BS IEC 61839 : 2000

FOREWORD
1 Scope and object
2 Normative references
3 Definitions
4 Process of functional analysis and assignment
      4.1 General description
             4.1.1 Functional analysis
             4.1.2 Assignment of functions
      4.2 Basic technical team for FA and A
5 Functional analysis
      5.1 General
      5.2 Identification of functions
      5.3 Identification of basic information and
             processing requirements
             5.3.1 Individual function analysis
             5.3.2 Identification of time requirements
                      and representative events
6 Assignment of functions
      6.1 General
      6.2 Control function analysis
             6.2.1 Identifying functional units
             6.2.2 Characterising the control functions
             6.2.3 Identifying control function
                      characteristic measurements
      6.3 Development of assignment criteria
             6.3.1 Characteristic measurement and man-
                      machine capabilit and guides
             6.3.2 National law, national and
                      international legal rules
             6.3.3 Utility and vendors' rules and policies
             6.3.3 Utility and vendors' rules and policies
      6.4 Assignment process
Annex A (informative) Examples of decomposition of goals and
                      subgoals
Annex B (informative) Beginning of PWR (pressurized water
                      reactor) functional analysis
Bibliography
Figure 1 - Illustrated FA and A activities given in IEC 60964
Table 1 - Humans and machines in the functional domain and in
          the physical domain
Table 2 - Assignment of functions to humans and machines -
          Basic structure

Specifies functional analysis and assignment procedures (FA and A, sometimes calles allocation of functions) for the design of the control-room system for nuclear power plants and gives rules for developing criteria for the assignment of functions. Supplementary to IEC 60964, which applies to the design of the control-room for nuclear power plants. Provides specific requirements to carry out functional analysis and assignment required in 3.1 and 3.2 of IEC 60964, and therefore supersedes the guidance given in A.3.1 and A.3.2 of IEC 60964. Applies to the design of new control-rooms or backfits to existing control-rooms.