
            • Abstract Factories Test it
            • Abstract Factories Summary
      • Common Practices ControlStatus Words
      • Common Practices Scope Pointer
      • Common Practices Divide The Libraries
      • Common Practices Return Values
    • STExST Practices
      • STExST Practices GOTO JMP
      • STExST Practices CASE OF
      • STExST Practices Assignment as Expression
      • STExST Practices Namespace Alias
      • STExST Practices VAR_OUTPUT
    • SFC Practices
      • SFC Practices Jumps
      • SFC Practices Cyclic Rotations
  • Glossary
    • Glossary A
    • Glossary B
    • Glossary C
      • Glossary Class
    • Glossary D
      • Glossary Data Transfer Object
      • Glossary Dto
    • Glossary E
    • Glossary F
      • Glossary Foo
    • Glossary G
    • Glossary H
    • Glossary I
    • Glossary J
    • Glossary K
    • Glossary L
    • Glossary M
    • Glossary N
    • Glossary O
    • Glossary P
    • Glossary Q
    • Glossary R
    • Glossary S
    • Glossary T
    • Glossary U
    • Glossary V
    • Glossary W
    • Glossary X
    • Glossary Y
    • Glossary Z

SFC Practices: Cyclic Rotations

Table of Contents

Keep calm and wait

SFCs are finite state machines to be more precise they are transducers. However, the key point is that state machines change their state by an input or an event. The absence of such an event must not lead to a change of the inner state, it is possible, but it is bad style, so we forbid it. For the SFCs this means, it should remain in the step until the transition for the next step is fulfilled, there should be no branches alla if there is nothing to do here let's look over there maybe there is something to do. When a machine stops and you don't know why, it's really frustrating to watch a hyperactive green rectangle jump.