When you connect to the instrument web page for the first time, several things can happen:
• If the security settings are high, scripting might be disabled and the browser will prompt you to
enable ActiveX and scripting.
• If Java is not installed, the browser will prompt you to install it and provide a link to the download.
If you do not have an Internet connection, you must download it elsewhere and install it on the
computer that it connected to the instrument.
• When the Java applet from the instrument gets downloaded into the browser it will ask you if you
trust this active content from Keithley Instruments. Select Yes.
If you have resolved the problems, the instrument control pages should work and if you try to perform
an action, such as closing a relay, you are prompted for the password (the default is “admin”).
If you update the firmware for the instrument using the web page (not available for all instruments),
you need to flush the browser cache so that a fresh Java Applet gets downloaded the next time you
access the web page.
LXI LAN status indicator
Most LAN network interface cards have two LEDs, one that indicates LAN traffic and one that
designates the LAN speed (10 megabits, 100 megabits, 1 gigabits) through the color of the LED. LXI
goes one level higher than this and states that all LXI compliant devices need a LAN status indicator.
This can be an LED or an indicator on a display. It shows if the instrument has a valid IP address or is
in a fault state.
When diagnosing a LAN connection issue with an LXI instrument, see if the LAN status indicator is
signaling a valid or fault condition. If there is an error, you cannot communicate with the instrument
through the LAN connection. In this case, you need to check the LAN parameter settings from the
front panel of the instrument. Make sure if you change a LAN setting through the front panel that you
select the “Apply LAN Settings” for the changes to take affect.
Initialize the LAN configuration
The LXI specification mandates that all instruments that conform to LXI need a LAN reset
mechanism. This can be a recessed switch or a menu option on the front panel that will put all the
LAN settings back to known defaults. If you cannot communicate with your instrument, perform this
reset.
If you perform a reset, the instrument is returned to DHCP and Auto-IP enabled. If you set your
computer to match, you should be able to use a discovery tool to determine the IP address and
communicate with the instrument again. Also check the LAN status indicator to verify that there are
no faults.
Use the LXI Discovery Tool
To find the IP address of the Series 3700A, use the LXI Discovery Tool, a utility that is available from
the Resources tab of the LXI Consortium website (http://www.lxistandard.org/).
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