Since the Gamma language is based on Lisp (ie. SCADALisp), programs can be written and executed using either Gamma or Lisp grammar. How to execute a Gamma program is discussed in Stand_Alone Executable Programs in the Getting Started chapter of this Guide, as well as in the next two sections of this chapter.

Writing Lisp programs is beyond the scope of normal Gamma programming, but it may be useful from time to time to invoke a Lisp executable. This is done in a similar way to Gamma. Stand-alone programs will invoke the Lisp engine by using the following shell directive as the first line of the file:

#!/usr/cogent/bin/lisp

The Photon dialect is available through:

#!/usr/cogent/bin/phlisp