Host Environment Commands › ADDRESS EPI Commands

ADDRESS EPI Commands

ADDRESS EPI commands allow OPS/REXX programs to define and operate virtual terminals that interact with VTAM applications through the CA OPS/MVS External Product Interface (EPI) facility. Using EPI, OPS/REXX programs can:

• Log on to a VTAM application.
• Enter commands and data from a simulated virtual terminal keyboard.
• Read data from the virtual terminal screen.
• Log off from a VTAM application.
• Share a single session with applications (such as OMEGAMON) running in VTAM mode.
• Automate responses when a VTAM application triggers a system event; for example, when:
  • A message rule issues a message.
  • The application issues a command.
  • An OMEGAMON rule triggers an OMEGAMON event.
  • A request rule triggers a user-initiated event.
  • A TOD rule schedules an event at a predetermined time of day.

The ADDRESS EPI commands and procedures for using the EPI are so closely related that any discussion of EPI use needs to include descriptions of the commands. For this reason, the Command and Function Reference lists the EPI host commands, their keywords and return codes, and briefly summarizes what these commands do. For complete information about using EPI host commands, see the chapter “External Product Interface” in the User Guide.