Agilent Technologies 1660C Series User manual

LAN User’s Guide
Publication number 01660-97025
March 2000
For Safety information, Warranties an Regulatory information, see the pages
behin the in ex
 Copyright Agilent Technologies 1993-2000
All Rights Reserve
Agilent Technologies
1660C/CS-Series and
1670A-Series Logic Analy ers

Introducing the LAN Interface
The Logic Analyzer LAN interface lets you connect your logic analyzer to an
Ethernet network that uses TCP/IP. With the LAN Interface, you can:
•Set up an run measurements using the logic analyzer’s X Win ow
interface.
•Copy measurement ata from the logic analyzer to your computer using
File Transfer Protocol program (ftp) or Network File System (NFS).
•Save an restore configurations.
•Program the logic analyzer.
Requirements
In or er to use your Agilent Technologies logic analyzer on the LAN, you
nee the following equipment an software:
•Agilent Technologies 1660C/CS-series logic analyzer with LAN option or
Agilent Technologies 1670A-series logic analyzer.
•Ethernet local area network using TCP/IP protocol.
•If you are using a PC, NFS program or ftp program.
•If you want to use the logic analyzer’s X Win ow interface, X server
program running on your computer.
Characteristics
Physical Connection
RJ-45 connector for irect connection to 10Base-T ("ethertwist")
networks
BNC connector for irect connection to 10Base2 ("thinlan") networks
Supported Protocols
Transmission Control Protocol/Internet Protocol (TCP/IP)
Network File System (NFS)
File Transfer Protocol (ftp)
X Win ow System Version 11, release 5 (X11R5)
Simple Network Management Protocol (SNMP)
ii

In This Book
This book shows you how to connect,
use, an troubleshoot your Agilent
Technologies logic analyzer via a Local
Area Network (LAN) connection. This
book contains the following chapters:
•Chapter 1 provi es information about
connecting the logic analyzer to the
network. To effectively use this
chapter, you shoul be familiar with
your network setup an operation.
•Chapter 2 shows you how to access
the logic analyzer’s file system. This is
a prerequisite for some of the other
things you can o with a logic analyzer
on the network.
•Chapter 3 shows you how to isplay
the analyzer interface on an X Win ow
server, an escribes the basics of
using the interface.
•Chapter 4 shows you how to retrieve
measurement ata, screen images, an
status information from your logic
analyzer on the LAN, an how to copy
an restore configurations.
•Chapter 5 shows you metho s for
programming the logic analyzer via the
network connection.
•Chapter 6 contains a itional
information on the logic analyzer’s
irectory structure an ynamic files.
•Chapter 7 escribes what to o if you
have a problem using the logic
analyzer on your network.
Connecting and Configuring
1
Accessing the Logic Analyzer File
System
2
Using the X Window Interface
3
Retrieving and Restoring Data
4
Programming the Logic Analyzer
5
Concepts
6
Troubleshooting
7
Glossary
Index
iii

See Also The Logic Analyzer Training Kit if you are unfamiliar with the basic
operation of the logic analyzer.
The User’s Gui e for your logic analyzer for information on using the logic
analyzer to make measurements.
The Programmer’s Gui e for your logic analyzer for etaile information on
programming the analyzer. The Programmer’s Gui e can be or ere from
your Agilent Technologies Sales Office.
UNIX is a registere tra emark in the Unite States an other countries,
license exclusively through X/Open Company Limite .
MS an MS-DOS are U.S. registere tra emarks of Microsoft Corporation.
MS Win ows® an Win ows® are U.S. registere tra emarks of Microsoft
Corporation.
Postscript is a tra emark of A obe Systems Incorporate which may be
registere in certain juris ictions.
iv

Contents
1 Connecting and Configuring
To connect to your network 1–3
To configure the network a resses 1–4
To verify connectivity with the ping utility 1–7
To mount the logic analyzer 1–8
2 Accessing the Logic Analyzer File System
To mount the file system via NFS 2–3
To access the file system via ftp 2–8
3 sing the X Window Interface
To start the interface 3–3
To close the interface 3–8
To loa the custom fonts 3–10
A itional Information 3–12
4 Retrieving and Restoring Data
To copy ASCII measurement ata 4–3
To copy raw measurement ata 4–5
To restore raw measurement ata 4–6
To strip LIF structure from raw measurement ata 4–7
To copy screen images from \system\graphics 4–9
To copy status information from \status 4–10
To copy configurations from setup.raw 4–12
To restore configurations 4–13
5 Programming the Logic Analyzer
To set up for Ethernet LAN programming 5–4
To enter comman s irectly using telnet 5–5
To copy comman s to \system\program 5–7
To write programs that open \system\program 5–9
To write programs that open the comman parser socket 5–12
1

6 Concepts
Directory structure of the logic analyzer’s file system 6–3
Dynamic files 6–6
LAN-relate fiel s in the logic analyzer’s menus 6–7
7 Troubleshooting
Troubleshooting the Initial Connection 7–3
Assess the problem 7–3
Troubleshooting in a workstation environment 7–5
Troubleshooting in an MS-DOS environment 7–8
Troubleshooting in an MS Win ows environment 7–11
Verify the logic analyzer performance 7–14
Status Number 7–16
Network Status Information 7–19
Solutions to Common Problems 7–21
If you cannot connect to the logic analyzer 7–21
If you cannot mount the logic analyzer file system 7–22
If you cannot access the file system via ftp 7–22
If you cannot start the X Win ow interface 7–23
If your X Win ow looks o 7–23
If you cannot copy files from the logic analyzer 7–23
If you cannot restore raw files 7–24
If you cannot telnet to the comman parser socket 7–24
If you get an "operation time -out" message 7–25
If the logic analyzer begins to operate slowly 7–25
If the logic analyzer oes not respon 7–25
If all else fails 7–25
Getting Service Support 7–26
Agilent Technologies on-site service 7–26
Return to Agilent Technologies service 7–26
Contents
2

1
Connecting and Configuring

Connecting and Configuring
In or er to use your logic analyzer’s network capabilities, you nee to
connect it to your network an configure the logic analyzer.
The following chart shows an overview of the process.
No
Yes
No
Yes
Connect the RJ-45 or BNC connector from
your network, then turn on the logic
analyzer.
Go to chapter 7,
"Troubleshooting."
Verify connectivity with the ping utility.
Ping OK?
Mount the logic analyzer. Mount OK?
Setup the configuration menus.
Go to chapter 7,
"Troubleshooting."
Rea y to use.
Configure
Ping
Connect
Mount
1–2

To connect to your network
1Turn off the logic analy er.
2Connect the analy er to your network using an RJ-45 or BNC
connector.
Ethertwist an thinlan are the two most common types of LAN network
connection. Ethertwist uses unshiel e twiste pair an an RJ-45 connector,
an resembles a stan ar mo ular phone line. Thinlan uses coaxial cable. If
you are unsure what your network uses for its physical connection, contact
your local network a ministrator.
The logic analyzer LAN ports are on the back panel. The RJ-45 connector
goes in the port labele "LAN-TP" an the BNC attaches to the port labele
"LAN-BNC".
3Turn on the logic analy er.
Connecting and Configuring
To connect to your network
1–3

To configure the network addresses
You can configure the logic analyzer to work with your network from the
front panel. Information entere in the configuration menus will be store in
nonvolatile memory.
1Go to the System External I/O menu and select LAN Settings.
aTurn on the analy er and wait until the power-up tests are complete.
bb Press the System key.
cIn the System External I/O menu, select the LAN Settings box.
System External I/O menu
LAN Settings
Connecting and Configuring
To configure the network addresses
1–4

2Set up the LAN Settings menu.
LAN Settings menu
Lan Port The LAN Port toggles between LAN TP and LAN BNC. Set it
to whichever type you are using for the connection.
Analyzer IP Address TCP/IP uses the Internet Protocol (IP) Address for
communication between network nodes and requires this
entry. Each IP address on a network must be unique -
contact your system administrator if you need to have one
created for the logic analyzer. The logic analyzer responds to
messages sent to this IP address.
Gateway IP Address Gateways act as connections between different physical
subnets. If the logic analyzer is on a different subnet than the
computer you wish to use it with, you need to enter a gateway
address.
File Timeout This is not the same as the network timeout, which is set on
the computer. The logic analyzer file timeout is how long the
analyzer keeps a file in the active portion of memory. For slow
network connections, a large file timeout decreases the total
time for a file transfer. Too high a file timeout for a fast
network connection can actually slow file transfers because
too much is in active memory. A good guideline for file
timeout is 150% of the average time it takes for packets to go
from source to destination.
Analyzer Name The Analyzer Name is for user reference only. It appears in
the status files of the logic analyzer, and in the X Window
display. It is not the same as the IP name.
Connecting and Configuring
To configure the network addresses
1–5

3If necessary, add the logic analy er to your local network
configuration.
If you are oing a point-to-point connection, this step is unnecessary because
the computer an the logic analyzer only communicate with each other.
For UNIX networks an PC networks base on a UNIX mo el, the network
software requires an entry for the logic analyzer before another computer can
talk to it. These entries are usually kept in a file name /etc/hosts. The
/etc/hosts file also associates an alias with the IP a ress so that you can
use a meaningful name rather than the IP a ress.
Other styles of PC networks have ifferent conventions. Consult your LAN
ocumentation or your local system a ministrator to see if you nee to o
anything else.
Connecting and Configuring
To configure the network addresses
1–6

To verify connectivity with the ping utility
Use the ping utility to verify that the logic analyzer is on your network.
Refer to your network ocumentation for the exact syntax.
•UNIX
ping [IP address|symbolic name]
•MS-DOS
ping [IP address|symbolic name]
•MS Windows
For a Win ows environment, select the ping icon in your network menu.
Refer to your network ocumentation for more information about using the
ping utility.
Connecting and Configuring
To verify connectivity with the ping utility
1–7

To mount the logic analy er
Before Mounting
You need to wait at least 15 seconds after the Analyzer Configuration menu is
displayed before attempting to mount. If you try to mount too soon, you will
receive an error message.
You can mount the logic analyzer on your network for two ifferent levels of
use, control or ata. The logic analyzer accommo ates one control user an
multiple ata users. Control allows users to rea an write files to an from
the analyzer, while ata allows users to only rea files from the file system.
Data users can also write files to the isk rives of the logic analyzer.
If you have trouble, refer to chapter 7, "Troubleshooting."
For the exact syntax of the mount comman for mount, refer to your network
ocumentation.
Mounting and Unmounting
You must unmount the logic analyzer before turning it off. After unmounting,
you can mount the analyzer 15 seconds after the Analyzer Configuration menu
is displayed when powering up the instrument. You can write a network script
that executes an unmount and mount procedure.
Connecting and Configuring
To mount the logic analyzer
1–8

•UNIX
For UNIX, use your network’s comman for an NFS mount.
For example:
mount [analyzer name:]/[control|data][mount point]
Some UNIX workstations will not accept a straight IP a ress. You must a
an aliase name for the logic analyzer to the host file, then use that name in
your mount comman .
Refer to your network ocumentation for more information.
•MS-DOS
For a PC using MS-DOS an running PC-NFS, use a form of the net use
comman .
For example, PC-NFS uses:
net use [drive specifier][IP address or a named alias]\
[control|data]
Refer to your PC-base NFS ocumentation for more information.
•MS Windows
For an MS Win ows environment, refer to your Win ows-base NFS
ocumentation an File Manager ocumentation for mounting instructions.
Connecting and Configuring
To mount the logic analyzer
1–9

1–10

2
Accessing the Logic Analy er
File System

Accessing the Logic Analy er File System
This chapter shows you how to:
•Mount the file system via NFS.
•Access the file system via ftp.
This chapter assumes that the logic analyzer is physically connected to your
local area network. If it is not connected, refer to Chapter 1 for information on
how to connect the system.
Control ser vs. Data ser
You can access the logic analyzer file system as either the control user
or a ata user.
Control ser
•The control user can sen programming comman s.
•The control user has rea an write access to the file system.
•There can only be one control user at any time.
Data ser
•The ata user cannot sen programming comman s.
•The ata user has rea access to the entire file system, but can only
write to \system\disk\hard an \system\disk\flexible
irectories (the logic analyzer isk rives).
•Multiple ata users can access the logic analyzer simultaneously.
Password and File Protection
There is no passwor protection built into the logic analyzer. This
means that files are not protecte against either eletion or being
written over.
2-2

To mount the file system via NFS
The logic analyzer must be on and completely booted up before you can mount
the file system. Once power is applied and the Analyzer Configuration menu is
displayed, allow an additional 15 seconds before attempting to mount the
system.
Be sure to unmount the logic analyzer’s file system before turning off the logic
analyzer. If you don’t do this, you may get a "stale NFS file handle" error
message the next time you try to mount. If you get this message, unmount the
file system and try mounting again.
From Computers Running the NIX Operating System
The syntax of the mount comman is typically
mount [symbolic name|IP address]:/[control|data] /[directory
name]
The symbolic name is the host name of the logic analyzer as set up by your
system a ministrator. Typically, this name is foun in the /etc/hosts file
on your computer or returne by a name server. It is equivalent to the logic
analyzer’s IP (Internet Protocol) a ress.
The control or ata option specifies the type of access you want.
The irectory name is the name of an empty irectory in your computer’s file
system to which the logic analyzer’s file system will be mounte .
See the example on the next page.
Accessing the Logic Analyzer File System
To mount the file system via NFS
2-3

Example Mounting the logic analyzer on a NIX computer
To mount the analyzer name "1660C_1" as the control user to a irectory on
your computer name /logic, enter the following comman at the UNIX
comman line:
mount 1660C_1:/control /logic
After you have entere this comman , you will be able to see the logic
analyzer’s file system un er the /logic irectory on your computer.
To unmount:
umount /logic
Accessing the Logic Analyzer File System
To mount the file system via NFS
2-4