BS IEC 62859 pdf free download

BS IEC 62859-2016 pdf free download.Nuclear power plants一 Instrumentation and control systems – Requirements for coordinating safety and cybersecurity.
This document provides a framework to manage the interactions between safety and cybersecurity for nuclear power plant (NPP) systems, taking into account the current SC 45A standards addressing these issues and the specifics of nuclear l&C programmable digital systems.
NOTE In this document (as In IEC 62645), cybersecurlty relates to prevention of, detection of. and reaction to malicious acts perpetrated by digital means (cyberattacks). In this context, it does not cover considerations related to non-malevolent actions and events such as accidental failures, natural events or human errors (except those degrading cybersecurity). Those aspects are of course of prime importance but they are covered by other SC 45A documents and standards, and are not considered as cybersecurity related in this document.
This document establishes requirements and guidance to:
— integrate cybersecurity provisions in nuclear l&C architectures and systems, which are fundamentally tailored for safety:
— avoid potential conflicts between safety and cybersecurity provisions:
— aid the identification and the leveraging of the potential synergies between safety and cybersecurity.
This document is intended to be used for designing new NPPs, or modernizing existing NPPs, throughout l&C programmable digital systems lifecycle. It is also applicable for assessing the coordination between safety and cybersecurity of existing plants. It may also be applicable to other types of nuclear facilities.
This document addresses l&C programmable digital systems important to safety and l&C programmable digital systems not important to safety. It does not address programmable digital systems dedicated to site physical security, room access control and site security surveillance.
This document is limited to l&C programmable digital systems of NPPs, including their on-site maintenance and configuration tools.
Annex A provides a rationale for and comments about the scope definition and the document application, in particular about the exclusions and limitations previously mentioned.
This document comprises three normative clauses:
• Clause 5 deals with the overall l&C architecture;
• Clause 6 focuses on the system level:
• Clause 7 deals with organizational and operational issues.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 60709:2004, Nuclear power plants — Instrumentation and control systems important to safety — Separation
IEC 60880:2006, Nuclear power plants — Instrumentation and control systems important to safety — Software aspects for computer-based systems performing category A functions
IEC 61500:2009. Nuclear power plants — Instrumentation and control systems important to safety — Data communication in systems performing category A functions
IEC 61513:2011, Nuclear power plants — Instrumentation and control important to safety — General requirements for systems
IEC 621 38:2004, Nuclear power plants — Instrumentation and control important for safety – Software aspects for computer-based systems performing category B or C functions
IEC 62340, Nuclear power plants — Instrumentation and control systems important to safety — Requirements for coping with common cause failure (CCF)
IEC 62566:2012, Nuclear power plants — Instrumentation and control important to safety — Development of HDL-programmed integrated circuits for systems performing category A
functions
IEC 62645:2014, Nuclear power plants — Instrumentation and control systems — Requirements for security programmes for computer-based systems
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 62645. in IEC 61513 and the following apply.
NOTE If for a given term, different definitions are provided in these three sources, the definition of the present document applies
ISO and IEC maintain terminological databases for use In standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.orgl
• ISO Online browsing platform: available at http:/lwww.iso.org/obp
3.1 computer-based Item
item that relies on software instructions running on microprocessors or microcontrollers
Note 1 to entry: The term item can be replaced by the terms system, or equipment, or device.
Note 2 to entry: A computer-based item Is a kind of programmable digital item.
Note 3 to entry: This term is equivalent to sottware-based item.
3.2 cyberattack
attempt by digital means to destroy, expose, alter, disable, steal or gain unauthorized access to or make unauthorized use of an asset
Note 1 to entry: Cyberattacks include targeted and non-targeted (e.g. maiwares) attacks by digital means. Cyberattack is synonymous with digital attack.BS IEC 62859 pdf download.