Rational Developer for System z
PL/I for Windows, Version 8.0, Programming Guide

PLI command

The second way to specify compile-time options--overriding option defaults and IBM.OPTIONS and IBM.PPxxx--is on the PLI command when you invoke the compiler (see Using the PLI command to invoke the compiler). The options apply only to the current compilation.

Rational Developer for System z
PL/I for Windows, Version 8.0, Programming Guide