Terms and definitions – OPC Unified Architecture

For the purposes of this document, the terms and definitions given in OPC 10000-1, OPC 10000-3, and OPC 10000-8 as well as the following apply.

functional Parameter grouping entity

mode of operation (target mode, permitted modes, actual mode, and normal mode) for a Block

fixed set of mapping rules to allow unambiguous interoperability between Devices or Applications, respectively

logical representation of the interface between a Device and a Network

independent physical entity capable of performing one or more specified functions in a particular context and delimited by its interfaces

Server that manages integration of multiple Devices in an automation system

arrangement of Networks and Devices that constitute a communication topology

communication system based on serial data transfer and used in industrial automation or process control applications

variable of the Device that can be used for configuration, monitoring or control purposes

means used to communicate with one specific protocol

update method where the original software is overwritten during the transfer

update method where the new software is stored in a separate area

update method based on an accessible directory structure and a separate install method

single file that contains the data for the software update in a device specific format

update client that can be used for Devices of several vendors

version information of the software that is currently installed

version information for a Software Package that was transferred before and is ready to be installed

version information about an alternatively installable software that is located on the Server