IBM OS/390 User Manual

These may be handy for operating a console with a lot of traffic, when you want
to see a multi-line display without having it roll off the screen. However,
operators need to be able to manipulate these display areas for efficient
operation.

Enter 

″

K A,NONE

″ 

to get rid of display areas, or 

″

K A,nn

″ 

to create an area of

size 

″

nn

″.

An alternative is to use the SDSF ULOG panel which limits the display to just
those commands and messages issued for the specific user. It can also be
scrolled back and forth to review past messages.

Program Function Keys (PFKs) can be set with the CONTROL command 

″

K

n,PFK

″ 

or by activating a PFK Table. You can display the definitions with 

″

D

PFK

″.

Extended MCS consoles are sort of like 

″

virtual

″ 

MCS (Multiple Console Support)

consoles that are implemented through software.

You can define a TSO/E user to operate an extended MCS console from a TSO/E
terminal. The user can issue the TSO/E CONSOLE command to activate the
extended MCS console or use SDSF.

An installation can also write an application program to act as an extended MCS
console. An authorized program issues the MVS authorized macro MCSOPER to
activate and control the extended MCS console and uses other MVS macros and
services to receive messages and send commands.

See 

OS/390 MVS Planning: Operations, GC28-1760 for details.

Use the CONSOLE command to establish a full extended MCS console mode in
“Command” mode or “Conversational” mode. (The OPERATOR command can
also be used for operator commands, but is limited to the OPERATOR
subcommands.) See 

OS/390 TSO/E System Programming Command Reference,

SC28-1972 for details.

Chapter 28. Orientation to OS/390 Console Operation