Network operation and remote control
R&S
®
SMB100B
271User Manual 1178.3711.02 ─ 08
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.
Example:
TCPIP::192.1.2.3::INSTR
Socket communication
TCPIP::<host address>::<port>::SOCKET
port
= determines the used port number
SOCKET = indicates the raw network socket resource class
Socket communication requires the specification of the port (commonly referred to as
port number) and of "SOCKET" to complete the resource string.
Basically, instruments from Rohde & Schwarz use port number 5025 for socket com-
munication.
Example:
TCPIP::192.1.2.3::5025::SOCKET
11.2.2 USB interface
For remote control using USB, the controller PC and the instrument must be connected
over the USB type B interface. Software for instrument control and the VISA program
library must be installed on the controller.
The serial interface "RS232" enables you to connect the instrument over serial inter-
face. You can connect to the interface by using the external USB/serial-adapter
R&S TS1-USB (see recommended extras in the data sheet) and a serial crossover
(null modem) cable.
VISA detects and configures the Rohde & Schwarz instrument automatically when the
USB connection is established. You do not have to install a separate driver.
USBTMC (USB Test & Measurement Class Specification) is a protocol that is built on
top of USB for communication with USB devices. It defines class code information of
the instrument, that identifies its functionality to load the respective device driver. Using
VISA library, the protocol supports service request, trigger, and other specific opera-
tions.
Remote control interfaces and protocols
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