5.6.3 As Client to RDMLX IBM i Server

Use this facility to execute a LANSA application in client/server mode with support for RDMLX. This means that all your RDML and RDMLX level database access requests will be automatically re-routed into your remote  server database.

...

Technical Note 2: Special provisions apply to running batch style applications from this interface. Refer to the documentation of the CONNECT_FILE built-in function before attempting to run batch style programs that contain SELECT-UPDATE WITH_RRN()-ENDSELECT or SELECT-DELETE WITH_RRN()-ENDSELECT loops.

Also See
5.7 Additional Execution Parameters
⇑ 5.6 Execute Options