GB/T 20818.21-2020 Industrial-process measurement and control—Data structures and elements in process equipment catalogues—Part 21:Lists of properties (LOP) for automated valves for electronic data exchange—Generic structures

Scope

This part of GB/T 20818 specifies:
● A general data dictionary (CDD) that collects the characteristic descriptions of various automatic valves, including control valves, automatic on/off valves, and process regulators;
● The general structure of the operation attribute list (OLOP) and device attribute list (DLOP) for final control elements that comply with IEC 6198710.
The general structure of OLOP and DLOP contains the most important blocks for final control elements. The relevant blocks for specific device types are described in other parts of the IEC 61987 series of standards. Similarly, this part does not deal with device attributes. For example, the OLOP and DLOP for shut-off valves and angle-travel valves are specified in IEC 61987-22.
Note: In the classification (see Figure 1), "final control elements" only include specialized automatic valves and process regulators. In practice, there are other specialized devices that are not considered in this part.

Development Information

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Referenced Standards

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