This part of IEC 61987 provides
• operating list of properties (OLOP) for the description of the operating parameters and the collection of requirements for level measuring equipment, and
• device lists of properties (DLOPs) for the description of a range of level measuring equipment types. The structures of the OLOP and the DLOPs correspond to the general structures defined in IEC 61987-11 and agree with the fundamentals for the construction of LOPs defined in IEC 61987-10.
Aspects other than the OLOP, needed in different electronic data exchange processes 1 described in IEC 61987-10, will be published in IEC 61987-92 .
The locations of the libraries of properties and of blocks used in the LOPs concerned are listed in the Annexes C and D.dition 1.0 2016-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Industrial-process measurement and control – Data structures and elements in process equipment catalogues – Part 15: Lists of properties (LOPs) for level measuring equipment for electronic data exchange Mesure et commande des processus industriels – éléments et structures de données dans les catalogues d’équipements de processus – Partie 15: Listes de propriétés (LOP) pour équipement de mesure de niveau pour l’échan