Buffer Register And Multi-Active Register - YASKAWA yasnac i80m Instruction Manual

2.2
PROGRAMMING
(Cont'd)
Buffer Register and Multi-active Register
2.2.3
•
Buffer register
(1)
During normal operation,
two
blocks of data
are
read in advance and
offset
computing
is made for the follow-on
operation.
(2) In the tool radius
compensation C-ÿmode,
two
blocks of data
or up
to
4
blocks of data
are
read in advance and compensation computing
required for the
next
operation is executed.
(3) One block
can
contain
up to
128 characters including EOB.
•
Multi-active
Registerÿ
(1) For the portion of
part
programs
sandwiched between M93 and M92,
up to
7 blocks of data are read in advance.
Table 2.2.9
Meaning M code
Multi-active register
OFF
M92
Multi-active register ON
M93
(2) Inter-block
stoppage
can
be eliminated when the
program
is
so made
that the automatic operation time of advance reading of 7 blocks is
longer than processing time of advance
reading
of-
next
7 blocks of
data.
Advance
reading is
not
made for
every 7
blocks but is
always ready
to
be made
up to
7 blocks in M93
mode.
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