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4023
Users
OPERATION
Protected
fields
are
data
fields
that
cannot
be
changed by normal
keyboard
entry.
These
fields
will
contain
form
heading
information,
and
other information,
that
the
program
sets as
normally unchangeable
from
the
keyboard.
Protecting
a
field
prevents accidentally typing
into that
field.
When
the cursor
is
in
a
protected
field,
the
KEYBOARD
LOCK
indicator
is
lighted.
As
additional
warning,
pressing
a
key
when
the cursor
is
in
a
protected
field
causes the
bell
to
ring.
Protected
Fields
NOTE
In isolated
cases,
it
may
be
necessary
to
enter data
into a
protected
field.
Your programmer
will
tell
you when
such an entry
is
to
be made.
This
can
be done
by
pressing
the
RESET
key
simultaneously with
the desired
keyboard
character.
Unprotected
fields
are
normally the
fields
in
which you
will
be entering
and
changing
data.
Data
in
unprotected
fields
can
be changed.
Any
unprotected
field
can be
partially
or
completely
erased
(depending
on
cursor
position
in
the
field)
by
pressing
the
ERASE TO END
key.
Data
in
the
unprotected
fields
can be erased
by
pressing
the
PAGE-ERASE
INPUT
key.
The
Erase
Input function
is
used to
leave a
"blank
form"
for
further
entries
that use the
same
heading
information.
Unprotected
Fields
Some
formatted
displays
may
contain
non
alpha
fields.
Only
the
following characters can
be entered
into a
non
alpha
field:
SPACE
!
"
#
$
%
&'()
*+,-./0123456789:;<
=
>?.
Attempting
to enter
an alpha
character
into a
non
alpha
field will
cause the
bell
to
ring. In
isolated cases
it
may
be necessary
to enter
a
character
into
a
non
alpha
field.
In this case,
simultaneously
press
the
RESET
key with
the character
desired.
Non
Alpha
Fields
Field identification
is
accomplished
by
a
variety of display
backgrounds.
For example,
protected data can be displayed
"dim",
while unprotected data
can be displayed
at
normal
intensity.
If
the
program
requires
the operator's
attention to
a specific field,
that
field
can be
made
to
blink.
Other
types
of
display
backgrounds
are available
to the
programmer.
Fig.
1-16
is
an
example
of the variety of displays
available.
When
working
with formatted
displays,
you
will
be
told
what
type
of
background
identifies specific
fields.
Field Identification
®
1-27
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