BNC 835-3 Programmer Manual - Manual (Page 5)

that is not connected to other LANs requires a default gateway setting of 0.0.0.0. If you have a
gateway, then the default gateway would be set to the appropriate value of your gateway.
• MAC Address: A MAC address is a unique 48-bit value that identifies a network interface card
to the rest of the network. Every network card has a unique MAC address permanently stored
into its memory.
Interface between the signal generator and other devices on the network is via a category five
(CAT-5) interface cable connected to a network. This cable uses four twisted pairs of copper
insulators terminated into an RJ45 connector. CAT-5 cabling is capable of supporting
frequencies up to 100 MHz and data transfer speeds up to 1 Gbps, which accommodates
1000Base-T, 100Base-T, and 10Base-T networks.
The instrument can be remotely programmed using the VXI-11 protocol. A VISA I/O library
(like NI-VISA™) is used on the server side to facilitate the communications. A VISA installation
on the controller is a prerequisite for remote control over LAN interface. VISA is a standardized
software interface library providing input and output functions to communicate with
instruments. For more information about VISA refer to the VISA library supplier’s
documentation.
The SCPI command set listed in the BNC MODEL 835-3 programmer’s manual applies to LAN
programming as well.
Only the IP address or the device name is required for link setup. The IP address/device name
is part of the "visa resource string" used by the programs for identification and control of the
instrument. The visa resource string has the form:
TCPIP::ipaddr::inst0::INSTR
ipaddr has to be replaced by the IP address or the computer name of the instrument.
For instance, if the instrument has the IP address 192.168.1.50,
TCPIP::192.168.1.50::inst0::INSTR is the valid resource name. Specification of inst0 in the
resource name is optional. In this example, also
TCPIP::192.168.1.50::INSTR is therefore a valid resource name.
.
TCPIP designates the network protocol used and INSTR indicates that the VXI-11 protocol is
used. If several instruments are connected to the network, each instrument has its own IP
address and associated resource name. The controller identifies these instruments by means of
the resource name.