This section describes an example of the OPC UA server according to Figure 58, as an application example of the application software using the CSP+ for machine.
This example shows that the OPC UA server itself as the application software using the CSP+ for machine does not provide the function for the machine users and other application software such as SCADA and MES provides the monitoring and management functions for the machine users. When the application software using the CSP+ for machine is an OPC UA server, the address space that the OPC UA server discloses to the OPC UA clients is created from the CSP+ for machine based on the specifications specified in this document.
Since this system configuration is achievable, vendors of application software such as SCADA and MES have the following advantage.
- Since not a machine's own communications protocol but the standard OPC UA can be used for communications with machines, the development volume for the communication function can be reduced.
Vendors of OPC UA server application software have the following advantage.
- Supporting the CSP+ for machine allows handling many machines supporting the CSP+ for machine as communication partners.
Machine vendors have the following advantages.
- Since there is no need to request an application vendor to support the machine's own protocol when requesting the application vendor to develop application software dedicated to the machine, the development cost can be reduced.
- Since information to be disclosed to the application software such as process statuses and operation histories of the machine can be limited to the range described in the CSP+ for machine, information related to know-how of the machine can be set to confidential.