<s>
HostLink	O
is	O
communication	O
protocol	O
for	O
use	O
with	O
or	O
between	O
PLC	B-Architecture
's	O
made	O
by	O
Omron	O
.	O
</s>
<s>
It	O
is	O
an	O
ASCII-based	O
protocol	O
generally	O
used	O
for	O
communication	O
over	O
RS-232	O
or	O
RS-422	O
.	O
</s>
<s>
Larger	O
messages	O
can	O
be	O
sent	O
by	O
'	O
fragmentation	B-Protocol
 '	O
process	O
,	O
where	O
the	O
same	O
slave	O
returns	O
a	O
series	O
of	O
messages	O
to	O
build	O
up	O
the	O
entire	O
response	O
.	O
</s>
<s>
PLC	B-Architecture
host	O
computers	O
can	O
transfer	O
procedures	O
,	O
and	O
monitor	O
PLC	B-Architecture
data	O
area	O
,	O
and	O
control	O
the	O
PLC	B-Architecture
using	O
the	O
HostLink	B-Application
protocol	I-Application
.	O
</s>
