Knowledgebase:
Node Types UNDEFINED and Nodes not on any Branch or Parent Object
Posted by Michael J. Witte on 04 August 2011 01:28 PM
Question: What do these errors mean?

** Warning ** Potential Node Connection Error for object PIPE:ADIABATIC, name=CW SUPPLY SIDE OUTLET PIPE
** ~~~ ** Node Types are still UNDEFINED -- See Branch/Node Details file for further information
** ~~~ ** Inlet Node : CW SUPPLY SIDE EXIT PIPE INLET NODE
** ~~~ ** Outlet Node: CW SUPPLY OUTLET NODE

** Warning ** Node Connection Error for object PIPE:ADIABATIC, name=CW SUPPLY SIDE OUTLET PIPE
** ~~~ ** Pipe Nodes not on any Branch or Parent Object
** ~~~ ** Inlet Node : CW SUPPLY SIDE EXIT PIPE INLET NODE
** ~~~ ** Outlet Node: CW SUPPLY SIDE OUTLET NODE


Answer: These errors mean that the node names and/or object names are not used consistently in the component, it's branch, and/or the splitter, mixer or branch list. The second warning above indicates that the pipe name and node names in the pipe object do not match the same in the branch object which holds the pipe.

Branch,
CW Supply Outlet, !- Name
0, !- Maximum Flow Rate {m3/s}
, !- Pressure Drop Curve Name
Pipe:Adiabatic, !- Component 1 Object Type
CW Supply Side Outlet Pipe, !- Component 1 Name
CW Supply Side Exit Pipe Inlet Node, !- Component 1 Inlet Node Name
CW Supply Outlet Node, !- Component 1 Outlet Node Name
PASSIVE; !- Component 1 Branch Control Type

Pipe:Adiabatic,
CW Supply Side Outlet Pipe, !- Name
CW Supply Side Exit Pipe Inlet Node, !- Inlet Node Name
CW Supply Side Outlet Node; !- Outlet Node Name

In this case, the outlet node names do not match.
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