Since 2018, the utilization of OPC UA for production communication has continuously increased in the BU Laundry.įailure would have resulted in immense licensing costs for the previous software, as well as rebuilding and redundancies. The goal of the OPC UA integration was to modernize and simplify data communication in the press shop and in body-in-white production. In the final assembly, the washing unit, washing machine housing, and other individual parts are combined to form the finished washing machine. This requires welding processes, clinching processes or even bolting processes. In subsequent production steps, these individual parts are assembled into a washing machine unit and washing machine housing in the body shop. Sheet steel components are produced at the Gütersloh press shop. In 2018, Miele decided to rely on OPC UA in the press shop and body shop for the production of washing machines. In November 2017, the company officially joined the OPC Foundation. In May 2017, the first working group began operations with the objective of reviewing the OPC UA standard. Manufacturing Washing Machine Aggregates with OPC UA Under these security standards, the BU Laundry's assets and production data are transferred to Microsoft's Azure Cloud." All data is encrypted and transmitted securely. Communication with OPC UA works according to the principle "secure by default". "The high security level of OPC UA is a main factor for Miele. Furthermore, a major advantage is that 100 percent of Miele's suppliers now supply OPC UA-compliant products with OPC UA interfaces in machines and controllers." Keyword 'Data Security'? The "hardware in the loop" principle already checks processes during the construction and planning phase. Further advantages are in the use of virtual hardware. The effort of communication technology in complex 4.0 manufacturing processes is reduced as well. As a result: the time required for adaptations or the integration of devices and systems is significantly reduced. This is a great advantage for an existing production. "The uniform interfaces can be used for different systems. Can existing systems be upgraded to OPC UA? OPC UA has the crucial advantage that communication follows a uniform format and is robust and secure with the use of OPC UA interfaces," says Christian Stickling, Information Technology in Appliance, Miele, summarizing the main features.
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