British Standards Institution

Source:: IEC
Committee:: GEL/65/5 - Devices and integration in enterprise systems
Categories:: Information management | Standardization. General rules | ICT | Telecommunications. Audio and video engineering | Telecommunication systems | Data communication networks

Scope

This specification of the OPC Unified Architecture (OPC UA) series defines an Information Model. The Information Model describes the basic infrastructure to model file transfers.

Purpose

This document describes an information model for file transfer. Files could be modelled in OPC UA as simple Variables using ByteStrings. However, the overall message size in OPC UA is limited due to resources and security issues (denial of service attacks). Only accessing parts of the array can lead to concurrency issues if one client is reading the array while others are manipulating it. Therefore, the ObjectType FileType represents a file with Methods to access the file. The life cycle of a file stored on a hard disk and an instance of the FileType representing the file in an OPC UA AddressSpace can be independent

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal

Proposal start date:

24/01/2023

Proposal end date:

07/03/2023

2. Draft

3. Public Comments

4. Comment Resolution

5. Approval

6. Publication

Learn more about the standards development process

Standards Development

PNW 65E-955 ED1: OPC Unified Architecture ? Part 20: File Transfer

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