ANSI/INCITS 37-1999
Revision, redesignation, and consolidation of ANSI X3.37-1995, ANSI X3.37/AM 1-1998,ANSI X3.37-1995/AM 2-1998. This standard establishes the form for and the interpretation of programs expressed in the Automatically Programmed Tools (APT) language and of the System-Neutral CLFILE (SCL), which can be generated by processors, such as APT, or by graphical systems. The purpose is to promote portability of these input language programs to a wide variety of computers. In addition, the SCL permits commonality and portability, regardless of the source that produces it, to a wide variety of manufacturing equipment. APT is an English-like language for describing operations for numerically controlled machines. An APT language input program is converted by a computer processor and, probably, subsequently by a postprocessor intoan ordered set of instructions for numerically controlled machines.