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Remote Control

R&S

RTO

390User Manual 1316.0827.02 ─ 06

The I/O channel (LAN or TCP/IP, USB, GPIB,...) is selected at initialization time by means

of the channel–specific address string ("VISA resource string") indicated in table 16-1, or

by an appropriately defined VISA alias (short name). A VISA installation is a prerequisite

for remote control of R&S RTO.

For more information about VISA refer to the VISA user documentation.

16.1.1.2 LAN Interface

To be integrated in a LAN, the instrument is equipped with a LAN interface, consisting of

a connector, a network interface card and protocols. For remote control via a network,

the PC and the instrument must be connected via the LAN interface to a common network

with TCP/IP network protocol. They are connected using a commercial RJ45 cable.The

TCP/IP network protocol and the associated network services are preconfigured on the

instrument. Software for instrument control and the VISA program library for specified

protocols must be installed on the controller.

IP address

Only the IP address of the instrument is required to set up the connection. It is part of the

"VISA resource string" used by programs to identify and control the instrument. The VISA

resource string has the form:

TCPIP::<IP address>[::inst0]::INSTR

where:

●

IP address identifies the instrument in the network

●

inst0 is the LAN device name. VISA supports several devices running on the instru-

ment. On R&S RTO, only one device is configured, so the LAN device name can be

omitted.

●

INSTR indicates that the VXI-11 protocol is used

Example: If the instrument has the IP address 192.1.2.3, the valid resource string is:

TCPIP::192.1.2.3::INSTR

If the LAN is supported by a DNS server, the host name can be used instead of the IP

address. The DNS server (Domain Name System server) translates the host name to the

IP address. The VISA resource string has the form:

TCPIP::<host name>[::inst0]::INSTR

Example: If the computer name is RSRT1, the valid resource string is:

TCPIP::RSRT1::INSTR.