Keithley 3700 Series User Manual

Series 3700A System Switch/Multimeter Reference Manual Appendix A: LAN concepts and settings
3700AS-901-01 Rev. D/June 2018 A-15
VXI-11 connection
This remote interface is similar to GPIB and supports message boundaries, serial poll, and service
requests (SRQs). A VXI-11 driver or NI-VISA
TM
software is required. Test Script Builder (TSB) uses
NI-VISA and can be used with the VXI-11 interface. You can expect a slower connection with this
protocol.
Raw socket connection
All Keithley instruments that have LAN connections support raw socket communication. This means
that you can connect to the TCP/IP port on the instrument and send and receive commands. A
programmer can easily communicate with the instrument using the Winsock API on computers with
the Microsoft
®
Windows
®
operating system or using the Berkeley Sockets API on Linux
®
or Apple
®
computers.
Dead socket connection
The dead socket termination (DST) port is used to terminate all existing ethernet connections. A dead
socket is a socket that is held open by the instrument because it has not been properly closed. This
most often happens when the host computer is turned off or restarted without first closing the socket.
This port cannot be used for command and control functions.
Use the dead socket termination port to manually disconnect a dead session on any open socket. All
existing ethernet connections will be terminated and closed when the connection to the dead socket
termination port is closed.
Telnet connection
The Telnet protocol is similar to raw socket, and can be used when you need to interact directly with
the instrument. Telnet is often used for debugging and troubleshooting. You will need a separate
Telnet program to use this protocol.
The Series 3700A supports the Telnet protocol, which you can use over a TCP/IP connection to send
commands to the instrument. You can use a Telnet connection to interact with scripts or send
real-time commands.
Configuring a Telnet connection
This procedure uses HyperTerminal
TM
, which is available with the Microsoft
®
Windows
®
XP operating
system. Consult the help system for your version of Microsoft Windows to identify a compatible tool.
To connect with the Series 3700A using HyperTerminal on a Windows XP system:
1. On the host computer, click Start > Accessories > Communications > HyperTerminal. The
Connection Description dialog box opens.

Keithley 3700 Series Specifications

General

Brand	Keithley
Model	3700 Series
Category	Multimeter
Language	English