Your control of MFS

IMS provides MFS facilities that can assist you, or allow a remote program to control the display or transmission of output messages.

Operator logical paging
Operator logical paging allows you (or, for SLU P, a remote program, or ISC subsystems) to request a specific logical page of an output message. It is defined on a message basis in the PAGE= operand of the MOD's MSG statement.
Operator control tables
Input device fields can be defined to invoke MFS control functions when either the data or the data length satisfies a predefined condition. Do this by defining one or more operator control tables and including the related table name in the device field definition.
3270 or SLU 2-only feature definitions
If you use SLU 2 or a 3270, MFS provides several ways to invoke MFS control functions.
Paging action at the device
The paging operation for an MFS device depends on MFS control block definitions, the output message content, and your input. If the device is a printer, each physical page of each logical page is transmitted to the device in sequence and the message is dequeued.
Unprotected screen option
IMS allows you to leave the screen in unprotected status when an output message is sent to the 3270 display and the message is formatted by MFS. This option is provided on a terminal-by-terminal basis or on a message-by-message basis, except messages bypassing MFS.
3290 in partitioned format mode
Support of 3290 partitioning and scrolling is provided for devices defined to IMS as SLU 2 terminals. Partitioning and scrolling are not provided for devices using non-SNA VTAM®.
3180 in partitioned format mode
IMS support for the 3180 in partitioned format mode is provided through 3290 partitioning and scrolling support.

Parent topic: MFS message formatting functions

Related concepts

Operator logical paging of output messages