GB/T 38845-2020 (English Version) PDF

Scope: This standard specifies a set of operating parameters and requirements used to describe valve/actuator accessories, which can be used for the operating attribute list (OLOP) and device attribute list (DLOP) of valve/actuator accessories (including positioners and IOP converters). . This standard applies to the description of electronic data interchange process locators. Note 1: The structure of OLOP and DLOP conforms to the general structure defined in GB/T 20818.11-2018 and IEC 61987-21: 2015 and the structural basis defined in GB/T 20818.10-2017. DLOP also conforms to the structure defined in IEC 60534-7 the term. Note 2: The attribute library and block library used in the attribute list (LOP) are given in Appendix A and Appendix B respectively.

GB/T 38845-2020 Referenced Document

GB/T 20818.10 Industrial-process measurement and control—data structures and elements in process equipment catalogues—Part 10: Lists of properties(LOPs) for industrial-process measurement and control electronic data exchange fundamentals—Fundamentals
GB/T 20818.11 Industrial-process measurement and control.Data structures and elements in process equipment catalogues.Part 11:Lists of properties (LOPs) for measuring equipment for electronic data exchange.Generic structures
IEC 61987-21:2015 Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 21: List of Properties (LOP) of automated valves for electronic data exchange - Generic