A module Cicode variable is specific to the file in which it is declared. This means that it can be used by any function in that file, but not by functions in other files.
By default, Cicode variables are defined as module, therefore prefixing is not required (though a prefix of MODULE could be added if desired). Module variables should be declared at the start of the file. For example:
STRING sDefaultPage = "Mimic";
Status = PageDisplay(sPage);
IF Status <> 0 THEN
Note: Use module variables sparingly if at all. If you have many such variables being used by many functions, finding bugs in your program can become time-consuming. Use local variables wherever possible.