5 mar 2021: CODESYS based Primary Host node sneak preview
The CODESYS based Sparkplug Primary Host acts as a lightweight CODESYS alternative to Ignition's Primary Host Node (Primary SCADA). Any compatible CODESYS runtime can be turned into a Primary Host and can detect any connected Edge Of Network node, Device, Metrics and capabilities associated, just like Ignition's Primary SCADA Host can!
Since we will (obviously) not implement a full fledged SCADA in the PLC, you can bring your own SCADA aka BYOS. Just install a SCADA of your favorite choice on a machine somewhere in your architecture and connect it with the CODESYS Primaryhost. No SCADA? No problem! You can always run a local target or web visualisation in the CODESYS controller on top of your project or even do both!
The current Primary Host version supports detection of Groups, Edges with metrics and Devices with metrics. Received NBIRTH certificates are processed and the detected resources are claimed from resource pools. Furthermore NDATA payloads and NDEATH certificates are processed and the corresponding Edges and Metrics are updated. DBIRTH, DDATA, DDEATH implemented.
The PrimaryHost will be extended with exciting new features during the next period, so check this page regularly.
The following preview shows a fully configured Primary Host (topmost FB) and some GetMetricByName() calls (bottom 4 FB's).
The GetMetricByName() calls are ideally suited in any M2M usecase (planned and in preparation).
If you only have need for a Primary Host, you can omit all optional GetMetricByName() calls and your are ready!
