Beginning an EDF session (dual-screen mode)

About this task

You can also use EDF in what is known as dual-screen mode; that is, using one terminal to monitor a transaction running at a second terminal.

This mode is started by adding the terminal identifier (termid) of the second terminal to the CEDF command at the first terminal:

CEDF tttt

The message that CEDF gives in response to this depends on whether there is already a transaction running on the second terminal. If the second terminal is not busy, the message displayed at the first terminal is:

TERMINAL tttt: EDF MODE ON

and nothing further will happen until a transaction is started on the second terminal, when the PROGRAM INITIATION display will appear.

If a transaction is already running on the second terminal, the message displayed at the first terminal is:

TERMINAL tttt: TRANSACTION RUNNING: EDF MODE ON

CEDF then picks up control at the next command processed and presents the appropriate display. At the first terminal, you can then follow the sequence of commands in the transaction running at the second terminal.