YASKAWA yasnac i80m

2.13
PROGRAM SUPPORT FUNCTIONS
(Cont’d)
(5)
Special
use
of
M99
D
|M99P
With
this
command,
when
the
subprogram
is
terminated,
control
returns
to
the
block
of
the
sequence
No:
specified
by
P
without
returning
to
the
block
next
to
the
main
program.
NOTE
1.
If
the
program
No.
specified
by
address
P
cannot
be
found,
alarm
“390"
results.
2.
This
function
can
only
be used
when
the
subprogram
is stored
in
part
program
memory.
The
main
program
can
be
commanded
from
NC
tape
or
part
program
memory.
3.
If
the
subprogram
multiplicity
exceeds
a
quadruple
nest,
an
error
results.
4.
If
I
M99
;
1
is
commanded
for
the
main
program,
control
returns
to
the
beginning
of
the
main
program
and
the
system
operates
in
an
endless
cycle.
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