Compares the differences in property and topology (or shape) values in the three-dimensional model and the design basis (for example, a P&ID). The purpose of the command is to update the properties on correlated objects so that values for mapped properties (design basis) from tools, such as SmartPlant P&ID and SmartPlant Instrumentation, are updated on the object if you specify to update and pass the values. You can also process deleted objects. As a result, you are managing the changes of the model to match the design basis without having to re-model.
The Smart 3D > View P&ID command displays both P&IDs and D&IDs.
Topology Checker
The topology checker simply starts at one end of the pipeline and moves to the end of the line. There are some rules that you should be aware of in order to make sure the topology checker is running properly.
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Tees and reducers have the unique ability to belong to three different runs. For the purpose of topology comparison, any piping component can be considered to be in two runs.
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A pipe run must be continuous for the topology to be checked properly. This means that no component (tees included) can belong to a different run along that line. For example, if the third component along a pipe run was a tee that belonged to the branch run, then the topology checker would not give proper results because the tee breaks the run. There are piping components that are still members of that first run, but the run is not continuous (left image: tee is not highlighted). After this tee is made a member of the original run, the topology checker gives proper results (right image: tee is highlighted).
For more information on the topology checker, see the Piping User's Guide.
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