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Rules:
1.
A
column
to
be
auto-skipped
must
have an 11-punch;
auto
skip
should not be used
if
original
number
used
spaces to
calculate
the
check
digit.
2.
Single
column
skip
must
not
be
programmed
in
the
high-
or
low-order
columns of
the
field.
3.
The
maximum
field
length
is
79 columns
(01-79 or
02-80).
4.
Fields
may
be
adjacent.
The
self-check
card
indicator
is
defined
as
an
1
1
-punch
(-)
in
card
column
81, or
an absence of
this
punch.
The
requirements
to
obtain the
1 1
-punch
in
column
81
are:
1
There
must
be
at least
one
correct self-check
field
in
the
card.
2.
There
must
be
no
error self-check
fields in
the card; for
example,
fields
overpunched with
either
a
12-
or
11-punch
in
the
units position
of the
self-check
field
after
having used procedure B.
Note: Blank
fields are
not considered
as
error
fields
for
the
11-punch
in
the
column
81 requirement,
in
punch mode.
(In auto-verify
self
check,
an
all-blank
field results in
an
SC
error.
See "Verify"
in
Section
3.)
Self-check Limitations
The
following
limitations
apply
to
both modulus 10 and
modulus
11,
unless
otherwise
indicated:
1
Left-based
numbers
cannot be
used.
2.
Self-checking generate
is
not
available.
3.
Self-checking
punch
elimination
is
not
available.
4.
BLANK
COLUMNS/LEFT ZERO CTRL
is
inoperable
in
self-check
fields in
punch mode;
left-zero
control
must
not be
programmed
in
an
SC
field
in verify.
5.
A
self-check
field
must
not be
programmed
for
accumu-
late,
or
for verify
read
control.
6.
CHAR
BKSP
and
WORD
BKSP
are
inoperable
in
the
first
manual column
following a
self-check
field.
7.
Word
backspace within an
SC
field
becomes
a
field
backspace.
Self
Check—
Restricted
Operations
The
following
are
operator
actions
which
are
considered
invalid in a
self-check
field,
and
result
in
keyboard
lockup.
The
recovery procedure
for
these
lockup
conditions
is
a
field
or record
backspace
operation.
The
restricted
opera-
tions
are:
1
Pressing
REL
within a
self-check
field,
in
any
position
other than the high-order
position.
2.
Pressing
BLANK
COLUMNS/LEFT ZERO CTRL
bar
within
a self-check
field
in
any
position other
than
the
high-order
position. (In
the high-order position
of any
field,
the
LZ
bar
is
inoperable.)
3.
Pressing the
dash (-)
key
within an
SC
field in
any
position other
than
the high-order position
Note:
One
exception
is
units position
only
after a reset
of
an
SC
error
using
VER
SC
reset
key. (See procedure
B.)
4.
Pressing
SKIP
within
an
SC
field
in
any
position
other
than
the high-order
position.
5.
Pressing
VER/DUP
or
DUP
within an
SC
field in
any
position
other
than
the high-order
position,
or the
first
manual
position
of
a partial
auto
dup
SC
field.
6.
Pressing
PROG
SEL
within
an
SC
field in
any
position
other
than
the high-order
position.
7.
The
pressing
of other
than
the
11
or
12 key
in
procedure
B
(punch
mode)
or
procedure
4
(verify
mode)
in this
section.
SC/VER
indicator Light
in
Self-check Verify
Operations
To
avoid
ambiguity
in
the use
of
the
same
red indicator
light in
verify
mode
and
in
self-check
mode,
the following
conditions
should
be
considered
where
the
self-check
option
is
in use:
1.
Self-check
fields
ordinarily
do
not
require
verification.
Thus,
if
the self-check
option
is
in
use
in
punching, the
self-check
field
may
be
programmed
for
automatic
skip
without
self-check in the verify
procedure. (This does
not preclude
verification;
if
desired,
any
field
may
be
verified.)
2.
Self-check cards
with
no
11-punch
in
column
81
intro-
duce
possible
ambiguity
in
verify
mode. The
error
light
may
turn
on
because
of
verify
error,
or
possible
self-check error
(if
column
is
in a
self-check
field).
If
the
light
turns
on
in
any
column
except the
units
position
of
a self-check
field,
(as
during
manual
verification),
it
is
a
verify
error. If
the
light
turns
on
in
the units position
of
a self-check
field
(verify
mode),
it is
a
self-check
error,
signifying that
the
check
digit in
the card
(and input
storage)
does not
agree
with
the
check
digit
calculated
by
the
machine.
3.
An
alternate
procedure
is
possible:
program
the
verify
mode
to
automatically
skip
and
self-check
the
self-check
field(s).
Note
that there
is
no
loss in verification as in
condition
1.
Under
these conditions, the error
light
means
a self-check
error,
since
the
self-check calculation
is
automatically
performed.
4. If
it
is
necessary to include
known
incorrectly
coded
self-check
digits
in
any
record,
then
the operator
must
be aware
that the error
light,
under
these conditions,
may
represent
either a self-check error
or a
verify
error.
In
any
position
of
a
field
other
than
the units position
of
a self-check
field,
the
error
light
designates a verify
error.
In the
units position
of
a self-check
field,
it
always
designates a self-check
error.
Special
Features
53
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