R&S ZNL, User Manual

Page: 149 / 1135

Network and remote settings
R&S
®
ZNL/ZNLE
149 User Manual 1178.5966.02 ─ 19
–
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 DNS host name is ZNL3-123456 ; the valid resource string using HiSLIP is:
TCPIP::ZNL3-123456::hislip0
●
A raw socket connection can be established using:
TCPIP::192.1.2.3::5025::SOCKET
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
the resource string.
For details on configuring the LAN connection, see Chapter 8.5.1, "How to configure a
network" , on page 164.
● VXI-11 protocol ......................................................................................................149
● HiSLIP protocol ..................................................................................................... 149
● Socket communication ..........................................................................................150
● LAN web browser interface ...................................................................................150
8.1.1.1 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.
8.1.1.2 HiSLIP protocol
The High Speed LAN Instrument Protocol (HiSLIP) 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:
●
High performance as with raw socket network connections
●
Compatible IEEE 488.2 support for Message Exchange Protocol, Device Clear,
Serial Poll, Remote/Local, Trigger, and Service Request
Remote control interfaces and protocols