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available or, if DHCP times out (30 seconds), via Auto-IP. In the very unlikely event that an Auto-
IP address cannot be found a static IP address of 192.168.0.100 is assigned. Resetting the LAN
removes any password protection.
For more information on LXI standards refer to www.lxistandard.org/home .
LAN Connection
To use the LAN interface, the IP address of the unit must be known. . On the supplied CD-ROM
is a guide to the LXI Discovery Tool which provides links to the latest version of the tool and
associated downloads. The tool is a Windows PC application which can be used to display the IP
addresses or host names of all connected devices that comply with the VXI-11 protocol or
support multicast Domain Name System (mDNS) records. Connecting via a router is
recommended as this is significantly quicker to assign an IP address; connecting directly to the
PC will begin to assign an IP address only after a 30 second DHCP timeout. Double clicking on
any entry in the list of devices discovered will open the PC's web browser and display the Home
page of that device.
There are also tools for LAN discovery included as part of the National Instruments Measurement
and Automation Explorer package and the Agilent Vee application.
The unit will, when first powered up, attempt to obtain settings via DHCP if available or, if DHCP
times out (30 seconds), via Auto-IP. In the very unlikely event that an Auto-IP address cannot be
found a static IP address of 192.168.0.100 is assigned
LAN Status Indication
The LAN Status is displayed in the top left hand corner of the display during normal operation. It
is not shown on all menus. There are 4 possible indications:
No LAN
If the unit cannot detect any connection to a LAN e.g. the cable is unplugged
then the LAN status indicator is
.
Configuring
The unit has detected a LAN connection but is not yet configured, e.g. is waiting
for DHCP. The LAN status indicator is animated flashing between
and
LAN OK
The LAN connection is now configured and the unit can communicate. The
display becomes
LAN FAULT
The unit has detected a problem with LAN connection, e.g. Its IP address is in
use by another device. Communication is not possible and the display shows
LAN Identify
The instrument's main web page has an 'Identify' function which allows the user to send an
identifying command to the instrument which causes its display to flash until the command is
cancelled.
Web Server; Configuration Password Protection
The unit contains a basic web server. This provides information on the instrument and allows it
to be configured. The Configure page can be password protected to deter unauthorised changes
to the remote operation configuration; the default configuration is ‘no password’.
The Configure page itself explains how to set the password. The password can be up to 15
characters long; note that the
User Name should be left blank
. The password will, however, be
reset to the default (no password) if the rear panel LAN RESET switch is used to reset all the
LAN parameters to their factory default.
The web pages also have an ‘Identify’ function which allows the user to send an identifying
command to the instrument which causes its display to flash until the command is cancelled.
