【最新進展】OPC UA安全規范1.00版正式發布
發布時間：2020-03-23 作者：www.xstr.xyz
圖片來源：OPC Foundation
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Interoperable Functional Safety with OPC UA is Becoming a Reality與OPC-UA互操作的功能安全正在成為現實。
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The OPC UA Safety working group has achieved a key milestone publishing Release 1.00 of the specification for the interoperable communication standard for functional safety – OPC UA Safety “Part 15 OPC UA Core Specification”. OPC UA Safety is based on the black channel principle and currently addresses controller-to-controller communication using OPC UA clients/servers.
近期，OPC UA安全工作組已經完成了安全通信標準的突破性推進，發布了可互操作的功能安全通信標準規范第1.00版——OPC UA安全“第15部分OPC UA核心規范”。OPC UA安全基于黑通道原理，當前使用OPC UA客戶端/服務器的方式來實現控制器之間的通信。
OPC UA has progressively expanded the applications that can be served by the technology. Safety is the next important part of the OPC UA specification family and is now achievable. OPC UA Safety takes the requirements of modern and future safety technology into account.
OPC UA已經逐步擴大了該技術的應用范圍。OPC UA規范系列的下一個重要部分著重于安全，目前來看是完全可以實現的。OPC UA安全規范因素融合考慮了現代和未來技術的要求。
While addressing all safety requirements defined in the relevant international standards, OPC UA builds on experience from existing safety protocols and addresses new use cases that have emerged since their development. For instance, OPC UA Safety supports the assignment of Safety-IDs to series machines and allows for dynamically changing the communication partner during runtime: a prerequisite for modern production processes with batch size 1, where machines or machine parts must be re-grouped frequently. OPC UA Safety enables the transmission of up to 1,500 bytes of arbitrarily structured data in any network without limiting data rate for applications with a safety integrity level (SIL) of up to 4.
OPC UA在處理相關國際標準中定義的所有安全要求的同時，基于現有安全協議的經驗，同時要衡量可能面臨的新功能的應用。例如，OPC UA安全性支持將安全ID分配給一系列機器，并允許在運行時動態實時更改通信對象：這是批量大小為1的現代生產過程的先決條件，在此過程中，機器或機器部件必須頻繁地重新分組。OPC UA安全性允許在任何網絡中傳輸最多1,500字節的任意結構化數據，而不限制安全完整性級別(SIL)最高為4的應用程序的數據速率。
OPC UA Safety was initiated as a joint working group between the OPC Foundation and PROFIBUS & PROFINET International (PI) but has now been merged as a technical working group under the auspices of the Field Level Communication (FLC) initiative. Many well-known manufacturers are represented in the OPC UA Safety working group which ensures a uniform, worldwide and coordinated standard for safe communication developed for the first time. OPC UA Safety now becomes a core part of OPC UA specification framework of the OPC Foundation. The next steps include defining of safety test specification for certification as well as extension to OPC UA Pub/Sub allowing real-time and isochronous real-time applications.
OPC UA安全最初是OPC基金會和PROFIBUS & PROFINET國際(PI)之間的一個聯合工作組，但現在已經在現場級通信(FLC)倡議的支持下合并為一個OPC UA安全技術工作組。許多著名的制造商代表是該小組的成員，為了確保全球范圍內共同協調的統一標準安全通信問世。OPC UA安全目前已成為OPC基礎的OPC UA規范框架的核心部分。接下來的工作步驟包括為認證定義安全測試規范，以及擴展到OPC UA發布/訂閱模式，允許實時和同步的實時應用。
Invitation to Participate
邀請同仁參加
The OPC Foundation invites all its members to participate in a co-funding project to develop a safety layer stack according to the OPC UA Safety specification (SafetyProvider and SafetyConsumer) which can be combined with different underlying communication stacks (client/server and pub/sub mapping).
OPC基金會邀請其所有成員參與一個聯合贊助項目，根據OPC UA安全規范(安全供應商和安全用戶)開發一個安全層堆棧，可以與不同的底層通信堆棧(客戶端/服務器和發布/訂閱方式)相結合。
A service provider will be contracted to perform the implementation and to prepare software, documentation, verification and validation activities to allow a pre-certification of the software by notified bodies (e.g. TüV).
該項目包括將與服務提供商簽訂合同，由其執行實施并準備軟件、文檔、驗證和驗證活動，以允許通知機構(例如TUV)對軟件進行預認證。
Each co-funding company will receive unrestricted IP and source code rights on the development. It is planned to put the developed software under a dual license: an open source license for the source code intended for evaluation purposes and a commercial license for the complete safety stack package (source code, verification and validation documentation) which is maintained and supported by one or several service providers.
每個聯合贊助企業將獲得關于開發的不受限制的知識產權和源代碼權利。該計劃將開發的軟件雙重許可協議:源代碼的開源許可用于完整的安全評價目的和商業許可證棧包(源代碼,驗證和確認文檔)的維護和支持的一個或多個服務提供者。
The development costs will be shared equally between all participating companies.
開發成本將由所有參與企業均攤。