OSNS
Display Consoles
Sources: GC38-Q260 OS/VS2 Displav Consoles
GC38-02550S/VSl
Display Consoles
The CONTROL command (abbreviated
K)
controls
the
display console. Each function
of
this command
is
described in an appropriate place
in
the
SRL.
To
request a
summary
of
the
CONTROL command operands and
the
functions
that
they
pertorm,
enter
the
following commands:
{
DISPLAYl
D f
C,K
[,L=
{~}
C,K specifies
that
a summary
of
CONTROL command operands
is
to
be displayed.
L=
{
~~
} specifies the display area (a), console (ccl,
or
both
(cca)
at
which
the
display
is
to
be
presented. If
yo~
omit
this operand,
the
display
is
presented
in
the
first available display area
on
the
console through which you entered
the
command;
(unless routi"g instructions are
in
effect).
For
example,
to
display a summary
of
CONTROL command operands
in
display area
A
of
console 10, enter:
D C,K,L=10A
A printed summary
of
Control command formats appears in OSIVS2 (JES 2) com·
mands summary which you will find in this section.
PROGRAM FUNCTION KEYS
Entering Commands with
the
PFKs
The program function keyboard
is
a group
of
12 keys (called PFKs) located
on
the
right side
of
the
operator
console keyboard.
(It
is
an optional feature
of
the
model
3277 display console,
and
is
not
available for
the
model 158 display console.) One
or
more PFKs may be available
to
yo~
for entering commands.
The
PFKs are designated
for operator command
entry
by
the
system programmer during system generation.
Each PFK
is
defined as conversational
or
nonconversational. The commands associated
with a nonconversational PFK are entered immediately when you press
the
key.
The
commands associated with a conversational PFK are presented in
the
entry
area,
one
at
a time, when
you
press
the
key. You may make changes
to
them
before you
enter
them.
In place
of
keys,
the
Mod
158
Display Console provides a PFK line (above
the
instruc-
tion line) and entering
of
commands
by light pen.
How
to
Display the PFK Numbers
Use
the
following form
of
the
CONTROL command
to
display and erase
the
numbers
in
the
PFK display line:
{
D
PFK}
E PFK
D,
PFK specifies
that
the
numbers
of
the
PFKs designated for command
entry
are
to
be displayed
in
the
PFK display lir·e.
E
,f'FK
specifies
that
the
numbers are
to
be erased from
tha
PFK dispiay line.
Example:
To
request display
in
the
PFK display line (this line
is
located immediately
above
the
instruction iine), enter:
K D PFK
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