Abstract
Industrial Internet of Things (IIoT) systems challenges implementing programming logic controller (PLC) real-time technology. Firstly, the design of IIoT is fragmented and distributed. Secondly, existing PLC tools are hard to meet and dramatically complicated in emergent industries. Most of all, the deployment of IIoT is state-of-the-art engineering in complexity. A scheme to integrate the GRAFCET virtual machine (GVM) with a digital twin proposed enables IIoT systems in rapidly changing environments. They are compiling digital logic programs that support GVM at remote locations, deploying distributed manufacturing systems through IIoT communication networks, and building operational models of digital virtual and physical systems through digital twin modeling. Its behavior in dynamic operating environments is predictable. The results show that GRAFCET is not only IEC 60848 standard but also IEC 61131–3 for the PLCopen programming tool. Furthermore, a gateway of GVM performs rapid deployment of edge-cloud PLC programming. Significantly a cyber-physical system (CPS) through the digital twin improves the practicality of the digital transformation of PLC's value.
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