YASKAWA yasnac i80m

MACRO
I
LEVEL
3)
MAIN
PROGRAM
MACRO
i
LEVEL
2
1
MACRO
(LEVEL
4)
MACRO
(
LEVEL
1
1
CALL
Gijfi
I’***
GO
5
I’***
GOG
I1***
Gl-G
1’***
M
:?
t
>
Mon
MUH
M'.f.i
MOO
RETURN
CAN
BE
READ
OR
WRITTEN
l
*
I
tt
1
tt
1
#
I
it
I
i
i
i
i
i
it
3
it
S3
it
3
3
it
A
it
S3
LOCAL
VARIABLE
I
LEVEL
2
1
LOCAL
VARIABLE
(LEVEL
3
1
LOCAL
VARIABLE
(LEVEL
(II
LOCAL
VARIABLE
l
LEVEL
1
1
LOCAL
VARIABLE
(LEVEL
41
Local
variable
of
level
0
is
secured
for
the main
program;
local
variables(levels
1
to
4)
corresponding
to
the called
macro
level
are
secured
for
others.
When
a macro
is called
by
G65.
for
example,
the local
variable
of
the level
of
the
calling
side
is
saved,
and
a
local
variable
of
the
level
of
the
newly
called side is
secured.
In
this
case,
argument
can
be
passed
to
the
macro.
Consequently,
even
for
the
same
macro,
if
the
called
timing
is
different,
the local variable
of
that
macro
level
has
different
values.
When
a
macro
returns
to
one
level lower
than that
by
instruction
of
M99.
the
local
variable
of
that
macro
level is cleared
to
(blank).
The
local variable
of
the
returned
macro
level becomes the
local
variable
that
was
saved
when
called.
MDI
write
of
local
variable
:
Do
not
write
in
the
local
variable
by
MDI
during
macro
program
execution
Interrupt
the
operation
by single-block,
stop
and
make
sure
that
variable
can
be rewritten.
Local
variables
can
be
used
in
a
subprogram,
too.
In
this
case,
the
local variables that
can
be used
are
those
of
the
current
macro
level.
However,
when
a
subprogram
is
called,
argument
cannot
be
specified.
When
a
subprogram
returns
by
instruction
of
M99,
the
local
variable
of
the
current
macro
level is
not
(blank)
either.
1
2
3
4
5
Fig.
2.14.4
Local Variable
-
255
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