The EntireX documentation contains the following PL/I-related topics:
The EntireX PL/I Wrapper provides access to RPC-based components from PL/I applications. It enables you to develop both client and server applications. More info
The Software AG IDL Extractor for PL/I extracts a Software AG IDL file from a PL/I source. The PL/I source can be located in the file system or accessed remotely within a PL/I RPC environment definition. More info
EntireX Broker ACI Programming from the perspective of progamming language PL/I. A copybook with the ACI control block definition is provided. More info
See also EntireX Workbench.