R&S NRX Series, User Manual

Page: 451 / 514

Remote Control Basics
R&S
®
NRX
451 User Manual 1178.5566.02 ─ 07
Setup
► Using the Ethernet interface, connect the computer and the R&S NRX to a local
area network.
14.1.2.1 VISA Resource Strings
The VISA resource string for network device communication is required to establish a
communication session between the controller and the power sensor in a LAN. The
resource string is a unique identifier, composed of the specific IP address of the sensor
and some network and VISA-specific keywords.
TCPIP::<IP address or hostname>[::<LAN device name>][::INSTR]
●
TCPIP designates the network protocol used
●
<IP address or hostname> is the IP address or hostname of the device
●
[::<LAN device name>] defines the protocol and the instance number of a subin-
strument:
●
[::INSTR] indicates the power sensors resource class (optional)
The IP address or hostname is used by the programs to identify and control the sensor.
While the hostname is determined by settings in the sensor, the IP address is assigned
by a DHCP server when the sensor requests one. Alternatively the IP address is deter-
mined with a procedure called Zeroconf.
You can also assign a LAN device name which defines the protocol characteristics of
the connection. See the description of the VISA resource string below for the corre-
sponding interface protocols. The string of the
LAN device name is emphasized in ital-
ics.
VXI-11
TCPIP::<IP address or hostname> [::inst0] [::INSTR]
●
inst0 is the LAN device name, indicating that the VXI-11 protocol is used (optional)
inst0 currently selects the VXI-11 protocol by default and can be omitted.
For further details, see Chapter 14.1.2.2, "VXI-11 Protocol" , on page 452.
HiSLIP
TCPIP::<IP address or hostname> ::hislip0 [::INSTR]
●
hislip0 is the HiSLIP device name, designates that the interface protocol HiSLIP is
used (mandatory)
hislip0 is composed of [::HiSLIP device name[,HiSLIP port]] and must be assigned.
For further details, see Chapter 14.1.2.3, "HiSLIP Protocol" , on page 452.
Socket communication
TCPIP::<IP address or hostname> ::port::SOCKET
●
port determines the used port number
Remote Control Interfaces and Protocols
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