Instrument Control
R&S
®
SGS100A
42
Getting Started 1416.0570.02 ─ 11
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
●
[::LAN device name]
defines the protocol and the instance number of a sub-
instrument:
●
[::INSTR]
indicates the instrument resource class (optional)
The
IP address
(host address/computer name) is used by the programs to iden-
tify 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.
See below the characteristics of the VISA resource strings for the corresponding
interface protocols. The highlighted characters are crucial.
HiSLIP
TCPIP::host address::hislip0[::INSTR]
●
hislip0
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 details of the HiSLIP protocol, refer to
VXI-11
TCPIP::host address[::inst0][::INSTR]
●
[::inst0]
LAN device name, indicates that the VXI-11 protocol is used
(optional).
inst0
currently selects the VXI-11 protocol by default and can be omitted.
Network and Remote Control Operation
