What is OPC in computer?
What is OPC in computer?
Open Platform Communications (OPC) is an interoperability standard for the secure exchange of industrial automation data. It is designed to be platform-dependent so devices from different vendors can exchange information.
What is OPC UA and DA?
Thus OPC can be considered as language for the communication between machines in industries, in which one of the latest version of OPC that is OPC UA (Unified Architecture) is a cross-platform protocol for machine to machine communication like English and on the other hand the older version of OPC is OPC DA (Data …
What is DCOM and OPC?
OPC technology relies on Microsoft’s COM and DCOM to exchange data between automation hardware and software; however it can be frustrating for new users to configure DCOM properly. If you have ever been unable to establish an OPC connection or transfer OPC data successfully, the underlying issue is likely DCOM-related.
What is OPC in DCS?
Open Platform Communications (OPC) is a series of standards and specifications for industrial telecommunication. They are based on Object Linking and Embedding (OLE) for process control.
What is OPC XML DA?
The OPC XML-DA (Data Access) specification builds on the OPC Data Access specifications to communicate data in XML. It incorporates SOAP and Web services. The current version of the OPC XML-DA specification is 1.01.
What is OPC and how does it work?
OPC is a software interface interoperability standard that allows secure and reliable exchange of data between Windows programs and industrial hardware devices. It is platform-independent and ensures the continuous flow of information across multiple vendor devices.
What port does OPC DA use?
port 135
When an OPC client connects to an OPC server, it connects to port 135 (the RPC port mapper), which assigns one TCP port and one UDP port to the component.
Can OPC DA run on Linux?
The OPC server you are connecting to, however, can run on any operating system or platform, as long as it exposes the right communication interfaces. This is especially common with OPC Unified Architecture servers; many of them run on Linux, or various embedded devices and systems.
Does OPC DA use DCOM?
All OPC DA (Data Access), A&E (Alarms & Events), and HDA (Historical Data Access) communication is based on COM and DCOM. OPC clients and servers use COM to communicate with each other over the same machine and use DCOM to communicate directly with each other across a network.
What ports does OPC use?
When an OPC client connects to an OPC server, it connects to port 135 (the RPC port mapper), which assigns one TCP port and one UDP port to the component. Communication between client and server is directed to those ports.
What is OPC instrumentation?
OPC stands for Open Platform Communications or some say OLE (Object Linking and Embedding) for Process Control. It is a type of protocol used in Industrial Automation. The OPC is always used in the Client/Server pair. The OPC server converts the hardware communicated data from PLC into OPC protocol.
Why is OPC needed?
An OPC server reduces the load on data source devices as it enables communication with several applications, while having only one connection with the data source. This reduces multi-access from the data source, and hence reduces the load on the data source.