Rohde & Schwarz 1307.9002K03, Quick Start Manual

Page: 178 / 199

Controlling the R&S FSVA/FSV Remotely
R&S
®
FSVA/FSV
163 Quick Start Guide 1321.3066.02 ─ 06
–
inst0
selects the VXI-11 protocol (default)
–
hislip0
selects the newer HiSLIP protocol
●
INSTR indicates the instrument resource class (optional)
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
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.
● VXI-11 Protocol ............................................................................................. 163
● HiSLIP Protocol .............................................................................................163
8.4.1.1 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 protocol, messages cannot be lost.
8.4.1.2 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:
●
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