Remote Control
R&S
®
ESR
557
User Manual 1175.7068.02 ─ 12
●
TCPIP
designates the network protocol used
●
host address
is the IP address or host name of the device
●
LAN device name
defines the protocol and the instance number of a sub-instru-
ment;
–
inst0
selects the VXI-11 protocol (default)
–
hislip0
selects the newer HiSLIP protocol
●
INSTR
indicates the instrument resource class (optional)
●
port
determines the used port number
●
SOCKET
indicates the raw network socket resource class
Example:
●
Instrument has the IP address
192.1.2.3
; the valid resource string using VXI-11
protocol is:
TCPIP::192.1.2.3::INSTR
●
The instrument name is
RSFSV
; the valid resource string is:
TCPIP::RSFSV::INSTR
●
A raw socket connection can be established using:
TCPIP::192.1.2.3::5025::SOCKET
●
The DNS host name name is
FSV-123456
; the valid resource string using HiSLIP
is:
TCPIP::FSV-123456::hislip0
Identifying instruments in a network
If several instruments are connected to the network, each instrument has its own IP
address and associated resource string. The controller identifies these instruments by
means of the resource string.
For details on configuring the LAN connection, see
Chapter 11.2.6, "Setting Up a Net-
VXI-11 Protocol
The VXI-11 standard is based on the ONC RPC (Open Network Computing Remote
Procedure Call) protocol which in turn relies on TCP/IP as the network/transport layer.
The TCP/IP network protocol and the associated network services are preconfigured.
TCP/IP ensures connection-oriented communication, where the order of the
exchanged messages is adhered to and interrupted links are identified. With this proto-
col, messages cannot be lost.
HiSLIP Protocol
The HiSLIP (
Hi
gh
S
peed
L
AN
I
nstrument
P
rotocol) is the successor protocol for
VXI-11 for TCP-based instruments specified by the IVI foundation. The protocol uses
two TCP sockets for a single connection - one for fast data transfer, the other for non-
sequential control commands (e.g.
Device Clear
or
SRQ
).
HiSLIP has the following characteristics:
Remote Control - Basics
