Nodes of different colours represent the following:
Solid arrows point from one derived type to another which extends (inherits from) it. Dashed arrows point from a derived type to another type containing it as a components, with a label listing the name(s) of said component(s). Where possible, edges connecting nodes are given different colours to make them easier to distinguish in large graphs.
| Type | Visibility | Attributes | Name | Initial | |||
|---|---|---|---|---|---|---|---|
| integer, | public | :: | LoopType | = | 0 | ||
| integer, | public | :: | LoopNum | = | 0 | ||
| integer, | public | :: | BranchNum | = | 0 | ||
| integer, | public | :: | CompNum | = | 0 | 
TYPE PlantConnection
  INTEGER                          :: LoopType              = 0       !1 = Plant, 2 = Condenser
  INTEGER                          :: LoopNum               = 0
  INTEGER                          :: BranchNum             = 0
  INTEGER                          :: CompNum               = 0
END TYPE PlantConnection