GB/T 16656.22-2023 Active National standards

GB/T 16656.22-2023 Industrial automation systems and integration—Product data representation and exchange—Part 22:Implementation methods:Standard data access interface

Publish Date: 2023-09-07 Implement Date: 2024-04-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 16656.22-2023

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Industrial automation instrumentation and control devices

ICS Name: The measurement and control of industrial processes

Publish Date: 2023-09-07

Implement Date: 2024-04-01

Pages: 152 pages

Scope

This document specifies the functional characteristics of the data access interface. This interface is called the Standard Data Access Interface (SDAI). SDAI specifies the application operations that can be used to acquire and process data, the structure of which is expressed using GB/T 16656.11 (EXPRESS language). The standard SDAI is independent of any computing language or system. The functional specifications defined by SDAI in a specific computing language are called SDAI language bindings. The items of SDAI language bindings are specified in the implementation method series of GB/T 16656. The following content is within the scope of this document: -- Accessing and processing instances of entities described using the EXPRESS data specification language; -- Accessing multiple databases by a single application at the same time; -- Ensuring that the application's ability to perform grouping operations can be saved or canceled according to the application's needs; -- Processing data by the application by reading a dictionary that describes data elements; -- Being able to call constraints specified by the EXPRESS language for verification according to the application's judgment; -- Supporting the management of dependencies between entity instances; -- Describing the functionality of logical collections of entity instances, which define the set of entities that allow entity instances to refer to other entity instances; -- Describing the functionality of logical collections of entity instances, which define the set of entities that validate global rules; -- Supporting the use of data created in another mode in a related environment. The following content is not within the scope of this document: -- The complete behavioral specifications of SDAI implementation in a multi-user environment;