ISA 77.20 : 1993 : R2005

1 Scope
2 Introduction
3 Definitions
4 General elements of a simulator
5 General requirements
     5.1 Simulator capabilities
     5.2 Trainee environment
     5.3 Systems to be simulated
     5.4 Training capabilities
     5.5 Simulation computer system hardware
     5.6 Simulator computer systems software
6 Performance criteria
     6.1 Steady-state operation
     6.2 Transient operations
7 Simulator testing
     7.1 Simulator performance testing
     7.2 Simulator hardware testing
     7.3 Simulator system testing
8 Design control
9 Documentation
     9.1 Instructor documentation
     9.2 Software documentation
     9.3 Hardware documentation
10 Applicable standards
11 References
Appendix A - Three types of simulators
Appendix B - General modeling requirements
Appendix C - General data requirements
Appendix D - Specific documentation for three types of
             simulators
Appendix E - Simulation versus stimulation

Identifies the functional requirements for several types of fossil-fuel power plant control room simulators primarily used for training operators. Sets criteria for the degree of hardware replication and software modeling detail, performance and functional capabilities of the simulated control room instrumentation. Does not completely deal with stand-alone DCS-based trainers/simulators, or simulators used for test and engineering purposes, eg. part-task training devices for specialized training. Does not identify criteria for using simulators in training programs.