1 Scope
This part of IEC 62443 specifies a comprehensive set of requirements for security capabilities for IACSservice
providers that they can offer to the asset owner during integration and maintenance activities of an Automation Solution. Because not all requirements apply to all industry groups and organizations, Subclause
4.1.4 provides for the development of Profiles that allow for the subsetting of these requirements.
Profiles are used to adapt this document to specific environments, including environments
not based on an IACS.
NOTE 1 The term “Automation Solution” is used as a proper noun (and therefore capitalized) in this part of IEC 62443 to prevent confusion with other uses of this term.
Collectively, the security capabilities offered by an IACSservice provider are referred
to as its Security Program. In a related specification, IEC 62443‑2‑1 describes requirements for the Security Management System of the asset owner.
NOTE 2 In general, these security capabilities are policy, procedure, practice and personnel
related.
Figure 2 illustrates how the integration and maintenance capabilities relate to the IACS and
the control system product that is integrated into the Automation Solution. Some of these capabilities reference security measures defined in IEC 62443‑3‑3 that the service provider must ensure are supported in the Automation Solution (either included in the control system product or separately added to the Automation Solution).
Figure 2
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Scope of service provider capabilities
In Figure 2, the Automation Solution is illustrated to contain a Basic Process Control System (BPCS), optional Safety Instrumented System (SIS), and optional supporting applications, such as advanced control. The dashed
boxes indicate that these components are “optional”.
NOTE 3 The term “process” in BPCS may apply to a variety of industrial processes, including
continuous processes and manufacturing processes.
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NOTE 4
Automation Solutions typically have a single control system (product), but they are not restricted to do so. In general, the Automation Solution is the set of hardware and software, independent of product packaging, that is used
to control a physical process (e.g. continuous or manufacturing) as defined by the
asset owner.
