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NOTE
O
A single block
must
be allocated
to
M90
or
M91P. If
a
motion command is in the same
block.
ALM112 "M90/M91
FORMAT ERROR" occurs.
Interrupt
signal while interrupt program
is executed
If
an interrupt signal
is
input
in the M91
Mode,
it is disregarded while
the
interrupt program
is
being executed.
ALM114
"M90/M9I
COMMAND ERROR"
Neither M90 nor M91
can
be used
in
a program
started
by programmed interrupt.
If the
command
is
used,
ALM114 "M90/M91
COMMAND
ERROR"
occurs.
Macro local
variable level
M91
can be used
in
a sub-program
or macro
program.
An interrupt
program
is
not
counted for the
program nesting level,
therefore it does
not
vary
the
macro
local variable level.
Specifying
destination
The M99 command in
an
interrupting
program
returns to
the block
next
to
the inter¬
rupted
block. To
specify returning
to
other
block, use
M99P.
When returning
to
the first
program by
M99, the modal infomation
before
interrupt is
restored.
When returning
to
the first
program
by
M99P.
the modal
information
updated in
the
interrupting
program
is retained.
When
interrupt input occurs during
block
stop
If interrupt signal is input during block
stop,
interrupting
program
is started when
operation is restarted by cycle
start.
Programmed interrupt input during high-speed cutting
Programmed interrupt is disregarded
during
high-speed cutting.
Specifying interrupting program
start sequence
number
Use command Q in
a
M91P block
to
specify the
sequence
number
at
which the
interrupt¬
ing
program
is
to
1» started.
Modal
information
at
interrupt
Modal
information is retained
even
if
a programmed interrupt
occurs and the interrupt¬
ing
program
is started. When
the interrupting
program
is
stopped
and the first
program
is restarted by
M99,
the modal information
at
the time of interrupt is restored.
The
current
coordinate
system
of the first
program
is
not
restored.
When
the interrupting
program
is
stopped
and the first
program
is restarted
by M99P,the
modal information
in the interrupting program is retained.
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