Transferring Piping Data - PDS - Help

Plant Design System (PDS) Piping Design Graphics (PD_Design)

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Piping data defined in can be transferred to PDS® using the Plant Design System (PDS) to PDS Piping Data Transfer capability. The ability to transfer PDS P&ID data to PDS 3D is documented in the PDS documentation and is therefore not covered here.

Piping System Schematic and Physical Representations

Although both Plant Design System (PDS) and PDS describe the same plant, a one-to-one correspondence between the components in the two models does not always exist. Plant Design System (PDS) to PDS piping data transfer is essentially the transfer of data from the Plant Design System (PDS) segment table to the PDS piping segment table, pdtable_12_xx.

The conceptual definition of a segment is the same in both applications, however that does not mean that there is a one-to-one correspondence between these two tables. For example, the number of segments is not the same, even if the Plant Design System (PDS) and PDS piping model exactly match from a design point of view. This situation is caused by the different drafting practices of Plant Design System (PDS) and PDS. For example, drains are shown as macro symbols on the Plant Design System (PDS) drawing. However, drains are branch segments in the PDS model. Also, process connections to instruments are recorded as instrument signal lines in the Plant Design System (PDS) database, but on the PDS side, process connections are piping segments.

Due to these differences, the data transfer process requires establishing a logical link between the corresponding segments. This linkage can either be in the form of interactive input from the PDS designer, who can choose a piping segment in a drawing by clicking it, or be a combination of attributes defined as unique criteria in the SPTransferOpt file. For more information on attribute mapping, see Mapping Attributes.

Data Transfer in the Real World

When you model a new line in PDS, use the Data from P&ID option, and then click a Plant Design System (PDS) segment. By doing this, you are establishing the logical link. After this link is established, future data transfers can be fully automated.

However, as with most plants, there is a time when Plant Design System (PDS) drafting and PDS modeling continues in parallel. The P&IDs are changing while piping modeling continues in PDS. When the designer models a particular pipeline, the equivalent Plant Design System (PDS) segments may not yet exist in the Plant Design System (PDS) database, creating a significant amount of piping that does not have the associative link between Plant Design System (PDS) and PDS.  This is just one example of how creating and updating links is an ongoing process rather than a one-time effort. For more information about maintaining links between Plant Design System (PDS) and PDS, see Creating and Maintaining Links.

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