Agilent Technologies L4400 User Manual
Agilent L4400 Series
LXI Class C Instruments
User’s Guide
Agilent Technologies
Notices
© Agilent Technologies, Inc. 2006
No part of this manual may be reproduced
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laws.
Manual Part Number
34989-90000
Edition
First Edition, May 2006
Printed in Malaysia
Agilent Technologies, Inc.
815 14th Street SW
Loveland, CO 80537 USA
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technical data.
Safety Notices
CAUTION
A CAUTION notice denotes a hazard. It calls attention to an operating procedure, practice, or the like
that, if not correctly performed or
adhered to, could result in damage
to the product or loss of important
data. Do not proceed beyond a
CAUTION notice until the indicated
conditions are fully understood and
met.
WARNING
A WARNING notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly performed or adhered to, could result
in personal injury or death. Do not
proceed beyond a WARNING
notice until the indicated conditions are fully understood and met.
If software is for use in the performance of
a U.S. Government prime contract or subcontract, Software is delivered and
licensed as “Commercial computer software” as defined in DFAR 252.227-7014
(June 1995), or as a “commercial item” as
defined in FAR 2.101(a) or as “Restricted
computer software” as defined in FAR
52.227-19 (June 1987) or any equivalent
i
Additional Safety Notices
The following general safety precautions
must be observed during all phases of operation of this instrument. Failure to comply
with these precautions or with specific
warnings or instructions elsewhere in this
manual violates safety standards of design,
manufacture, and intended use of the
instrument. Agilent Technologies assumes
no liability of the customer’s failure to comply with the requirements.
General
Do not use this products in any manner not
specified by the manufacturer. The protective features of this product may be
impaired if it is used in a manner not specified in the operation instructions.
Before Applying Power
Verify that all safety precautions are taken.
Make all connections to the unit before
applying power.
Ground the Instrument
This product is provided with protective
earth terminals. To minimize shock hazard,
the instrument must be connected to the
ac power mains through a grounded power
cable, with the ground wire firmly connected to an electrical ground (safety
ground) at the power outlet. Any interruption of the protective (grounding) conductor or disconnection of the protective earth
terminal will cause a potential shock hazard that could result in personal injury.
Do Not Modify the Instrument
Do not install substitute parts or perform
any unauthorized modification to the product. Return the product to an Agilent Sales
and Service Office for service and repair to
ensure that safety features are maintained.
In Case of Damage
Instruments that appear damaged or defective should be made inoperative and
secured against unintended operation until
they can be repaired by qualified service
personnel.
Safety Symbols
Alternating current
Frame or chassis
terminal
Standby supply. Unit is
not completely
disconnected from ac
mains when switch is off
Caution, risk of electric
shock
Caution, refer to
accompanying description
Do Not Operate in an Explosive
Atmosphere
Do not operate the instrument in the presence of flammable gases or fumes.
Do Not Remove the Instrument
Cover
Only qualified, service-trained personal
who are aware of the hazards involved
should remove instrument covers. Always
disconnect the power cable and any external circuits before removing the instrument
cover.
ii
If you have questions about your shipment, or if you need information
about warranty, service, or technical support, contact Agilent
Te ch n ol o gi e s:
In the United States: (800) 829-4444
In Europe: 31 20 547 2111
In Japan: 0120-421-345
Or go to ww.agilent.com/find/assist for information on contacting
Agilent in your country of specific location. You can also contact your
Agilent Technologies Representative.
According to ISO/IEC Guide 22 and CEN/CENELEC EN 45014
DECLARATION OF CONFORMITY
Manufacturer’s Name:
Manufacturer’s Address:
Agilent Technologies, Incorporated
815 – 14
th
St. SW
Loveland, CO 80537
USA
Declares under sole responsibility that the products as originally delivered:
Model Number Product Name
L4421A LXI 40-Channel Armature Multiplexer
L4433A LXI Dual/Quad 4x8 Reed Matrix
L4437A LXI 32-Channel General Purpose Switch
L4445A LXI Microwave Switch / Attenuator Driver
L4450A LXI 64 Bit Digital I/O
L4451A LXI 4-Channel Isolated D/A Converter
L4452A LXI Multifunction Module
Product Options:
This declaration covers all options of the above product(s)
comply with the essential requirements of the following applicable European Directives, and carry
the CE marking accordingly:
Low Voltage Directive (73/23/EEC, amended by 93/68/EEC)
EMC Directive (89/336/EEC, amended by 93/68/EEC)
and conform with the following product standards:
EMC Standard
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
Canada: ICES-001:1998
Australia/New Zealand: AS/NZS 2064.1
Safety
IEC 61010-1:2001 / EN 61010-1:2001
Canada: CSA C22.2 No. 61010-1:2004
USA: UL 61010-1: 2004
Limit
Group 1 Class A
4 kV CD, 4 kV AD
3 V/m, 80-1000 MHz
0.5 kV signal lines, 1 kV power lines
0.5 kV line-line, 1 kV line-ground
3 V, 0.15-80 MHz 1 cycle, 100%
Interrupt: 10 ms, 20 ms
Supplementary Information:
This DoC applies to above-listed products placed on the EU market after:
1 May 2006
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.
Template: A5971-5302-2, Rev. B.00 L4421A-DoC-A DoC Revision A
Contents
1 Introduction to the L4400 Series LXI Instruments
2 Software Installation and Configuration
Instrument Considerations 2
Environmental Operating Conditions 2
Electrical Operating Conditions 3
Interconnection Solutions Overview 4
Bench-Top Operation and Instrument Rack Mounting 5
Bench-Top Operation 5
Rack Mounting 5
Procedure 6
Applying Power 11
Connecting the Power Cord and Turning On the Instrument 11
Installing the Agilent IO Libraries and L4400 Instrument Drivers 14
Installing the Agilent IO Libraries 14
Installing the L4400 Instrument Drivers 15
Configuring the L4400 Instruments 17
Selecting a LAN Network 17
Connecting the LAN Cables 18
IP Addresses and Host Names 20
Configuring the LAN Interface 21
Identifying the Instruments 27
Using the Instrument Web Interface 28
LAN Configuration Command Summary 32
GPIB Configuration 33
Firmware Updates 39
Downloading the Update Utility and Firmware 39
Instrument Power-On and Default LAN Configuration States 45
LAN Reset (Default) Configuration 45
L4400 User’s Guide v
3 Operating and Programming
L4400 Instrument Front Panel Overview 48
The LAN Reset Button 48
The Front Panel LEDs 48
L4400 Instrument Rear Panel Overview 50
L4400 Series Channel Addressing Scheme 52
Introduction to the SCPI Command Language 52
Syntax Conventions 53
Command Separators 54
Using the MIN and MAX Parameters 54
Querying Parameter Settings 54
Specifying Channel Lists and Scan Lists 55
L4400 SCPI Command Summary 55
L4400 Series Programming Examples 59
Modifying IVI-COM Examples (.NET) 59
Modifying IVI-C Examples 61
Modifying VISA and VISA COM Examples 62
Using L4400 Instruments in Agilent 34980A Applications 64
Analog Bus Applications 65
Environmental Operating Conditions 66
Electrical Operating Conditions 66
Safety Interlock 67
User-Defined Channel Labels 68
Scanning Applications 69
Rules for Scanning 69
Creating the Scan List 71
Trigge r Cou n t 75
Sweep Count 76
Channel Delay 77
Reading Format 79
Non-Sequential Scanning 79
Monitor Mode 80
Scanning with External Instruments 81
Alarm Limits 84
Viewing Stored Alarm Data 87
Using the Alarm Output Lines 88
vi L4400 User’s Guide
Using Sequences 89
Defining a Sequence 90
Querying the Sequence Definition 93
Executing a Sequence 93
Executing a Sequence on an Alarm Condition 94
Deleting Sequences 95
Reading the List of Stored Sequences 95
Instrument State Storage 96
Error Conditions 97
Relay Cycle Count 98
Calibration Overview 98
4 L4421A 40-Channel Armature Multiplexer
Low Frequency Multiplexer Switch Instrument 102
L4421A Measurement Functions 102
L4421A SCPI Command Summary 103
L4421A Example Program Segments 105
L4421A 40-Channel Armature Multiplexer Hardware Description 106
L4421A Simplified Schematic 108
L4421A D-Sub Connectors 109
34921T Terminal Block 110
5 L4433A Dual/Quad 4x8 Reed Matrix
Matrix Switch Instrument 114
L4433A SCPI Command Summary 115
L4433A Example Program Segments 116
Linking Multiple L4433A Instruments 118
L4433A Dual/Quad 4x8 Reed Matrix Hardware Description 120
L4433A Simplified Schematic for Two-Wire Mode 122
L4433A D-Sub Connectors for Two-Wire Mode 123
34933T-001 Terminal Block for Two-Wire Mode 124
L4433A Simplified Schematic for One-Wire Mode 126
L4433A D-Sub Connectors for One-Wire Mode 127
34933T-002 Terminal Block for One-Wire Mode 128
L4400 User’s Guide vii
6 L4437A General Purpose Switch
General Purpose Switch Instrument 130
L4437A SCPI Command Summary 132
L4437A Example Program Segments 133
L4437A 32-Channel General Purpose Switch Hardware Description 134
L4437A Simplified Schematic 134
L4437A D-Sub Connectors 135
34937T Terminal Block 136
7 Microwave Switch/Attenuator Driver
L4445A SCPI Command Summary 142
L4445A Microwave Switch/Attenuator Driver 144
Recommended Switches and Attenuators 147
Power Supplies 148
Channel Numbering 149
Simple Switch Control 150
Remote Module Identifiers 151
Drive Modes 151
Using Single Drive Switches and Attenuators 152
Using Dual Drive Switches and Attenuators 153
Using Pulse Drive 154
Long Execution Times 155
Verifying Switch State 155
LED Drive 157
Default and Reset States 158
Y1150A 161
Y1151A 165
Y1152A 170
Y1153A 175
Y1154A 180
Y1155A 185
Mounting the Remote Modules 193
SCPI Programming Examples 194
viii L4400 User’s Guide
8 L4450A 64-Bit Digital I/O with Memory and Counter
L4450A SCPI Command Summary 198
L4450A 64-Bit Digital I/O with Memory and Counter 205
Basic Digital I/O Operations 206
Handshaking 209
Buffered I/O Operations 216
Interrupt Lines 219
Byte Ordering 220
Pattern Matching 221
Counter 222
Initiated Measurement Mode 223
Clock 224
L4450A D-Sub Connectors 224
34950T Terminal Block 227
9 L4451A 4-Channel Isolated D/A Converter with Waveform Memory
L4451A 4-Channel Isolated D/A Converter with Waveform Memory 224
L4451A SCPI Command Summary 226
L4451A Example Program Segments 228
L4451A Simplified Block Diagrams 231
L4451A D-Sub Connector Pinout 232
34951T Terminal Block 233
10 L4452A Multifunction Module with DIO, D/A, and Totalizer
L4452A Multifunction Module 236
Digital Input/Output 236
To ta li z e r I n p ut 236
Analog Output (DAC) 236
L4452A SCPI Command Summary 237
L4452A Example Program Segments 241
L4452A Simplified Block Diagram 243
L4452A D-Sub Connector 244
34952T Terminal Block 245
L4400 User’s Guide ix
A L4451A and L4452A Calibration Procedures
Calibration Procedures 248
Agilent Technologies Calibration Services 248
Calibration Interval 248
Time Required for Calibration 249
Automating Calibration Procedures 249
Recommended Test Equipment 249
Calibration Security 249
Calibration Message 252
Calibration Count 252
Calibration Process 252
Aborting a Calibration in Progress 253
Performance Verification Tests 253
L4451A and L4452A Performance Test Considerations 253
L4451A 4-Channel Isolated DAC Module 253
L4452A Multifunction Module 261
x L4400 User’s Guide
Agilent L4400 LXI Class C Instruments
User’s Guide
1
Introduction to the L4400 Series
LXI Instruments
Instrument Considerations 2
Interconnection Solutions Overview 4
Bench-Top Operation and Instrument Rack Mounting 5
Applying Power 11
Welcome. The products covered in this user’s guide represent the Agilent
L4400 Series of LXI Class C instruments. LXI, an acronym for LAN
eXtensions for Instrumentation, is an instrumentation standard for devices
that use the Ethernet (LAN) as their primary communications interface.
The L4400 series family of instruments provide switching and multifunction
test capabilites for design verification, automated test, and data acquisition
applications. The instruments include:
• L4421A 40- Channel Armature Multiplexer Module
• L4433A Dual/Quad 4x8 Reed Matrix Module
• L4437A 32- Channel General Purpose Switch Module
• L4445A Microwave Switch/Attenuator Driver Module
• L4450A 64- Bit Digital I/O Module with Memory and Counter
• L4451A 4-Channel Isolated D/A Converter w/ Waveform Memory Module
• L4452A Multifunction Module
This chapter contains general information on instrument environmental and
electrical operating conditions, instrument interconnections, and rack
mounting instructions. The chapter also contains information on applying
power.
Agilent Technologies
1
1 Introduction to the L4400 Series LXI Instruments
Instrument Considerations
This section lists important items and actions that can affect the operation of
your modules.
Environmental Operating Conditions
The L4400 Series LXI modules are designed to operate in a temperature
range of 0 °C to +55 °C with non- condensing humidity. The maximum
humidity is 80% at 40 °C or higher. Do not use in locations where conductive
dust or electrolytic salt dust may be present.
The modules should be operated in an indoor environment where
temperature and humidity are controlled. Condensation can pose a potential
shock hazard. Condensation can occur when the modules are moved from a
cold to a warm environment, or if the temperature and/or humidity of the
environment changes quickly.
The following table shows maximum voltage ratings for each module.
If conditions change, ensure that condensation has evaporated and the
instrument has thermally stabilized until pollution degree 1 conditions are
restored before turning on power to the equipment.
Table 1-1. L4400 Series LXI Instrument Voltage Ratings.
Instrument
L4421A 40 channels, 300V rms or DC, 1A,
L4433A Dual/quad 4x8 matrix, 150 Vpeak,
L4437A
L4445A See Chapter 7 - L4445A See Chapter 7 - L4445A
L4450A 64 channels, 5V, 30 mA Max 64 channels, 5v, 30 mA Max
L4451A 4 channels 16V, 20 mA 4 channels, 16V, 20 mA
L4452A 32 DIO channels, 42V, 400 mA,
Pollution Degree 1 Specifications Pollution Degree 2 Specifications
40 channels, 100V rms or DC, 1A,
60 VA/channel
0.5A, 10 VA/channel
28 channels, 300 V rms or DC, 1A,
60 VA per channel
4 channels, 250 V rms or 30 VDC,
5A, 150 VA per channel
2 channel DAC, 12V, 10 mA
60 VA/channel
Dual/quad 4x8 matrix, 100 Vpeak,
0.5 A, 10 VA per channel
28 channels, 100 V rms or DC, 1A,
60 VA per channel
4 channels, 100 V rms or 30 VDC,
5A, 150 VA per channel
32 DIO channels, 42V, 400 mA,
2 channel DAC, 12V, 10 mA
2 L4400 User’s Guide
Introduction to the L4400 Series LXI Instruments 1
NOTE
NOTE
Pollution Degree 1: No pollution or only dry, non-conductive pollution
occurs. The pollution has no influence (on insulation) (IEC 61010-1
2nd Edition).
Pollution Degree 2: Normally only non-conductive pollution occurs.
Occasionally, a temporary conductivity (leakage current between
isolated conductors) caused by condensation can be expected (IEC
61010-1 2nd Edition).
Electrical Operating Conditions
WARNING
Tr an s ie n ts
To avoid electric shock, turn off the L4400 instrument and
disconnect or de-energize all field wiring to the instrument and to
the analog bus connector (if present) before removing any
terminal block covers.
The L4421A, L4433A, and L4437A modules are designed to safely withstand
occasional transient overvoltages up to 1000 Vpeak. Typically, these
transient overvoltages result from switching inductive loads or from nearby
lightning strikes. The lightning- caused transient overvoltages that may
occasionally occur on mains power outlets may be as high as 2500 Vpeak.
The L4445A, L4450A, L4451A, and L4452A modules are intended for only
low-voltage applications, and should not be connected to circuits that may
generate or conduct large transient voltages.
High Energy Sources
These instruments are designed to handle inputs up to their rated currents
or their rated powers, whichever is less. Under certain fault conditions, high
energy sources could provide substantially more current or power than a
module can handle. It is important to provide external current limiting, such
as fuses, if the instrument inputs are connected to high- energy sources.
CAUTION
Install current limiting devices between high energy sources and
the module inputs.
L4400 User’s Guide 3
1 Introduction to the L4400 Series LXI Instruments
Interconnection Solutions Overview
Depending on your specific requirements, you can connect your DUT
to the L4400 LXI instrument using the following optional interconnection
solutions. See the L4400 series Product Data Sheets for additional
information. The data sheets can be located on the Web at:
www.agilent.com/find/L4400
Terminal Blocks Detachable terminal blocks are available for most of the L4400
series instruments and offer a flexible method for connecting external wiring
(300V rated). Each terminal block is customized for a specific module.
Ordering Information: 349xxT(e.g., 34921T, 34937T, etc.)
Shielded Cables Standard cables are available for 50- pin D- sub and
78- pin D- sub connectors. Depending on the module and your specific
requirements, one or two cables may be required per module.
Ordering Information:
Y1135A (1.5 meters, 50-pin D- sub, 300V)
Y1136A (3 meters, 50-pin D- sub, 300V)
Y1137A (1.5 meters, 78- pin D- sub, 300V)
Y1138A (3 meters, 78-pin D- sub, 300V)
Solder Cup Connector Kits These connector kits are available if you want to
build your own custom cables.
Ordering Information:
Y1139A (50- pin D- sub female, 125V, for L4421A/L4433A/L4437A)
Y1141A (50- pin D- sub male, 125V, for L4451A/L4452A)
Y1142A (78- pin D- sub male, 60V, for L4450A)
L4445A Remote (Extender) Modules and Distribution Boards These kits expand the
number of switches and attenuators controlled by the L4445A Microwave
Switch/Attenuator Driver instrument.
Ordering Information:
34945EXT (External Driver)
Distribution Boards:
Y1150A (Eight N181x SPDT switches)
Y1151A (Two 87104x/106x multiport or 87406B matrix switches)
Y1152A (One 87204x/206x or 87606B switch and two N181x switches)
Y1153A (Two 84904/5/6/7/8 or 8494/5/6 step attenuators)
Y1154A (Two 87222 transfer switches and six N181x SPDT switches)
Y1155A (Generic screw terminals for driving 16 switch coils
4 L4400 User’s Guide
Introduction to the L4400 Series LXI Instruments 1
Bench-Top Operation and Instrument Rack Mounting
The L4400 series instruments can be located on a bench- top or rack mounted
in standard 19- inch EIA rack cabinets.
Bench-Top Operation
Cooling and ventilation of the L4400 series instruments are through the sides
of the instrument chassis. When placed on the bench- top, ensure the sides of
the instrument are not directly covered or blocked.
Rack Mounting
The L4400 instruments are mounted in EIA rack cabinets using the Y1160A
rack mount kit. The kit allows you to mount one or two L4400 instruments
side- by- side on a sliding shelf, while occupying one EIA rack unit of space.
Rackmounting instructions are provided with the kit and are also provided
here.
Rack Mounting Kit Contents
The contents of the Y1160A sliding shelf rack mount kit are listed in Table
1- 2.
Table 1-2. L4400 (Y1160A) Rack Mount Kit Contents.
Item Description
1 M4x8 flat head screw 1515-1367 12
2 10-32 pan head dress screw 0570-1577 4
3 10-32 x 0.625 pan head screw 2680-0105 10
4 10-32 x 0.5 flat head screw 2510-0283 2
5 10-32 clip-on nut 0590-0804 12
6 10-32 nut w/lock washer 2740-0003 4
7 Sliding shelf 5180-0102 1
8 Shelf rails 5180-0103 2
9 Filler panels 5180-0104 2
10 Rear (rail) brackets 5180-0105 2
Part Number Quantity
--- Installation Instructions Y1160-90030 1
L4400 User’s Guide 5
1 Introduction to the L4400 Series LXI Instruments
Procedure
Figure 1- 1 is a composite drawing of the Y1160A sliding shelf rack mount kit.
The drawing shows the location/usage of the hardware items listed in Table
1- 2.
10
7
8
9
1
4
2
5
3
6
Figure 1-1. Y1160A Instrument Rack Mount Kit (L4400 Series).
6 L4400 User’s Guide
Introduction to the L4400 Series LXI Instruments 1
The L4400 instrument(s) can be mounted between any two adjacent EIA unit
indicators (Figure 1- 2). On Agilent racks, an EIA unit indicator is
represented by a triangle (
!) on the rack’s front and rear- facing columns. A
single EIA unit extends from the triangle indicator to the next indicator on
the column (1 Unit = 44.45 mm = 1.75 in).
EIA unit indicators
(1 EIA unit)
44.45 mm
(1.75 in)
6.35 mm
15.875 mm
15.875 mm
6.35 mm
Figure 1-2. EIA Unit Indicators for Installing the Y1160A Rack Mount Kit.
NOTE
It is not necessary to remove the cabinet side panels to rack mount the
L4400 instruments. The side panels can be removed, however, if additional
access to the cabinet’s vertical columns is desired.
Install the Shelf Rails
1. Select the vertical position in the rack between any two adjacent EIA unit
indicators where the L4400 instrument is to be installed. Insert clip- on nuts
(item 5) on the three holes between the unit indicators. Place nuts on both
the left and right front- facing columns (Figure 1- 3).
L4400 User’s Guide 7
1 Introduction to the L4400 Series LXI Instruments
If center- facing columns with holes are present on the frame, insert a clip- on
nut on the hole perpendicular to the center hole on the front facing column.
See Figure 1-3.
back of rack
insert clip nuts
on first and third
holes between indicators
center-facing colums
(center of rack)
rail “channel
insert clip nut
if column present
insert clip nuts
between rack unit
indicators
front-facing colums
Figure 1-3. Rack Column and Shelf Rail Orientation.
2. With the rail “channel” facing the center of the rack, connect the rail to the
front facing column using a 10- 32 flathead screw (item 4) and the center
clip- on nut on the front-facing column. Repeat for the rail on the opposite
column. Ensure the rail channel faces the center of the rack.
If the rack has center- facing columns (Figure 1-3), insert a 10- 32 pan head
screw through the rail opening and clip nut (perpendicular to the
front- facing column). Repeat for the rail on the opposite column.
3. On the rack’s rear- facing columns, insert clip- on nuts on t he first and third
holes between the EIA unit indicators that are at the same vertical position
as the indicators on the front- facing columns.
4. Attach the rear brackets to the rail ends using two 10-32 pan head screws
(item 3) and two 10-32 nuts with lockwashers (item 6) per rail. Adjust the
bracket along the rail until the bracket end aligns with (covers) the rack’s
rear- facing columns. Tighten the 10- 32 pan head screws to firmly connect the
bracket to the rail and maintain the rail length.
Connect the rail brackets to the rear- facing columns using two 10- 32 pan
head screws per column.
8 L4400 User’s Guide
Introduction to the L4400 Series LXI Instruments 1
Install the Sliding Shelf
Facing the rack, slide the shelf (item 7) onto the bottom surfaces of the rail
channels. The tabs at the back of the shelf pass underneath the channel
surface. The tabs allow you to extend the shelf from the cabinet, thus
providing a working surface for mounting the instruments.
Rail channel
Shelf tab
Bottom surface
Figure 1-4. Installing the Shelf.
Install Instruments on the Shelf
The L4400 instruments can be installed flush (even) with front edge of the
shelf, recessed in 50 mm increments, or reverse-mounted with the front of
the instrument facing the back of the rack cabinet.
1. Extend the shelf from the rack such that approximately 50% - 75% of the
shelf surface is outside of the rack. (The tabs on the back of the shelf that run
underneath the rail channel prevent the shelf from tipping.)
2. Determine the position of the instruments (flush, recessed, reversed). To
accommodate the terminal blocks (available with some of the L4400
instruments) and to simplify cable routing, it is recommended that the
instruments be mounted flush (even) with the front or back edge of the shelf.
3. Note the location of the four mounting holes on the bottom of the
instrument (Figure 1- 1). Set the carrier on the shelf, and align the mounting
holes with the holes on the shelf. Insert four M4x8 flat head screws (item 1)
upward through the bottom of the shelf and into the carrier mounting holes.
L4400 User’s Guide 9
1 Introduction to the L4400 Series LXI Instruments
4. Install the second L4400 instrument (if present) in the shelf area adjacent
to the first instrument. If only one instrument is installed, install a filler
panel on the front edge of the unused area. Insert two M4x8 flat head screws
(item 1) upward through the bottom of the shelf and into the panel.
5. Connect the instrument power cord, LAN cable, and GPIB cable if present.
6. For instruments that have accompanying terminal blocks, partially remove
the instrument sub- assembly from the instrument (carrier) by loosening the
spring- loaded mounting screws (Figure 1- 5). Remove the support sleeve from
the terminal block. Locate and remove the flat head screws from the sleeve
and remove the pan head screw from between the instrument’s D- sub
connectors (Figure 1- 5). Connect the sleeve to the instrument using the flat
head and pan head screws as shown. Reconnect the sub- assembly.
spring-loaded
mounting screws
pan head screw
flat head screws
instrument sub-assembly
terminal block
support sleeve
pan head screw
flat head screws
Figure 1-5. Connecting the Terminal Block Support Sleeve.
NOTE
10 L4400 User’s Guide
Refer to Chapters 4-10 for information on Terminal Block wiring and
connecting the terminal block to the instrument.
Applying Power
Introduction to the L4400 Series LXI Instruments 1
Connect the Shelf to the Rack Frame
Once the instruments are installed and all power cords and cables are routed
as intended, slide the shelf into the cabinet until the shelf handles meet the
front-facing columns of the rack frame. Using two10-32 pan head dress
screws (item 2) per column, secure the shelf to the frame.
The input power, operating environment, and storage environment
specifications for the L4400 series instruments are listed in Table 1-3. Refer
to the instrument data sheets for a complete listing of instrument
specifications. The data sheets can be found on the Web at:
www.agilent.com/find/L4400
Table 1-3. Agilent L4400 Series Instrument Input Power Specifications.
Instrument Description
L4421A
L4433A
L4437A
L4445A
L4450A
L4451A
L4452A
Power Supply:
Power Line Frequency:
Power Consumption: 50VA
Operating Environment:
Storage Environment:
Universal 100V to 240V
50Hz to 60Hz
Full accuracy for 0
Full accuracy to 80% R.H. at 40
-40
°C to 70°C
±10% auto sensing
Connecting the Power Cord and Turning On the Instrument
Connect the power cord supplied with the instrument or a power cord rated
for the conditions listed in Table 1-3 to the electrical outlet and to the
instrument.
Turn the instrument on (and off) by pressing the power button shown in
Figure 1-6.
±10%
°C to 55°C
°C
L4400 User’s Guide 11
1 Introduction to the L4400 Series LXI Instruments
Refer to Table 3- 1 (Chapter 3) for definitions of the LEDs (ATTN, LAN, PWR)
on the L4400 instrument front panel.
Power Button
Figure 1-6. Location of the L4400 Series Instrument Power Button.
12 L4400 User’s Guide
Agilent L4400 LXI Class C Instruments
User’s Guide
2
Software Installation and Configuration
Installing the Agilent IO Libraries and L4400 Instrument Drivers 14
Configuring the L4400 Instruments 17
GPIB Configuration 33
Firmware Updates 39
Instrument Power-On and Default LAN Configuration States 45
This chapter contains the software installation and configuration procedures
required for you to use the L4400 series instruments. Also included are
procedures for configuring the LAN and (optional) GPIB interfaces, and for
testing the communication (IO) paths to the instruments.
Agilent Technologies
13
2 Software Installation and Configuration
Installing the Agilent IO Libraries and L4400 Instrument Drivers
Communication and control of the L4400 series instruments from a Microsoft®
programming environment is provided through the following software that is
included with the L4400A instruments:
• Agilent E2094A IO Libraries Suite 14.1
• Agilent L4400A Product Reference CD- ROM (p/n 34989-13601)
This section covers the sequence and procedures for installing the IO libraries
and instrument drivers required to program the instruments.
Installing the Agilent IO Libraries
The Agilent IO Libraries Suite must be installed first, followed by the L4400
instrument drivers that are located on the Product Reference CD-ROM (p/n
34989-13601). The IO Libraries are contained on the Agilent Automation- Ready CD included with the instrument, or may be downloaded from the
Agilent Developer Network website at http://adn.tm.agilent.com, under ‘Software Downloads: IO Libraries Suite’.
Before installing the IO libraries, review table 2- 1 to verify that your computer
meets the specifications required by the software.
Table 2-1. Agilent IO Libraries Suite System Requirements.
Processor 450 MHz Intel Pentium® II or higher
Operating System Windows XP Professional or Home Edition (Service Pack 1 or
later
Windows 2000 Professional (Service Pack 4 or later)
Web Browser Microsoft Internet Explorer 5.01 or greater (recommended)
Available Memory 128 MB (256 MB or greater recommended)
Available Disk Space 225 MB required for installation:
- 160 MB for Microsoft .NET Framework
- 65 MB for Agilent IO Libraries Suite
175 MB required for operation:
- 110 MB for Microsoft .NET Framework
- 65 MB for Agilent IO Libraries Suite
Video Super VGA (800x600) with 256 colors
14 L4400 User’s Guide
Software Installation and Configuration 2
Close all applications on your computer. Insert the Agilent Automation-Ready CD into
the CD-ROM drive. Follow the instructions as prompted during the installation. Accept
all default directories specified.
If the IO libraries installation does not start automatically, select Start > Run from the
Windows Start menu and type <drive>:\autorun\auto.exe where <drive> is the designator of the CD-ROM drive.
NOTE
NOTE
After the IO libraries have been successfully installed, you will see the Agilent IO Control (IO icon) in the taskbar notification area of your computer screen (Figure 2-1).
If another vendor’s implementation of VISA (Virtual Instrument Software
Architecture) is currently installed on your computer, continue installation
of the Agilent IO Libraries by installing Agilent VISA in side-by-side mode.
More information on side-by-side operation can be found in the Agilent IO
Libraries Suite Help (available after installation is complete) under “Using
Agilent VISA with Another Vendor’s VISA.
Installing the Agilent IO Libraries also installs the Interchangeable Virtual
Instrument (IVI) Shared Components. The IVI Shared Components are
required before IVI drivers (e.g. IVI-COM, IVI-C) can be installed (see
“Installing the L4400 Instrument Drivers”).
Figure 2-1. Agilent IO Control Icon.
Installing the L4400 Instrument Drivers
Insert the L4400 Product Reference CD-ROM into the computer. The installation program will open the menu window shown in Figure 2-2. If the program does not start
automatically, select Start -> Run -> Open: <cd-rom drive>:\index.html.
L4400 User’s Guide 15
2 Software Installation and Configuration
Figure 2-2. L4400 Product Reference CD-ROM Software (Driver) Menu
Install the appropriate driver from the menu based on the environment you will use to
program the L4400 instruments. Table 2-2 contains a list of common environments and
corresponding drivers. Accept all default directories specified during installation.
Table 2-2. L4400 Programming Environments and Recommended Drivers
Programming Environment
Microsoft® Visual C 6.0 Visual C++, ANSI C
Microsoft® Visual Basic 6.0
Microsoft Visual Studio .NET for C#, C,
Visual Basic
Agilent VEE
National Instruments LabVIEW
National Instruments LabWindows/CVI
Recommended Drivers
IVI-C, IVI COM, VISA
IVI-COM, VISA, VISA-COM
IVI-COM
IVI-COM
LabVIEW Plug&Play (with
L44XX native mode driver),
IVI-C
IVI-C
For information on firmware updates that may be available after purchase,
refer to “Firmware Updates” at the end of this chapter.
16 L4400 User’s Guide
Configuring the L4400 Instruments
Instrument configuration as applied to the L4400 series of LXI instruments
involves the following:
• identifying the IP address and host name (LAN programming)
• (optional) setting the GPIB address
• testing the communication paths (LAN and/or GPIB) to the instrument
• opening the Web interface to the instrument
Each task listed above is accomplished using the Agilent Connection Expert
Feature of the Agilent IO Libraries Suite.
The information included this section of the chapter is:
Software Installation and Configuration 2
• Selecting a LAN Network
• Connecting the LAN Cables
• Configuring the LAN Interface
• GPIB Configuration
Selecting a LAN Network
This user’s guide defines a private (isolated) LAN as a network in which
instrument access is limited to a direct connection between the computer and
the instrument, or to multiple instruments connected via a dedicated router or
switch. A site (company- wide) LAN is defined as a network in which
instrument access is available to many users in on-site and remote locations.
The instrument’s application and/or your company’s Information Technology
(IT) department may have guidelines that help decide the type (private or site)
of network used. If a network configuration has not been determined, refer to
the following considerations concerning each type.
Private LAN Considerations
Some of the basic parameters of a private LAN network to consider are:
security, performance, reliability, and IP address availability.
L4400 User’s Guide 17
2 Software Installation and Configuration
Security: a private network generally involves direct connections between the
computer and the instruments, and may include switches and routers. Access
to the instrument is limited to users connected directly to the private network,
as opposed to users on a site network that could locate and access the
instrument from any location - possibly disrupting tests in progress. Code
generation for test systems on a private network is often simplified as
protection against unauthorized users may not be required.
Performance: test systems where large amounts of data are transferred
usually have faster throughput on a private network. On a site network, heavy
and unpredictable LAN traffic (lots of data) affects each instrument (node) on
the network. The impact on a test system is that repeatability is difficult to
achieve as latencies are difficult to account for.
Reliability: private networks are fundamentally more reliable than site
networks as they host fewer users and are less complex than site networks.
Private networks are isolated from conditions that could bring down (crash) a
site network.
IP Address Availability: Every instrument (node) on a LAN (private or site)
has an IP (Internet Protocol) address. Due to the expanding use of the internet,
the number of site network IP addresses available is limited. By using a router
with Dynamic Host Configuration Protocol (DHCP) capability on a private
network, the router can assign an IP address to each instrument thus creating
a sub- network (subnet) that does not consume site IP addresses.
Site LAN Considerations
For applications requiring access by many users or by users at distributed
sites, a site LAN network is required. In addition to supporting multiple users,
site LANs often offer the advantage of being maintained by IT departments.
When using a site LAN, consult your IT department regarding all LAN
configuration and security issues.
Connecting the LAN Cables
LAN cables are connected to the LAN terminal on the instrument, the
computer, and to the router or switch if they are part of your network.
18 L4400 User’s Guide
Private Network Connections
Figure 2-3 shows typical LAN cable connections for a private network.
Typical Private (isolated) LAN Networks
Direct
Connection
Software Installation and Configuration 2
Router / Switch
Connection
When making a direct connection between the L4400 instrument and the PC,
use the yellow LAN crossover cable provided with the instrument. Note, if
your computer supports Auto-MDIX or contains a LAN card with gigabit data
transfer rates, the (yellow) crossover cable is not required. A standard LAN
cable can be used instead. For private LAN networks that include a switch or
router, use standard LAN cables for network connections. Do not use the
crossover cable.
CAT5 Crossover Cable
PC
Ethernet Hub / Switch / Router
PC
L4400 L4400 L4400 L4400
L4400
Figure 2-3. Typical Private LAN Network Connections.
Once the LAN cables are connected, you can turn on the L4400 instrument(s).
L4400 User’s Guide 19
2 Software Installation and Configuration
Site Network Connections
Figure 2-4 shows typical LAN cable connections for a site network.
Typical Site LAN Networks
To Site LAN
Router / Switch
Connection
On site networks, the L4400 instruments and the computer are connected
directly to site LAN ports, or are connected to the site LAN through a switch.
In each site network configuration, standard LAN cables are used.
Once all LAN cables are connected, turn on the L4400A instrument.
PC
Ethernet Hub / Switch / Router
PC
L4400 L4400
Figure 2-4. Typical Site LAN Network Connections.
standard LAN cable
L4400
L4400
To Site LAN
L4400
IP Addresses and Host Names
Dynamic Host Configuration Protocol (DHCP) and Automatic IP are enabled
on each L4400 series instrument shipped from Agilent. This allows the
instrument to automatically obtain an address on the network. If there is a
DHCP server on the network, the server will assign the address to the
instrument.
If there is not a DHCP server on the network, the L4400 instrument will
automatically determine an address to use. The address will be in the range of
169.254.xxx.xxx. If available, the instrument will try to acquire its default
setting of 169.254.44.88.
20 L4400 User’s Guide
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