I designed a piping system in SMartMarine3D (many isometric pipelines connected), then I save isometric pipelines by *pcf file .Caesar II can open this file ,but I want analysis a piping system not a pipeline.
Anyone can show me the way Caesar II can open many isometric file into a piping system.
Thanks

CAESAR II can not read "isometric" files. The available data types for import are listed in the "External Interfaces" menu.

With regards to the PCF import - if you import all your PCF files into individual CAESAR II models, you can later (from withing the Piping Input Module) combine them into a single model. This ability is discussed in the Documentation.