YASKAWA yasnac i80m

2.14.5
Undefined
Variables
Variables
which
are
not
yet
defined
are
called
undefined
variables.
The
variable
values
of
undefined
variables
are
(blank)
.
The
following
falls
under the
category
of
undefined
variables:
(1)
Local
variables
and
common
variables
(#100—
#299)
when
the
equipment
has
power
on
or
reset.
(2)
Local
variables
for
which
no
arguments
are
specified
when
a
macroprogram
is
called.
(3)
Local variables
corresponding
to
the
level
of
a
macroprogram
when
the
macroprogram
returns
by
instruction
of
M99.
(4)
Local
variables
and
common
variables
in
which
no
values
have
been
stored
in
a
macroprogram.
(5)
Common
variables
in
which
no
values
have been
written
by
MDI.
Variable
#0
is
used
a
variable
(undefined
variable)
whose
variable
value is
always
(blank).
Variable
#0
cannot
be
instructed
on
the
left
side
of
an
operation
formula.
I
Meaning
of
(blank).
(J)
When
an
underfined
variable
is
quoted,
the
address
itself
is
also
disregarded.
G00X
#
2
:
is
equivalent
to
GOU
;
.
#2=
blank--
#2=0
G00X
#
2
:
is
equivalent
to
GOO
X
0
;
.
<2>
When
used
in
an
operation
formula,
undefined
variables
are
handled
as
variable
value
0
except
when
they
are
replaced
with
'.'blank:-.
•
For
#2=
.blank-
#3=#2:
#3=
.blank-'
#3=#
[#
2
+
#
2]
#3=#0=
‘blank-
#3=#
I
*#2;
#3=#2+#2;
#3
=
0
#3=#2/#2;
#3=5
*#
2
;
#3
=
2-#
2
;
#3=2
#3=5/#
2
Division
error
@
If
used
in
a
conditional
expression,
undefined
variables
are
handled
as
variable
value
0
except
•
For
#3=0
and
#2=
<biank.-
for
EQ
and
NE.
#
3EQ
#
2
is
not
satisfied.
#
3NE
#2
is
satisfied.
#3GE
#
3LT
#
2
is
not
satisfied.
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