SACS Modules:
1. Environmental Loading (sacwsea.exe)
2. Dynamic Wave (sacwsst.exe)
3. SACS Solver (sacswslv.exe)
4. Foundation (sacwpsi.exe)
how do I access to these modules?
I'm not quite sure what you mean by accessing the modules. These programs are run when an analysis is performed. You can set up a Time History Wave, Wind & Force analysis by selecting Dynamic / Time History Wave, Wind, _Force analysis type in the Analysis Generator tab of SACS Executive. The run file (*.runx) that is created by the Analysis Generator uses the input files specified and the programs located in the SACS System Directory (Installation Directory) to perform the analysis.