ISA-TR77.00.01 : 2019

1 Scope
2 Purpose
3 Definitions
4 Abbreviations (Acronyms)
5 Instrumentation
5.1 Instrument Index
5.2 Instrument Reports
6 Distributed Control System
6.1 DCS
6.2 DCS Reports
7 Circuit and Raceway
7.1 Circuit and Raceway
7.2 Circuit and Raceway Reports
Annex A - Database fields sample docs
Annex B - References
Annex C – Figures
FIG. C.1 & FIG. C.2 - NEW, ELECTRONIC, INSTRUMENT INDEX APPLICATION
FIG. C.3 - INSTRUMENT FORM
FIG. C.4 - EQUIPMENT FORM
FIG. C.5 - VENDOR FORM
FIG. C.6 - DRAWING FORM
FIG. C.7 - CALIBRATION FORM
FIG. C.8 & FIG. C.9 - REPORT MENU
FIG. C.10 - CRITICAL TRIP CIRCUIT REPORT
FIG. C.11 & FIG. C.12 - DISTRIBUTED CONTROL SYSTEM APPLICATION
FIG. C.13 - DCS LOOP FORM
FIG. C.14 - DCS CAE VIEW FORM
FIG. C.15 - DCS LOOP HEADER FORM
FIG. C.16 & FIG. C.17 - DCS REPORT FORMS
FIG. C.18 – CIRCUIT RACEWAY, CABLE FORM
FIG. C.19 – CIRCUIT RACEWAY, RACEWAY FORM
FIG. C.20 & FIG. C.21 - CIRCUIT RACEWAY, REPORT FORM
Annex D - Case Examples of Instrument Report Histories
Example # 1
Example # 2
Annex E- Additional Information

ISA-TR77.00.01-2019, Fossil Fuel Power Plant – Definitions and Basic Control Concepts, provides a comprehensive collection of definitions and fundamental control concepts specifically tailored for the fossil fuel power industry. This technical report serves as a detailed reference for professionals in roles such as engineering, operations, maintenance and sales within fossil fuel power plants. It consolidates terminology across the ISA-77 series of standards to promote consistency and clarity, while also explaining key design considerations such as control station hierarchy, transmitter redundancy, lead/lag equipment management, input-output partitioning, and tripping redundancy. By offering clear explanations of specialized terms and control strategies, it supports better communication and understanding among teams working on fossil fuel power plant instrumentation and control systems.