Inhalte

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  • 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
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    • Glossary P
    • Glossary Q
    • Glossary R
    • Glossary S
    • Glossary T
    • Glossary U
    • Glossary V
    • Glossary W
    • Glossary X
    • Glossary Y
    • Glossary Z

Formatting SFC

Table of Contents

Common

• We use SFC for a higher level abstraction layer to manage sequences, we don't use it for things like event driven infinite state machines. The problem is, SFCs growing faster as you think and they become unreadable monsters.

Maximum number of steps per row

• The maximum number of steps per row is three. If more than three steps per row are necessary, you should rethink your design. It should be possible to extract partial sequences into macros or new classes, or maybe SFC is the wrong language for this problem.

Maximum number of steps per column

• The maximum number of steps per column is six. If more than six steps per column are necessary, you should rethink your design. It should be possible to extract partial sequences into macros or new classes, or maybe SFC is the wrong language for this problem.

Jumps

• A maximum of one jump at the end to the first step of a page (main sequence or macro) is allowed.