Index ..................................................................................................... 159
Contents 5
Contents 6
Front Matter
Notice
The information contained in this document is subject to change without
notice.
Agilent Technologies shall not be liable for any errors contained in this
document. Agilent Technologies makes no warranties of any kind with
regard to this document, whether express or implied. Agilent Technologies
specifically disclaims the implied warranties of merchantability and fitness
for a particular purpose. Agilent Technologies shall not be liable for any
direct, indirect, special, incidental, or consequential damages, whether
based on contract, tort, or any other legal theory, in connection with the
furnishing of this document or the use of the information in this document.
Warranty Information
A copy of the specific warranty terms applicable to your Agilent T echnologies
product and replacement parts (as applicable) is shipped with your product.
If the warranty terms are not included or if you want a copy
of the warranty terms, contact Agilent Technologies, Inc.
U.S. Government Restricted Rights
The Software and Documentation have been developed entirely at private
expense. They are delivered and licensed as "commercial computer
software" as defined in DFARS 252.227- 7013 (Oct 1988), DFARS 252.2117015 (May 1991) or DFARS 252.227-7014 (Jun 1995), as a "commercial
item" as defined in FAR 2.101(a), or as "Restricted computer software" as
defined in FAR 52.227-19 (Jun 1987) (or any equivalent agency regulation
or contract clause), whichever is applicable. You have only those rights
provided for such Software and Documentation by the applicable FAR or
DFARS clause or the Agilent standard software agreement for the product
involved.
Declaration of Conf or m ity
See the next page for the Declaration of Conformity for the E5810A
LAN/GPIB Gateway for Windows.
7
DECLARATION OF CONFORMITY
According to ISO/IEC Guide 22 and CEN/CENELEC EN 45014
Manufacturer’s Name:
Manufacturer’s Address:
Agilent Technologies, Incorporated
815 – 14
th
St. SW
Loveland, CO 80537
USA
Declares under sole responsibility that the product as originally delivered
Product Name:
Model Number:
Product Options:
LAN/GPIB Gateway for Windows
E5810A
This declaration covers all options of the above product(s)
complies with the essential requirements of the following applicable European Directives, and
carries the CE marking accordingly:
EMC Directive (89/336/EEC, amended by 93/68/EEC)
Low Voltage Directive (73/23/EEC, amended by 93/68/EEC)
and conforms with the following product standards:
EMCStandard
IEC 61326-1:1997+A1:1998 / EN 61326-1:1997+A1:1998
CISPR 11:1990 / EN 55011:1991
IEC 61000-4-2:1995+A1:1998 / EN 61000-4-2:1995
IEC 61000-4-3:1995 / EN 61000-4-3:1995
IEC 61000-4-4:1995 / EN 61000-4-4:1995
IEC 61000-4-5:1995 / EN 61000-4-5:1995
IEC 61000-4-6:1996 / EN 61000-4-6:1996
IEC 61000-4-11:1994 / EN 61000-4-11:1994
The product was tested in a typical configuration with Agilent Technologies test systems.
Safety
IEC 61010-1:2001 / EN 61010-1:2001
Canada: CSA C22.2 No. 1010.1:1992
UL 61010B-1: 2003
Supplementary Information:
This DoC applies to above-listed products placed on the EU market after:
20 April 2004
Date
Ray Corson
Product Regulations Program Manager
For further information, please contact your local Agilent Technologies sales office, agent or distributor,
or Agilent Technologies Deutschland GmbH, Herrenberger Straße 130, D 71034 Böblingen, Germany.
8
ICES Statement
or
This ISM device complies with Canadian ICES-001.
Cet appareil ISM est conforme à la norme NMB-001 du Canada.
Safety Symbols
Instruction manual symbol affixed to
product. Indic ates that the user must
refer to the manual for specific
WARNING or CAUTION information to
avoid pe rsonal injury or damag e to the
product.
Indicates the field wiring terminal that
must be co nnected to earth ground
before operating the equipment —
protects against electrical shock in
case of fault.
WARNING
Alternating current (AC).
Direct current (DC).
Warning. R is k of elec t ri ca l sh oc k .
Calls attention to a procedure,
practice , or co nd iti on tha t co uld ca use
bodily injury or death.
Frame or chassis ground terminal—
typica lly connects to the equipment's
metal frame
CAUTION
Calls attention to a procedure,
practice, or condition that could
possibl y cause damage to equipment
or permanent loss of data.
WARNINGS
The following general safety precautions must be observed during all
phases of operation, service, and repair of this product. Failure to comply
with these precautions or with specific warnings elsewhere in this manual
violates safety standards of design, manufacture, and intended use of the
product. Agilent Technolog ies assumes no liability for the customer's failure
to comply with these requirements.
Ground the equipment: For Safety Class 1 equipment (equipment having a
protective earth terminal), an uninterruptible safety earth ground must be
provided from the mains power source to the product input wiring terminals
or supplied power cable.
DO NOT operate the product in an expl osive atmosphere or in the presence of
flammable gases or fumes.
For continued protection against fire, replace the line fuse(s) only with
fuse(s) of the same voltage and current rating and type. DO NOT use
repaired fuses or short-circuited fuse holders.
9
Keep away from live circuits: Operating personnel must not remove
equipment covers or shields. Procedures involving the removal of covers or
shields are for use by service-trained personnel only. Under certain
conditions, dangerous voltages may exist even with the equipment switched
off. To avoid dangerous electrical shock, DO NOT perform procedures
involving cover or shield removal unless you are qualified to do so.
DO NOT operate damaged equipment:Whenever it is possible that the safety
protection features built into this product have been impaired, either through
physical damage, excessive moisture, or any other reason, REMOVE
POWER and do not use the product until safe operation can be verified by
service-trained personnel. If necessary , return the product to Agilent for
service and repair to ensure that safety features are maintained.
DO NOT service or adjust alone: Do not attempt internal service or
adjustment unless another person, capable of rendering first aid and
resuscitation, is present.
DO NOT substitute parts or modify equipment: Because of the danger of
introducing additional hazards, do not install substitute parts or perform any
unauthorized modification to the product. Return the product to Agilent for
service and repair to ensure that safety features are maintained.
Documentation H istory
All Editions and Updates of this manual and their creation date are listed
below. The first Edition of the manual is Edition 1. The Edition number
increments by 1 whenever the manual is revised. Updates, which are issued
between Editions, contain replacement pages to correct or add additional
information to the current Edition of the manual. Whenever a new Edition is
created, it will contain all of the Update information for the previous Edition.
Each new Edition or Update also includes a revised copy of this
documentation history page.
Windows® is U.S. registered trademarks of Microsoft Corporation.
Support Informati on
Support information for the E5810A LAN/GPIB Gateway for Windows
follows. When calling Agilent with support questions, please hav e the
following information available so we can provide you with a quicker solution
to the problem.
E5810A Serial Number (printed on bottom of the unit and displayed
on the
Information for suggested troubleshooting tips)
Welcome page of the E5810A Web access)
Description of the Problem
Corrective actions already tried (see Chapter 4 - Troubleshoot ing
Contacting Agi lent
You can reach Agilen t Technologies at this telephone number in the
Americas:
Americas Call Center: 1-800-452-4444
For other countries, contact your country’s Agilent support
organization. A list of contact information for other countries is
available on the Agilent Internet site:
www.agilent.com/find/assist.
A list of other Agilent Web sites follows.
11
URLDescription
www.agilent.com/find/assistAgilent Technologies “Contact Us” page
www.agilent.com/find/e5810aThe latest E5810A product information with links to key
Web sites such as FAQs, Data Sheets, etc.
www.agilent.com/find/iolibUpdate the Agilent IO Libraries Suite software
www.agilent.com/find/techsupportThe latest customer support information
www.agilent.com/find/ADNConnectivity resources all in one place
www.agilent.com/find/manualsTechnical suppo rt information, including manuals,
application notes, FAQs, and software and firmware
downloads
www.agilent.com/find/connectivityFor connection, communication and control of test
instruments from your computer, you can find out the
latest in the world of connectivity.
User’s Guide Information
This Agilent E5810A LAN/GPIB Gateway for Windows User’s Guide
describes installation, configuration, and use of an E5810A LAN/GPIB
Gateway for Windows that is connected to an Enterprise (corporate)
network, to a Local Network, or directly to a PC.
NOTE
All Agilent IO Libraries information in this guide refers to
Agilent IO Libraries Suite version 15.0. For specific information on other
versions of the Agilent IO Libraries or Agilent IO Libraries Suite, see the
documentation for that version. You can download both updates and
older versions (for backward compatibility) of the IO Libraries software at
http://www.agilent.com/find/iolib.
12
What’s in This
A listing of the guide contents follows.
Guide?
NOTE
This guide is NOT a tutorial on Local Area Networks (LANs) or specific
LAN operation. Consult your Information Technology (IT) department for
LAN specifics for your application.
ChapterDescription
Chapter 1 - E5810 DescriptionDescribes the E5810, including hardware description and
network operation.
Chapter 2 - Installing the E5810Shows how to install the E5810 and the
Agilent IO Libraries Suite.
Chapter 3 - Using E5810 Web
Access
Chapter 4 - Troubleshooting
Information
Appendix A - E5810
Specifications
Appendix B - Using the Telnet
Utility
GlossaryDefines some of the technical terms used in this guide.
Accessing an
Electronic Copy of
This Guide
There are three ways you can access an electronic (.pdf) version of this
guide, as follows. You will need Adobe Acrobat Reader Version 3.0 or later
to view the electronic version.
Access From the E5810 Web Access. After the E5810 is installed,
you can access an electronic version of the manual by going to the
Welcome page and clicking User’s Guide (under the E5810
Documentation
Shows how to use the E5810 Web access to interface with
the E5810 from your PC.
Shows some ways to troubleshoot the E5810, including front
panel, network, PC client, and instrument checks.
Provides specifications for the E5810.
Provides a summary of using the Telne t utility.
heading).
Access from the IO Control. If the Agilent IO Libraries Suite is
installed, a blue circled IO icon appears on the right hand side of the
Windows toolbar. To access an electronic version of this guide, click
the IO icon, then click
Users Guide
.
Documentation and then click E5810 LAN/GPIB
13
Access from the Web. On your Web browser address line, type:
www.agilent.com/find/manuals and navigate to the E5810
manual.
E5810 Related
Documentation
ProductRelated Documentation
Agilent IO
Libraries Suite
VISATo use the E5810 with VISA, you must configure a remote interface (also
SICLTo develop and use SICL I/O applications for the E5810 in Windows,
T&M ToolkitTo develop programs in Visual Studio .NET, see the Agilent T&M Toolkit
Suggested documentation you can use for E5810 LAN/GPIB Gateway for
Windows operation with the listed I/O application software products follow.
After the Agilent IO Libraries Suite has been installed on your PC, .pdf files
of the Agilent IO Libraries Suite documentation including VISA and SICL
User’s Guides are available. Click the blue IO icon on the Windows taskbar
and then click Documentation.
The Agilent IO Libraries Suite Getting Started Guide and the IO Libraries Suite Online Help d escrib e the use of the IO Libraries Suite.
known as VISA LAN Client operation). To develop and use VISA applications
for the E5810, see the Agilent VISA User’s Guide.
see the Agilent SICL User’s Guide for Windows.
product. Information is available at www.agilent.com/find/toolkit.
14
1
E5810 Description
E5810 Description
This chapter gives guidelines to install, configure, and troubleshoot the
E5810 LAN/GPIB Gateway for Windows (E5810) for use with supported,
network-equipped computer systems, including:
E5810 Hardware Description
E5810 Software/Firmware
16Chapter 1
E5810 Description
LAN GPIB RS232
E5810
Typically Router
or Switch
GPIB Instruments
To RS-232
Instrument
LAN
Patch
Cables
GPIB
GPIB
GPIB
Enterprise Network Connections
To Enterprise
Network
GPIB Ports
E5810 Hardware Description
E5810 Hardware Description
The E5810 LAN/GPIB Gateway for Windows provides a gateway between
network-equipped computer systems and GPIB and/or RS-232 based
instruments. This section provides an overview of E5810 hardware,
including:
Typical Network Connections
Front Panel Features
Rear Panel Features
Power-On and Default Settings
Rack Mount Kit (Optional)
Ty pical Net wor k Co nn ec tio ns
The E5810 can be connected to an Enterprise (corporate) network, to a
Local network (isolated LAN), or directly to a PC and can be connected to
as many as 14 GPIB instruments and/or to one RS-232 instrument. The
E5810 allows I/O applications to obtain measurement data either locally or
remotely from GPIB and/or RS-232 instrumentation. The following figures
show typical network and direct PC connections to an E5810.
Enterp ri se Network
Connections
In a typical Enterprise (corporate) network, the E5810 is connected to the
network by a router or switch. For this configuration, the E5810 is visible to
the Enterprise network.
Chapter 117
E5810 Description
Local Network Connections (Multiple PCs can Communicate with the E5810)
LAN GPIB RS232
E5810
Typically Hub
or Switch
GPIB Instruments
To RS-232
Instrument
LAN Patch
Cable
GPIB
GPIB
GPIB
GPIB
LAN GPIB RS232
E5810
GPIB Instruments
To RS-232
Instrument
Crossover
Cable
GPIB
GPIB
GPIB
GPIB
Direct PC Connection (Only One PC can Communic ate with the E5810)
Connect to
PC LAN Card
E5810 Hardware Descriptio n
Local Netw ork
Connections
Typically, a hub or switch is used for local network configuration. A cable/
DSL router may be used to provide a DHCP Server. For typical direct
connections from a PC to the E5810, a
crossover cable i s connect ed from
the E5810 LAN port to a LAN card on the PC. For Local Network or direct
PC connections, the E5810 is not visible on the Enterprise network.
18Chapter 1
E5810 Description
Activity
LAN GPIB RS232
PowerFault
Preset
E5810ALAN/GPIB Gateway
agiltb6
169.254.58.10
Display
A 16-character, two-line display
that displays the Hostname (if
known) and the IP Addre ss plu s
system messages.
Power LED
When ON (Green), shows AC
power is applied to the E5810.
LAN LED
Flashes for activity on the LAN.
GPIB LED
Flashes for GPIB instrument activity.
Fault LED
If ON (RED) for >10 sec,
indicates possible hardware
failure. Briefly turn s ON at
power-on while the E581 0
is running its self-test.
Preset But to n
Depressing for <10 sec temporarily resets only
the default passw or d (E5810). Depressing for
>10 sec resets all parameter s to factory default
values and reboots the E5810.
RS232 LED
Flashes for RS-232 instr ument act ivity.
E5810 Hardware Description
Front Pa nel Features
This section describes the E5810 front panel features,
NOTE
The Hostname, if detected, is displayed on the first line of the E5810 front
panel display. The IP Address of the E5810 is displayed on the second
line of the E5810 front panel display .
Front Panel
Display/LEDs
This figure shows E5810 front panel functions.
Chapter 119
E5810 Description
Power Applied
Display is blank, Power (Green) and Fault (Red) are ON.
169.254.58.10
Activity
LAN GPIB RS232
PowerFault
Preset
E5810ALAN/GPIB Gateway
Activity
LAN GPIB RS232
PowerFault
Preset
E5810ALAN/GPIB Gateway
Searching for DHCP Server
Display displays message, Power (Green) is ON and Fault (Red) is OFF. This typically takes
20 to 30 seconds and can take up to 150 seconds if a DHCP Server is not present.
Searching for
DHCP Server...
IP Address and Hostname Displayed
Display displays Hostname, (if known) and IP address, only Power (Green) is ON.
Activity
LAN GPIB RS232
PowerFault
Preset
E5810ALAN/GPIB Gateway
Hostname
IP Address
E5810 Hardware Descriptio n
Typical Power-On
Sequence
This figure shows major steps in a typical power-on sequence for an E5810
that is connected to a network that supports Dynamic Host Configuration
Protocol (DHCP) and Domain Name Service (DNS). If the network does not
support DHCP and/or DNS, the power-on sequence may be different than
that shown.
When power is first applied to the E5810 and the hardware self-test has
completed, the E5810 is initialized to the factory-set default configuration.
This table shows the default configuration parameter settings for the E5810.
The E5810 uses these default configuration values until you set any other
configuration values. The E5810 also uses these values when you press the
Preset button and hold it down for >10 seconds. See Chapter 3 - Using
E5810 Web Access for a description of each parameter.
RS-232 Stop Bits:1
<MAC Addr>
I/O Timeout (sec):120 secPasswordE5810
GPIB SICL Interfac e Name:gpib0
Preset Button
Operation
The Preset button on the front panel of the E5810 is used to reset the E5810
to its default configuration values (preset at the factory). As shown in the
figure on the next page, the
If you depress the Preset button and release it in <10 seconds, only
the E5810 password is temporarily changed and is reset to its
default value (E5810). If you cycle power or reboot the E5810, the
E5810 will return to the actual password that was previously set. All
existing configuration values remain unchanged.
If you depress and hold the Preset button for 10 seconds or more, all
configuration values are reset to their factory default values and the
E5810 is rebooted. All network connections to the E5810, if any, are
also terminated without any cleanups.
Chapter 121
Preset button has two modes of operation:
E5810 Description
Depr ess and Hold the Preset Button (>10 Seconds )**
Hostname
IP Address
Temporary Pass-
word = "E5810"
Hostname
IP Address
Hold to Reboot
& Set Defaults
Setting Factory
Defaults
Rebooting
E5810...
Depress and Quickly (<10 seconds) Release the Preset Button *
- The E5810 password is temporarily reset to its factory default (E5810).
- All other configuration parameters remain unchanged.
- This state is maintained until the next time the E5810 is booted.
- The front panel display sequence is as follows.
* Release the
Preset
button when
Temporary Password = "E 5810"
is displayed.
Hostname
IP Address
Temporary Pass-
word = "E5810"
- All configuration parameters are set to their default values.
- The E5810 is rebooted.
- The front panel display sequence is as follows.
** Release the
Preset
button when
Rebooting E5810...
is displayed.
E5810 Hardware Descriptio n
22Chapter 1
E5810 Hardware Description
GPIB Port
Connect one end of GPIB
cable to this port and connect
other end of cable to a GPIB
instrument.
RS232 Port
Connect one end of RS-232
cable to this port and connect
other end of cable to an
RS-232 instrument.
LAN Port
Connect one end of a LAN patch
cable to this port and connect
the other end of the cable to a
router/hub/switch.
OR
Connect one end of a crossover
cable to this port and the other
end of the cable to a LAN card
on your PC.
LAN Activity Lights
When the green Ln light is ON, the E5810
is successfully connected to the LAN. When
the green Tx light flashes, the E5810 is
transmitting data onto the LAN.
POWER Port
Connect AC power cord to this
port and plug cord into an AC
outlet. The E5810 does not
have a power switch. The Mains
discon nect is to unplug the AC
power cord from the AC outlet.
The power supply automatically
conforms to the input voltage
and frequency supplied, within
100V - 240V (±10%) @ 47-63 Hz.
Serial Number and Ethernet Address
The E5810 Serial Number and Ethernet
(MAC) Address are printed on a label on
the underside of the E5810.
Rear Panel Features
This figure shows the rear panel features of the E5810.
E5810 Description
Rack Mount Kit (Optional)
As desired, you can mount up to two E5810 in a standard EIA rack using the
E5810 Rack Mount Kit (E5810 Opt 100 or E5810-00100). The E5810 is one
standard half-rack unit wide and one standard rack unit high. See the
E5810-00100 Rack Mount Kit f or ins tallation inst r uc ti o ns .
Chapter 123
E5810 Description
E5810 Software/Firmware
E5810 Software/Firmware
The E5810 LAN/GPIB Gateway for Windows provides an interface
(gateway) that allows networked computers to talk or listen to GPIB and/or
RS-232 devices via Local Area Network (LAN) connections. The E5810
connects a network (Enterprise or Local) from PCs with Windows
2000/XP/Vista to GPIB and/or RS-232 instruments. This section describes
E5810 software/firmware features, including:
E5810 Operating Features
Typical Network Operation
Software/Firmware Architecture
Typical Network IP Addressing
Communicating with the E5810
24Chapter 1
E5810 Oper ati ng Fea ture s
FeatureDescription
E5810 Description
E5810 Software/Firmware
Rem o te access to
instruments via LAN
I/O Software IncludedThe E5810 includes the Agilent IO Libraries Suite, which includes
Supports DHCP
Protocol
Access and control up to 14 GPIB and/or one RS-232 instrument via a
10BASE-T/100BASE-TX Ethernet. The E5810 detects the network
and configures itself to the appropriate speed. The E5810 has a
standard RJ-45 LAN connector. You can use adapters to connect other
interface types, such as optical or wireless LAN.
Agilent Virtual Instrument Software Architecture (VISA), VISA COM,
Standard Instrument Control Library (SICL), and several I/O utilities.
This standard software provides compatibility with different hardware
and software vendors. It provides the I/O software layer used when
accessing the E5810. Y ou can use a standard programming language,
such as Visual Basic, Visual C++, Agilent VEE, etc.
The E5810 supports all I/O application operations provided by VISA,
VISA COM, SICL, and Agilent VEE. The E5810 is supported on
Microsoft Windows 2000/XP/Vista.
You can also use the Agilent IntuiLink software (included with some
Agilent products) to download data and send waveforms to the source,
with no programming.
The E5810 supports Dynamic Host Configuration Protocol (DHCP) to
get its IP address. Although the E5810 defaults to using DHCP, you
can turn DHCP OFF and statically assign the E5810 IP address.
Ease of UseBuilt-in Web access and front panel display allow you to easily set up,
configure, and use the E5810. You can connect multiple E5810s in a
test system. Each E5810 creates a separate GPIB bus.
Chapter 125
E5810 Description
Client System
GPIB
GPIB Instruments
Server
E5810
LAN
RS-232
RS-232 Instrument
E5810 Software/Firmware
Typic al Net wor k Operat io n
The E5810 provides a network gateway between network-equipped
computer systems and GPIB and/or RS-232 based instruments. The
gateway enables users to obtain measurement data either locally or
remotely from GPIB and/or RS-232 instruments. See “Typical Network
Connections” in this chapter for typical connections to Enterprise or Local
Networks or to a PC.
The E5810 connects a local area network (LAN) from the computer system
to the GPIB and/or RS-232 buses. Network-equipped computer systems
that are supported for use with the E5810 include PCs with Windows
2000/XP/Vista. Using the client/server model of computing, the computer
system is the
client, and the E5810 is the server.
Thus, applications running on the computer system can transparently
interface to GPIB and RS-232 based instruments over the LAN. Since
several computer systems can access the E5810, groups of users can share
access to the same GPIB and/or RS-232 instruments via the E5810. In
addition, existing I/O applications that are supported with the E5810 and are
designed for GPIB or RS-232 can use the E5810 without modification other
than an address change.
The E5810 and its attached instruments can be placed anywhere on the
network (rather than with a particular controller or server computer system).
This includes networks which span different geographic locations, such as
when networked computer systems are located at several different sites.
Thus, GPIB and RS-232 instruments can be located where they are most
convenient. In addition, you can have more than one E5810 on a network,
providing “clusters” of GPIB and/or RS-232 instrumentation at different
locations.
26Chapter 1
E5810 Description
Client System
Application
Agilen t VI SA
SICL
LAN Client
TCP
IP
LAN Interface
Server (E5810)Instrument
LAN Server
TCP
IP I/O
Driver
LAN Interface
Instrument
Firmware
GPIB or RS-232 bus
E5810 Software/Firmware
Software/Firmware Architecture
To program instruments from your PC via the E5810 using a programming
language such as C or Visual Basic, you must install and configure the
Agilent IO Libraries Suite on the client PC.
Client System
Architecture
As shown in the following figure, the client (PC) system contains the VISA
LAN client software as well as the TCP/IP LAN software needed to access
the E5810. The E5810 contains LAN server and TCP/IP LAN firmware so it
acts as the LAN server .
The VISA LAN client software is also known as the Remote IO Client
software. It is part of the Agilent IO Libraries Suite. The LAN server software
is also called the Remote IO Server software.
The VISA LAN client software uses the TCP/IP LAN protocol suite to pass
messages between the client system and the server (the E5810). Therefore,
the client sends I/O requests over the network to the server. The server then
executes those I/O requests on the appropriate GPIB and/or RS-232 based
instrument(s) connected to the server.
Chapter 127
E5810 Description
E5810 Software/Firmware
How IO Application
Softwar e Works
With the E5810
Before trying to perform an I/O application operation on the E5810 GPIB
interface and the GPIB bus, the Remote IO Client software in the client
computer system establishes a network connection to the remote I/O server
(the E5810). Once the client establishes a connection, the client can begin to
send I/O requests to the E5810.
The E5810 (remote I/O server) can have multiple clients connected and
being serviced at any given time. The maximum number of concurrent client
connections depends on memory usage in the E5810, including the number
of clients and the number of current sessions running on those clients.
However, up to 16 client connections can be running concurrently. Thus, if
the maximum number of client connections to the E5810 has not been
exceeded, the connection is allowed to occur.
Although several instruments can be connected to the E5810 GPIB bus,
only one I/O application operation can occur on the GPIB bus at any given
time. Therefore, once a client’s request begins to execute on the GPIB, all
other client requests for operations on the GPIB must wait until the current
client request completes. Client requests are serviced in a first come, first
served manner, unless they are prohibited by interface or device locks.
If a client has a sequence of I/O application operations to perform that
should not be preempted, the client should obtain a lock on the E5810 GPIB
interface or device. Once the client’s sequence has completed, it should
release its lock, allowing access for other clients.
When a client closes a connection, the E5810 frees up the resources
allocated to that client, including any locks, pending I/O requests, memory
usage, etc.
This section describes typical Enterprise network IP addresses and subnet
addresses on the network. This figure shows a typical Enterprise network,
consisting of a Router (Gateway), a corporate Dynamic Host Configuration
Protocol (DHCP) Server, and a subnet consisting of six hosts (two E5810s
and four host PCs.) The Router sends packets of information to each host,
based on the IP address of the host. The subnet is defined by the
Mask
for the IP addresses on the subnet.
E5810 Description
E5810 Software/Firmware
Subnet
Chapter 129
E5810 Description
E5810 Software/Firmware
Subnet AddressingA Subnet Mask is used to determine to which subnet an IP address belongs.
An IP address has two components: the network address and the host
address. For example, assuming IP address 156.215.117.109 is part of a
Class B network, the first two numbers (156.215) represent the Class B
network address and the second two numbers (117.109) identify a specific
host on this network. See the Glossary for a description of a Class B
network.
For the subnet in the figure, an example IP address for E5810 #1 is
156.140.104.72, where 156.140 represents the network address and 104.72
represents the E5810 #1 host address. An example IP address for E5810 #2
is 156.140.104.75, where 156.140 represents the network address and
104.75 represents the E5810 #2 host address.
E5810 IP Address
Assignment
For the E5810 to operate on an Enterprise network, three addresses must
be identified: E5810 IP Address, Subnet Mask, and Default Gateway
Address.
If the Enterprise network supports Dynamic Host Configuration Protocol
(DHCP), the E5810 will automatically receive an IP address, Subnet Mask,
and Default Gateway from the DHCP Server. If the network does not support
DHCP, the E5810 IP address must be configured manually.
In addition, if the network supports Domain Name Service (DNS), an E5810
Hostname can be configured. This can be done in one of two ways:
The DNS Server IP Address is provided by the DHCP Server (this is
transparent to the user).
A DNS Server IP address is supplied by the System Administrator
and entered on the
Configuring your E5810 LAN/GPIB Gateway page .
30Chapter 1
Loading...
+ 134 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.