4
When data
is
entered
in
the
extended display and
the
extended display becomes full,
the
oldest line
is
deleted when a new line
is
entered.
Data
in
the extended display can be
thought
of
as a page
of
data lines. A line
contains the data between new-line
and/or
line feed function characters. A
message
contains
the
data between the
start
of
transmission and end
of
transmission function
characters and contains one
or
more lines. These function characters are transmitted
by
the
5100
and
the
remote system
to
control
the
length and spacing
of
the lines.
Normally,
the
first
64
characters
of
the
14 most recent lines
of
the extended display
are displayed
on
the
screen; however, by using
the
scroll keys, you can move any
part
of
the
extended display
to
the
screen.
TRANSMITTING FROM THE KEYBOARD
When
the
5100
is
online with a remote system, each character you enter from
the
keyboard
is
displayed
on
the screen and transmitted
to
the
remote system. When
you
enter
a line longer
than
64
characters, each additional character entered
is
displayed
in
position
64
and
all
data on the display screen moves one position
to
the
left. Pressing EXECUTE indicates the end
of
the
line and moves the data on the
display screen
up
one line and
to
the
right so
the
first character
of
each line
is
in
position 1
on
the
display screen.
RECEIVING
If
the
5100
is
receiving data, each character
is
displayed
on
the
screen
as
it
is
received. A line containing
64
characters
or
less
is
displayed exactly
as
it
is
received. Lines longer
than
64 characters are formatted into 64-character lines on
the display screen
as
they are received. When the end
of
transmission character
is
received,
the
format
of
the
longer lines changes and only the first
64
characters
of
each line are displayed. The part
of
the
lines
not
displayed
is
stored
in
the extended
display and can
be
moved
to
the
screen by using
the
scroll keys.
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