Displays or sets the activities of the USER Interface program (which enables your application to send/receive messages to/from an external program). The :USR setting is stored in your database. When your application is initiated, stored settings are reapplied. Security level is Controller.
:USR displays the activities of the USER Interface program:
Whether the USER Interface program is currently running
Number of requests sent to the USER program
Number of reply messages received by the application
Number of requests completed
:USR+ initiates your USER Interface program.
:USR- causes your USER Interface program to go to End of Job (EOJ) when there are no outstanding messages.