Open Commissioning Assistant Plugin for Profinet RecordData

Description

Can be used to send and reveice Profinet acyclic data (RecordData) when connecting a virtual model to a real PLC (Hardware-in-the-loop).

Quick Getting Started

• Download the zip file from the latest release page
• Unpack and place it in the directory or a subdirectory of the OC.Assistant.exe
• Start the Assistant and connect or create a TwinCAT solution
• Add a new plugin instance using the + button
• Select RecordDataServer, configure parameters and press Apply (see also)
• The plugin starts when TwinCAT goes to Run Mode

Plugin Parameters

• AutoStart: Automatic start and stop with TwinCAT
• Port: The ADS port of the Profinet Device. Default port is 852.

How it works

The RecordData Plugin serves as a buffer to store Read/Write Requests (RDREC/WRREC) and Read/Write Responses. Behaviour models within the TwinCAT PLC can access the Read/Write Requests and send corresponding Read/Write Responses.

sequenceDiagram
    participant A as Profinet Device
    participant B as RecordData Plugin
    participant C as TwinCAT PLC

    
    A->>B: Read/Write Request 1
    activate B
    A->>B: Read/Write Request 2
    A->>B: Read/Write Request 3
    A->>B: Read/Write Request n
    loop each PLC cycle
    B->>C: Read/Write Request
    C->>B: Read/Write Response
    end
    B->>A: Read/Write Response 1
    B->>A: Read/Write Response 2
    B->>A: Read/Write Response 3
    B->>A: Read/Write Response n
    deactivate B

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