Connecting an USB based QR code scanner to an Industrial Edge Device.
This application examples shows how to connect a QR code scanner via USB to the Industrial Edge Device. The scanned QR code will be sent to a PLC and displayed in an HMI Panel.
The application reads the QR code provided by the scanner and publishes it on the Databus to the topic corresponding to the OPC UA Connector, which sends the data to the PLC. This topic needs to be created in the Databus in advance. The scanner type, PLC tag, Databus topic as well as Databus credentials can be configured via an external configuration file.
- Industrial Edge App Publisher V1.13.5
- Docker Engine 24.0.6
- Docker Compose V2.21.0
- Common Configurator V1.9.0
- Databus V2.2.0-3
- Databus Configurator V2.3.1-4
- Industrial Edge Device V1.16.1-1-a
- IE App Configuration Service V1.3.2
- OPC UA Connector V2.0.1.0
- QR Code Scanner: SIMATIC MV320
- TIA Portal V18 (V16 minimum)
- PLC: CPU 1518 FW 2.8.3
The used TIA Portal project can be found in the miscellaneous repository in the tank application folder and is also used for several further application examples:
Further information about how to configure the OPC UA Connector to write data to the PLC can be found in the docs section.
You can find further information about the following steps in the docs
- Configure QR Code Scanner
- Build application
- Upload scanner app to the Industrial Edge Management
- Configuring Application
- Create & Deploy of QR code scanner demo
Plug your SIMATIC MV320 QR code scanner (or any other USB Scanner) to one of the USB ports of your Industrial Edge Device.
Go to the TIA Portal Project, start the HMI Runtime and scan any available QR code (e.g., the following QR code). A pop up will appear with the content of the scanned code.
You can also open the GBD data block in the TIA Portal and check the content of the APP_QRCode variable in the appSignals structure.
The access to the USB based QR code scanner inside the application as well as further details about the source code can be found in the implementation section.
- Accessing QR Code Scanner inside the application
- Publishing QR Code to the Databus
- You can find further documentation and help in the following links
Thank you for your interest in contributing. Anybody is free to report bugs, unclear documentation, and other problems regarding this repository in the Issues section. Additionally everybody is free to propose any changes to this repository using Pull Requests.
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