WP6 Plant Engineering and Commissioning. The following figure shows the workflow of WP6 Use Case, taking into account the different users involved: Automation Engineer(A-Eng), Line Manager (LM), Designer (Dsg) and Technical Leader (TL). The rounded steps are the ones in which interaction with Linked Data has been found and thus, the ones in which access control system must intervene. This scenario can be described from different points of view, depending on the type of user. The steps in which access to Linked Data is performed are in bold:
WP6 Plant Engineering and Commissioning. COMAU The following figure is a simplification of the WP6 workflow shown above and indicated how the different actors involved in the use case access Linked Data in order to obtain information: Customer’s Site OPC Comm. (Ethernet) OPC Data Server •Monitoring of production and line status •Log of faults Linked Data Figure 66: WP6 Linked Data workflow The data that will be shared in Linked Data and, thus, needs to be protected is the data provided by the OPC. The PLC (Programmable Logic Controller) that manages all the I/O of the production line has to share its data by the OPC Siemens, in order to give information about the line behaviour. These data are byte or bool format. The following information will also be stored and shared in Linked Data and will be helpful for a lot of commissioning activities: Theoretical Cycle time Meeting Minutes Drawing Files Activity check list Open issues Video tutorials Spare parts available
WP6 Plant Engineering and Commissioning. The commissioning process executed in automotive plants involves several actors inside COMAU organization. In fact, in this use case, many different departments work together inside COMAU (mechanics, layout drawers, electricians, SW development, etc.) when designing a new automotive plant. Thus, the challenge in this use case is to provide a mechanism of sharing information between different departments by means of Linked Data. It is important to assure that only authorized users from the appropriate departments can access the requested information.
WP6 Plant Engineering and Commissioning. During the commissioning activity, there is a team engaged in the customer’s site and one in COMAU offices. The first one includes all the specialized technicians that work directly on the building of the production line, such as mechanics, that carry on the hardware implementation and assembly of the line frame, electricians, that provide the wiring, piping, and network installation, and automation engineers, that have to manage the commissioning of the software or rather the link between all the different parts that form the whole production line, giving life to the movement of the machine, its coordination, diagnostic and efficient productivity. This group is coordinated on high level by the Line Manager. The second team is mainly composed by designers. They project and deliver the documentation required in the commissioning phase, but their jobs do not stop when the commissioning starts, moreover they are involved in managing modifications and variations that come from the construction feedback or customer’s requests. Designers refer to a Technical Leader which takes decisions, links the design with the commissioning and finally covers the role of customer interface. Taking this into account, some common ComVantage roles can be defined: CV_WP6_Mechanic CV_ WP6_Electrician CV_ WP6_Automation_Engineer CV_ WP6_Line Designer CV_ WP6_Designer CV_ WP6_Technical_Leader Changes of roles assigned to users or the permissions assigned to different roles do not occur very frequently and they will be quite static overtime.
