Abstract
Collecting data from process equipment is currently an interesting task. The use of complex SCADA systems is not always possible and is usually an expensive solution. For some tasks, in-depth analysis of the received technological information is not needed, but visualization of the necessary data is sufficient. In control systems, it is usually not possible to create custom HMI screens. The use of new approaches based on web technologies and cloud solutions allows collecting and visualizing data on web pages and screens of mobile devices. The article shows a solution for collecting data from a CNC system using the OPC UA protocol and subsequent data visualization based on the FRED cloud platform in the required format with the ability to configure HMI screens.
Highlights
Backup data is of paramount importance nowadays
The CNC digital shadow helps solve this problem for CNC machines by offering remote access to the backed up information of these machines
CNC machines are connected to a local network using some kind of communication protocol (OPC UA, MT Connect, Modbus, etc.)
Summary
Backup data is of paramount importance nowadays. The CNC and PLC systems are stored very dissimilar. The CNC digital shadow helps solve this problem for CNC machines by offering remote access to the backed up information of these machines This shadow includes creating and maintaining a complete set of backups of CNC machine data stored in a secure, remote location that can be accessed 24/7. In this example, CNC machines are connected to a local network using some kind of communication protocol (OPC UA, MT Connect, Modbus, etc.). The digital cloud shadow is used to send data from the OPC UA server of the CNC system to the FRED cloud using a remote Node-RED user terminal based on the OPC UA web client and using the STS-MQTT (Message Queuing Telemetry Transport) platform. STS-MQTT subscription is a string that is used to filter messages from each connected STS-MQTT client [12]
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