Lan Interface; Visa Resource Strings - R&S SGT100A User Manual

®
R&S SGT100A
Protocol
Socket
PCIe

10.1.2 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 RJ45 cable (shielded or unshielded twisted-pair category 5). The TCP/IP net-
work protocol and the associated network services are preconfigured on the instru-
ment. Software for instrument control and (for specified protocols only) the VISA pro-
gram library must be installed on the controller.
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.
10.1.2.1

VISA Resource Strings

The VISA resource string is required to establish a communication session between
the controller and the instrument in a LAN. The resource string is a unique identifier,
composed of the specific IP address of the instrument and some network and VISA-
specific keywords.
TCPIP::host address[::LAN device name][::INSTR]
●
TCPIP designates the network protocol used
●
host address is the IP address or host name of the device
See also
on page 65.
●
[::LAN device name] defines the protocol and the instance number of a subinstru-
ment:
●
[::INSTR] indicates the instrument resource class (optional)
The IP address (host address/computer name) is used by the programs to identify and
control the instrument. It is automatically assigned by the DHCP server the first time
the device is registered on the network. Alternatively, you can also assign its LAN
device name.
You can find the IP address in the "SGMA-GUI > Instrument Name > Setup > Remote"
dialog, and also adjust it manually, if necessary.
User Manual 1176.8674.02 ─ 07
Remote control program
rssgt_init ("TCPIP:rssgt100a100010::5025::SOCKET", ...)
rssgt_SetFrequency (..., 2e9)
rssgt_init ("PCIe::0x162f::0x1336::1000010::INSTR", ...)
rssgt_SetFrequency (..., 2e9)
Chapter 6.5.3, "Finding Out the Default Hostname of the
Network and Remote Control Operation
Remote Control Interfaces and Protocols
Instrument",
280