<s>
HiSLIP	B-Architecture
(	O
High-Speed	O
LAN	B-General_Concept
Instrument	O
Protocol	O
)	O
is	O
a	O
TCP/IP	B-Protocol
-based	O
protocol	O
for	O
remote	O
instrument	B-Architecture
control	I-Architecture
of	O
LAN-based	O
test	O
and	O
measurement	O
instruments	O
.	O
</s>
<s>
Like	O
VXI-11	O
,	O
HiSLIP	B-Architecture
is	O
normally	O
used	O
via	O
a	O
library	O
that	O
implements	O
the	O
VISA	B-General_Concept
API	O
.	O
</s>
<s>
Version	O
1.4	O
of	O
the	O
LAN	B-General_Concept
eXtensions	O
for	O
Instrumentation	O
(	O
LXI	O
)	O
standard	O
recommends	O
HiSLIP	B-Architecture
as	O
“	O
LXI	O
HiSLIP	B-Architecture
Extended	O
Function	O
for	O
LXI	O
based	O
instrumentation	O
”	O
.	O
</s>
<s>
HiSLIP	B-Architecture
fixes	O
several	O
problems	O
with	O
the	O
VXI-11	O
protocol	O
(	O
which	O
synchronously	O
sends	O
GPIB	O
commands	O
via	O
SunRPC	B-Protocol
)	O
:	O
</s>
<s>
HiSLIP	B-Architecture
can	O
operate	O
in	O
two	O
different	O
modes	O
:	O
</s>
<s>
HiSLIP	B-Architecture
clients	O
(	O
VISA	B-General_Concept
libraries	O
)	O
have	O
to	O
support	O
both	O
modes	O
.	O
</s>
<s>
HiSLIP	B-Architecture
servers	O
(	O
instruments	O
)	O
need	O
to	O
support	O
at	O
least	O
one	O
of	O
them	O
,	O
but	O
can	O
also	O
support	O
both	O
.	O
</s>
<s>
A	O
HiSLIP	B-Architecture
client	O
contacts	O
a	O
server	O
by	O
opening	O
two	O
TCP	O
connections	O
,	O
both	O
to	O
port	O
4880	O
,	O
and	O
sends	O
packetized	O
messages	O
on	O
both	O
:	O
</s>
<s>
To	O
migrate	O
from	O
VXI-11	O
to	O
HiSLIP	B-Architecture
,	O
a	O
user	O
of	O
a	O
VISA	B-General_Concept
library	O
and	O
instrument	O
that	O
support	O
both	O
merely	O
has	O
to	O
change	O
the	O
VISA	B-General_Concept
resource	O
string	O
used	O
to	O
address	O
the	O
instrument	O
.	O
</s>
<s>
The	O
shortest	O
possible	O
version	O
of	O
a	O
VXI-11	O
VISA	B-General_Concept
resource	O
string	O
is	O
"TCPIP::xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx1[,port#]::INSTR"	O
.	O
</s>
<s>
To	O
use	O
the	O
HiSLIP	B-Architecture
communication	O
channel	O
,	O
such	O
a	O
VISA	B-General_Concept
resource	O
string	O
needs	O
to	O
be	O
changed	O
to	O
:	O
"	O
TCPIP::xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx1::hislip0::INSTR	O
"	O
.	O
</s>
<s>
If	O
the	O
HiSLIP	B-Architecture
server	O
is	O
using	O
a	O
port	O
other	O
than	O
the	O
default	O
of	O
4880	O
,	O
then	O
it	O
must	O
be	O
specified	O
in	O
the	O
resource	O
string	O
as	O
:	O
"	O
TCPIP::IP	O
address|hostname>::hislip0[,port#]::INSTR	O
 "	O
.	O
</s>
