Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 24-2: List of properties (LOPs) of valve/actuator accessories for electronic data exchange
IEC 61987-24-2:2017 provides - an operating list of properties (OLOP) for the description of the operating parameters and the collection of requirements for accessories attached to automated valves, listed in Annex A, - device lists of properties (DLOPs) for accessories attached to automated valves, listed in Annex B.