Contents
HP E8491B IEEE 1394 PC Link to VXI Configuration and User’s Guide
Edition 2
Safety Symbols.............................................................................................................6
WARNINGS.................................................................................................................6
Declaration of Conformity............................................................................................7
Reader Comment Sheet ................................................................................................9
Chapter 1
Introduction ..................................................................................................................11
Using the IEEE 1394 Serial Bus in VXI Systems......................................................11
Component Overview .........................................................................................11
The HP E8491B PC Link to VXI Interconnect ............................................11
The OHCI-Compatible PCI-to-IEEE 1394 Host Adapter ............................11
The HP I/O Libraries ....................................................................................11
Using this Manual ..............................................................................................11
Chapter 2: Interface Installation and Configuration .....................................11
Chapter 3: VXI Programming Using the IEEE 1394 Serial Bus ..................12
Chapter 4: IEEE 1394 Fundamentals and Interface Overview .....................12
Appendix A: Specifications ..........................................................................12
Appendix B: Editing the HP E8491B Resource Manager Configuration .... 12
Additional Information ........................................................................................12
Chapter 2
Interface Installation and Configuration ...................................................................13
Using this Chapter ......................................................................................................13
Step 1: Installing the IEEE 1394Host Adapter ....................................................13
Where to go Next ..........................................................................................17
Step 2: Installing the HP E8491B Interconnect ..................................................17
Alternate Configurations ..............................................................................19
Where to go Next ..........................................................................................20
Step 3: Insta lling VXI Instruments ......................................................................20
Installing C-size Instruments ........................................................................21
Installing A- and B-size Instruments ............................................................22
Step 4: Installing the HP I/O Libraries ................................................................24
Configuring the HP E8491B Interconnect ....................................................24
Editing the HP E8491B Configuration .........................................................26
Editing the HP E8491B Configuration on Windows 95 Platforms .............. 27
Step 5: Installing HP VXIplug&play Instrument Drivers ...................................28
Step 6. Veri fying the Installation ........................................................................29
Using Instrument Soft Front Panels ..............................................................29
Viewing the Resource Manager Output .......................................................30
Troubleshooting Installation Problems ...............................................................33
Running the Resource Manager ..........................................................................33
Contents 1
Chapter 3
VXI Programming Using the IEEE 1394 Serial Bus ................................................35
Using this Chapter ......................................................................................................35
Programming Register-Based and Message-Based VXI Instruments .................35
Opening Instrument Sessions ..............................................................................35
Optimizing Programs ..........................................................................................36
Block Data Transfers ....................................................................................36
Block Transfers using HP VXIplug&play Drivers .......................................37
Block Transfers using HP VISA ...................................................................40
HP E8491B Triggering ........................................................................................43
Using Triggers ......................................................................................... .....43
Configuring the E8491B Trig In and Trig Out Ports ....................................44
Triggering Example ......................................................................................45
Trigger Pull Up .............................................................................................47
Using HP E8491B Shared Memory ....................................................................47
Locating E8491B Shared Memory ...............................................................47
Example Pr ograms ..............................................................................................49
Storing Readings in Shared Memory - HP VISA Example ..........................50
Storing Readings in Shared Memory - SICL Example ................................54
Chapter 4
IEEE 1394 Fundamentals and Interface Overview ..................................................57
Using this Chapter ......................................................................................................57
IEEE 1394 Topology and Terminology ..............................................................57
Features of the IEEE 1394 Bus .....................................................................58
Optimizing the Configuration .......................................................................59
IEEE 1394 Data Transfer Protocol ......................................................................59
Asynchronous Data Transfers .......................................................................60
Fair Arbitration Protocol ...............................................................................60
VXI Data Transfers .......................................................................................60
OHCI-Compatible Host Adapter and Interface Cable ........................................61
The HP E8491B PC to VXI Interconnect ...........................................................62
Using the HP E8491B with the HP E1406 Command Module ....................64
The HP I/O Libraries ...........................................................................................64
2 Contents
Appendix A
Specifications ................................................................................................................65
Interface Characteristics ......................................................................................65
VXI Characteristics .................................................... ......... .................. ......... .....65
General .......................................................................... ......... ......... ......... .....65
CLK 10 .........................................................................................................66
External Trigger Input ..................................................................................66
External Trigger Outpu t ................................................................................66
Trigger Delays ..............................................................................................67
Cooling .........................................................................................................67
Power Supply Loading .................................................................................67
Appendix B
Editing the HP E8491B Resource Manager Configuration .....................................69
Introduction.................................................................................................................69
Configuration File Overview ..............................................................................69
The names.cf Configuration File ..................................................................72
The oride.cf Configuration File ....................................................................72
The vmedev.cf Configuration File ................................................................72
The cmdrsrvt.cf Configuration File ..............................................................72
The dynamic.cf Configuration File ...............................................................72
The irq.cf Configuration File ........................................................................73
The ttltrig.cf Configuration File ...................................................................73
The vximanuf.cf Configuration File .............................................................73
The vximodel.cf Configuration File .............................................................73
Utility Function Overview ..................................................................................73
Using ivxisc .................................................................................... ......... .....73
Using iclear ................................................................... ......... ......... ......... .....75
Index ................................................................................................................................ 77
Contents 3
4 Contents
HEWLETT-PACKARD WARRANTY STATEMENT
HP PRODUCT: HP E8491B IEEE 1394 PC LINK to VXI
1. HP warrants HP hardware, accessori es and supplies against defects i n mat erials and workmanship for the period specified above. If
HP receives notice o f such defects during the warranty period, HP will, at its option, either repair or re place products which prove to be
defective. Replacement products may be either new or like-new.
2. HP warrants that HP software will not fail to execut e its programming instructions, for the period specified above, due to defects in
material and workmanship when properly installed and used. If HP recei ves notice of such defects during t he warranty period, HP will
replace software media which does not execute i ts programming instructi ons due to such defects.
3. HP does not warrant that the operation of HP products will be interrupted or error free. If HP is unable, within a reasonable time, to
repair or replace any product to a condition as warranted, customer will be entitled to a refund of the purchase price upon prompt return
of the product.
4. HP products may con tain remanufactured parts equivalent to new in performance o r may have been subject to incidental use.
5. The warranty period begins on the date of delivery or on the date of installation if installed by HP. If customer schedules or delays HP
installation more than 30 days after delivery, warranty begins on the 31st day from delivery.
6. Warranty does not apply to defects resulting from (a) improper or inadequate maintenance or calibration, (b) software, interfacing, parts
or supplies not supplied by HP, (c) unauthorized modification or misuse, (d) operation outside of the published environmental
specifications for the product, or (e) improper site preparation or maintenance.
7. TO THE EXTENT ALLOWED BY LOCAL LAW, THE ABOVE WARRANTIES ARE EXCLUSIVE AND NO OTHER
WARRANTY OR CONDITION, WHETHER WRITTEN OR ORAL, IS EXPRESSED OR IMPLIED AND HP SPECIFICALLY
DISCLAIMS ANY IMPLIED WARRANTY OR CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, AND
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he Software and Documentati on have been developed entirely at private exp e nse. They are delivered and licensed as "commercial
computer software" as defined in DFARS 252.227- 7013 (Oct 1988), DFARS 252.211-7015 (May 1991) or DFARS 252.227-7014 (Jun
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HP E8491B IEEE 1394 PC Link to VXI Configuration and User’s Guide
Copyright © 1999 Hewlett-Packard Company. All Rights Reserved.
Edition 2
5
or
Documentation History
All Editions and Updates of t his manu al and th eir creati on da te are list ed belo w. The first Edition of the m anual is Ed ition 1. The Edition
number increments by 1 whenever the manual is revised. Update s, which are issued between Editions , contain replacement pages t o
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 E dition. Each new Edition or Update also inc ludes a revised c opy of this do cumentation history page.
Edition 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .June 1998
Edition 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .June 1999
Safety Symbols
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product. Indicates that the user must refer to
product. Indicates that the user must refer to
the manual for specific WARNING or
the manual for specific WARNING or
CAUTION information to av oid personal
CAUTION information to av oid personal
injury or damage to the product.
injury or damage to the product.
Indicates the field wiring te rminal that must
be connected to earth ground be fore
operating the equipment—protects against
electrical shock in case of fault.
WARNING
Alternating current (AC)
Direct current (DC).
Indicates hazardous voltages.
Calls attention to a procedure, practice, or
condition that could cause bodily injury or
death.
Frame or chassis ground terminal —typically
connects to the equipment' s metal frame.
CAUTION
Calls attention to a procedure, practice, or
condition that coul d possibly cause damage to
equipment or perman ent 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. Hewlett-Packard Com pany 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 explosive atmosphere or in the presence of fla mmable 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.
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 sw itche d off. To av oid danger ous ele ctric al sh ock, DO NOT perfor m pro cedure s inv olving cover or shi eld remova l unles s you
are qualified to do so.
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and repair to ensure that safety features are maintained.
6
Declaration of Conformity
according to ISO/IEC Guide 22 and EN 45014
Manufacturer’s Name: Hewlett-Packard Company
Loveland Manufacturing Center
Manufacturer’s Address: 815 14th Street S.W.
Loveland, Colorado 80537
declares, that the product:
Product Name: IEEE 1394 PC Link to VXI
Model Number: HP E8491B
Product Options: All
conforms to the following Product Specifications:
Safety: IEC 61010-1 (1990) + A1:1992 + A2:1995/EN61010-1 + A1:1993 + A2:1995
CSA C22.2 #1010.1:1992
UL 3111-1
IEC 60950:1991 + A1:1992 + A2:1993 + A3:1994 + A4:1996/
EN60950:1992 + A1:1993 + A2:1993 + A3:1995 + A4:1997
UL 1950
EMC: CISPR 22:1993 + A1:1995/EN55022:1992 + A1:1995 : Class A
CISPR 11:1990/EN55011 (1991): Group1 Class A
EN50082-1:1997
IEC 61000-4-2:1995/: 4kVCD, 8kVAD
IEC 61000-4-3:1995/: 3 V/m
IEC 61000-4-4:1995/: 1kV Power Line, 0.5kV Signal Lines
IEC 61000-4-5:1995/: 1kV, CM 0.5 kV DM
IEC 61000-4-6:1996/: 3 Vrms
IEC 61000-4-11:1994/: 30%, 10ms 80%, 100ms
Supplementary Information: The product herewith complies with the requirements of the Low Voltage Directive
73/23/EEC and the EMC Directive 89/336/EEC (inclusive 93/68/EEC) and carries the "CE" mark accordingly.
Tested in a typical configuration in an HP C-Size VXI mainframe.
March 5, 1999
For Compliance I nf o rm at ion ONLY, contact:
Jim White, QA Manager
Australian Contact: Product Regulations Manager, Hewlett-Packard Australia Ltd., 31-41 Joseph Street,
Blackburn, Victoria 3130, Australia
European Contact: Your local Hewlett-Packard Sales and Service Office or Hewlett-Packard GmbH,
Department HQ-TRE, Herrenberger Straße 130, D-71034 Böblingen, Germany
(FAX +49-7031-14-3143)
USA Contact: Product Regulations Manager, Hewlett-Packard Company, P.O. Box 301,
Mail Stop BU212, Loveland, CO 80537
7
Notes:
8
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HP E8491B IEEE 1394 PC Link to VXI Configuration and User’s Guide
Edition 2
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Introduction
Using the IEEE 1394 Serial Bus in VXI Systems
The IEEE 1394 Serial Bus (FireWire) is a high-speed bus that has been
implemented as an I/O in terface between exter nal PCs and HP VXI systems.
The bus links the PC backplane to the VXI mainframe backplane. This
manual describes the implementation, configuration, and use of this
interface.
Chapter 1
Component
Overview
Implementation of t he IEEE 139 4 seri al bus a s an I/ O inter face for HP VXI
systems is provided through three components and two operating systems:
•HP E8491B PC Link to VXI Interconnect
•OHCI-compatible PCI-to-IEEE 1394 Host Adapter
•HP I/O Libraries
•WIN 95 and WIN NT operating systems
The HP E8491B PC Link
to VXI Interconnect
The OHCI-Compatible
PCI-to-IEEE 1394 Host
Adapter
The HP I/O Libraries The HP I/O Libraries provide the HP VISA and HP SICL drivers required
The HP E8491B is the VXI hardware that links the VXI mainframe
backplane to the IEEE 1394 serial bus. The E8491B is a 1-slot, C-size,
message-based device that is installed in mainframe slot 0.
The OHCI PCI-to-1394 Host Adapter card is installed in the PC and links
the computer’s (PCI) backplane to the IEEE 1394 bus. The OHCI adapter
has three external IEEE 1394 ports and can support up to 16 HP E8491Bs.
to use the HP E8491B. Included with the libraries are the drivers for the
OHCI-compatible host adapter.
Using this Manual This manual is organi zed to help you ins tall, configur e, an d begin u sing th e
IEEE 1394 serial bus as quickly and efficiently as possible. The following
information outlines the contents of the other chapters, and identifies the
areas of programming a VXI system that are NOT covered in this manual.
Chapter 2: Interface
Installation and
Configuration
This chapter contains information on installing the HP E8491B hardware
and its drivers (the HP I/O Libraries). Also included is information on
installing VXI instruments, installing HP VXIplug&play drivers, and on
verifying the system.
Introduction 11Chapter 1
Chapter 3: VXI
Programming Using the
IEEE 1394 Serial Bus
This chapter contains the information necessary to begin communicating
with VXI instruments through the HP E8491B and IEEE 1394 serial bus.
The chapter contains information on optimizing system performance using
block data transfe rs, and also cover s triggering and us ing HP E8491B shared
memory.
Chapter 4: IEEE 1394
Fundamentals and
Interface Overview
Appendix A:
Specifications
Appendix B: Editing the
HP E8491B Resource
Manager Configuration
Additional
Information
Note Pop-up or pull-down menus displayed by the HP I/O Libraries software
This chapter descr ibes th e IEEE 1 394 ser ial bus an d how i t is implemen ted
in HP VXI systems. It defines the bus terminology and data transfer
protocol.
Appendix A contains the operating and performance specifications of the
HP E8491B.
Appendix B contains in formation on edi ting your VXI sy stem configuration
as set by the resource manager . It desc ribes select ed confi gurat ion fi les and
utility functions used to view and modify your configuration.
Programming the HP E8491B is thr ough HP VISA and HP SICL fun ctions.
Although this manual identi fies the specif ic functions used, you wil l need to
refer to the HP VISA and HP SICL manuals for detailed information.
Also, included with the HP I/O Libraries is the utility ‘I_O Config’. This
utility is used to configure th e HP E8491B and has a help file associa ted with
it.
will show I/O Libraries as “I_O Libraries ” and I/O Config as “I _O Config”
because the “/” c annot be displayed. The “/ ” character is ther ef ore replaced
by the underscore character.
12 Introduction Chapter 1
Interface Installation and Configuration
Using this Chapter
Chapter 2
This chapter contains information necessary to install and configure the
IEEE 1394 host adap ter (if r equired) and the HP E8491B int erconnect . The
installation sequ ence and other top ics cover ed in this chapte r are as foll ows:
• Step 1: Installing the IEEE 1394 Host Adapter . . . . . . . . . . 13
• Step 2: Installing the HP E8491B Interconnect . . . . . . . . . . 17
• Step 3: Installing VXI Instruments . . . . . . . . . . . . . . . . . . . . 20
• Step 4: Installing the HP I/O Libraries . . . . . . . . . . . . . . . . . 24
• Step 5: Installing HP VXIplug&play Instrument Drivers. . . 28
• Step6: Verifying the Installation . . . . . . . . . . . . . . . . . . . . . . 29
• Running the Resource Manager . . . . . . . . . . . . . . . . . . . . . . 33
Step 1: Installing
the IEEE 1394
Host Adapter
WARNING Ref er to your computer’s documentation for specific
Note If your personal computer (PC) currentl y has a Solect ron OHCI403 PCI-to -
The IEEE 1394 adapter shipped as Option 001 to the HP E8491B is an
OHCI-compatible PCI-to-IEEE 1394 Host Adapter. Included with the
adapter is a cable for powering IEEE 1394 devices and a 4.5m interface
cable.
instructions about the installation of PCI adapters.
IEEE 1394 host adapter, a later version OHCI-compatible PCI-to-IEEE
1394 host adapter or a built- in IEEE 1394 port, proc eed to S tep 2: Install ing
the HP E8491 Interconnect.
Interface Installation and Configuration 13Chapter 2
External
IEEE 1394
Connectors
The layout of a typical host adapter is shown in Figure 2-1.
12 VDC
Power Connector
Figure 2-1. Layout of a Typical OHCI-Compatible PCI-to-IEEE 1394 Host Adapter.
WARNING Turn off and disconnect the power to your computer and to any
peripheral devices before installing the host adapter. Refer to
your computer’s documentation for specific instructions about
the installation of PCI adapters.
1. Remove the computer chas sis cove r to expo se the e xpansion s lots and
external access covers.
2. Locate an unused, unobstructed PCI bus expansion slot (Figure 2-2)
that supports bus mastering. (PCI bus slots are usually white or
ivory.) See your computer documentation to determine if the PCI slot
supports bus mastering.
14 Interface Installation and Configuration Chapter 2
PCI expansion slots
(usually white or ivory)
shared slot
Figure 2-2. Locating a PCI bus Expansion Slot.
Note Many computer PCI systems have one pair of ISA and PCI slots close to
each other. This saves space and allows you to install either an ISA card or
a PCI card in the slot pair.
3. Remove the corresponding expansion slot cover from the computer
chassis (Figure 2-3).
expansion slot cover
Figure 2-3. Removing the PC Expansion Slot Cover.
Interface Installation and Configuration 15Chapter 2
4. Align the bus contacts on the bo tt om of the host adapter with the PCI
bus slot. Carefully, but firmly, press the adapter into the slot.
Host
Adapter
Figure 2-4. Installing the Host Adapter.
5. Secure the host adapter bracket to the computer chassis with the
screw from the expansion slot cover removed in step C.
Connecting the Power Cable
6. Connect the power cabl e between the adapter and the PC as shown in
Figure 2-5. This provid es power from the ad apter to devi ces alon g the
interface via the interface cable. This allows you to cycle power on
any VXI mainframe in multi-frame systems without affecting other
frames. The power is also available to other IEEE 1394 devices that
may be part of the interface network. The host adapter is capable of
supplying 12V with a maximum current draw of 0.5 amps total to all
three IEEE 1394 connectors.
16 Interface Installation and Configuration Chapter 2
Host
Adapter
12V DC
Power
Connector
Figure 2-5. Connecting the Power Cable Between the PC and the Host Adapter.
Power In
(From System
Power Supply)
Power Out
(To Disk Drives)
7. Replace the computer cover. Connect one end of the interf ace cable to
either adapter external connector.
Where to go Next •If you are installing the IEEE 1394 interface for the first time:
Continue with “Step 2: Installing the HP E8491B Interconnect.”
•If the E8491B and your VXI instruments are already installed:
Proceed to “Step 4: Installin g the HP I/O Libraries.” Note that the
HP I/O Libra r ies contai n the OHCI-compatible host adapte r drivers.
Note Refer to Chapter 4: IEEE 1394 Fundamentals and Interface Overview for
more information on the OHCI-compatible PCI-t o- IEEE 139 4 host adap ter.
Step 2: Installing
the HP E8491B
The HP E8491B interconnect links the IEEE 1394 bus to the backplane of
the VXI mainframe. The HP E8491B is a C-size devic e with VXI Resource
Manager and Slot 0 capability.
Interconnect
There are no configuration s witches on the HP E8491B. The device ’s logical
address is 0 and it provide s the syste m’s resourc e manager functi onality vi a
software that is part of the HP I/O Libraries. Its VXI servant area is 255,
therefore; it is the interface to all VXI devices with logical addresses
between 1 and 255. The HP E8491B is normally, but not required to be,
installed in mainframe slot 0.
Note Refer to “Alternate Configurations” on page 19 for information on using
the HP E8491B with the HP E1406 Command Module and using it in
VXI-MXI systems.
Interface Installation and Configuration 17Chapter 2
Retaining
Screws
1. If power i s applied to the VXI mainframe, remove pow er to the VXI
mainframe and disconnect all power sources that may be applied to
any instruments.
2. Insert the E8491B into mainfr ame slo t 0 by alig nin g the modul e with
the guides inside th e mainframe (Fi gure 2-6). Slo wly push the module
into the slot until it seats in the backplane connectors. It may be
necessary to pull out (not remove) the retaining screws in order to
seat the device securely in the connectors.
Seat the module by
pushing in the
extraction levers
Extraction
Levers
Slide the module
into the mainframe
until it plugs into the
backplane connectors
Figure 2-6. Installing the HP E8491B in the VXI Mainframe.
3. Tighten the retaining screws on the top and bottom of the module.
Connecting the HP E8491B to the Host Adapter
4. Connect the interface cable from the host adapter to E8491B port A,
B, or C. The ports are identical and unused ports are available to
connect additional E8491Bs and other IEEE 1394 devices in a
daisy-chain or tree configuration (Figure 2-7). Notice that there can
18 Interface Installation and Configuration Chapter 2
be no closed loops.
DAISY-CHAIN CONFIGURATION
PC
VXI
VXI
TREE CONFIGURAT ION
PC
VXI
VXI VXI
*
VXI
A second connection creates a closed loop and is not a llowed
*
Figure 2-7. IEEE 1394 Interface Configurations.
I/O performance is impacted slightly by the hardware configuration.The
VXI mainframe with the fewest number of hops (cable links) to the PC has
the highest priority. However, each mainframe has equal access to the bus
during each data transfer interval.
VXI
Note Refer to Chapter 4: IEEE 1394 Fundamentals and Interface Overview for
information on the topology and terms associated with the IEEE 1394 bus.
Alternate Configurations Certain applications may include the HP E1406A Command Module as an
HP-IB interface to selected instruments. In this configuration, the E8491B
must be the resource manager since its logical address is always 0. It is
generally installed in mainframe slot 0 so that it also provides the system’s
slot 0 functionality.
If you want the E1406 to provide slot 0 functio nality in addition to providing
an HP-IB in terface, set its config uration as follows:
1. Set the E1406 logical address to a value other than 0.
2. Set the Slot 0 and System Controller switches to “Enable” (default).
3. Set the CLK 10 source to “Internal” (default).
4. Set the VME BTO Disable switch to 0 - Enable (default). Set VME
Interface Installation and Configuration 19Chapter 2
Bus Timeout (BTO) on the E8491B to ‘Off’ (see “Editing the
HP E8491B Configuration” later in this chapter).
5. Set the E1406 servant area to include the logical addresses of those
instruments it is to contro l. Note:
E1406 servant area = (E1406 logical address + 1) through
(E1406 logical address + servant area switch setting)
6. Install the E1406 in slot 0.
If the E1406 is not the slot 0 device , its slot 0 function ality must be disabled.
From step 2 above, set the E1406A Slot 0 and System Controller switches
to “Disable”. From step 4, set its VME BTO Disable switch 1 and ens ure that
VME Bus Timeout (BTO) on the E8491B is set to ‘On’.
If you are using the E8491B in a configuration with multiple mainframes
linked with VXI-MXI extender cards, the E8491B must be the resource
manager; however, VME Bus Timeout (BTO) must be disabled (off - Step
4 above). Again, the E8491B is generally installed in mainframe slot 0 so
that it also provides the system’s slot 0 functionality. Refer to the MXI
documentation for configuration guidelines based on where the E8491B is
installed.
Where to go Next •If you are installing the IEEE 1394 interface for the first time:
Continue with “Step 3: Installing VXI Instruments.”
•If your VXI instruments are already installed:
Proceed to “Step 4: Installing the HP I/ O Libraries.”
Step 3: Installing
VXI Instruments
Generally, any VXI instr ument can be in stalled in any s lot other t han slot 0.
When installing inst ruments, no tice that th e E8491B and the IEEE 1394 bus
do not extend the (VXI) backplane between frames in multi-frame VXI
systems (MXI cards are required). This means that the multimeter and
multiplexers in a VXI scanning multimeter for example, must be installed in
the same mainframe ( in adj ac ent sl ot s). Devices sharing th e VXI Local bus
must also be installed in the same mainframe.
20 Interface Installation and Configuration Chapter 2
Installing C-size
retaining
screws
slide the module
into the mainframe
until it plugs into the
backplane connectors
Instruments
extraction
levers
Figure 2-8 shows the installation of C-size instruments.
seat the module by
pushing in the
extraction levers
Figure 2-8. Installing C-size Instruments.
Caution To prevent damage to the VXI instruments being installed,
remove power from the mainframe or set the power switch to
Off or Standby before installing the instruments.
1. Insert the instrument in to the mainframe by aligning the instrument
with the card guides inside the mainframe. Slowly pus h the instrument into the slot until i t se at s in the backplane connector s. The fro nt
panel of the instrument should be even with the front edges of the
mainframe.
2. Tighten the retaining screws on the top and bottom of the module.
WARNING All instruments within the VXI mainframe are gr ounded thro ugh
the mainframe chassis. During insta llation, tighten the
instruments’ retaining screws to secure the instrument to the
mainframe and to make the ground connection.
Interface Installation and Configuration 21Chapter 2
Installing A- and B-size
Instruments
Caution To prevent damage to the VXI instruments, install the
A- and B-size instruments can also be installed in the mainframe. These
instruments are installed using a module carrier:
•HP E1403C A/B-size Module Carrier extends the P1 connector on
the VXIbus backplane and mounts the (A/B-size) modules flush with
C-size modules. This carrier is recommended for Hewlett-Packard
B-size, slave-only devices which have the P1 connector.
•HP E1407A A/B Module Carrier extends the P1and P2 connectors
on the VXIbus backplane. This carrier is recommended for B-size,
slave-only devices which have the P1/P2 connectors.
instruments when the mainframe is turned off.
Figure 2-9 shows the installation of a B-size instrument using a module
carrier. The procedure is described in the following three steps.
1. Install the HP E1403 or E1407 A/B-size Module Carrier into the
mainframe. This is do ne b y aligni ng the top an d bo ttom of t he carrier
with the card guides and slowly pushing the carrier into the
mainframe. The front of the carrier should be even with the front
edges of the mainframe.
2. Slide the A- or B-size instrument into the carrier until it connects.
3. Tighten the retaining screws on the top and bottom of the instrument.
WARNING All instruments within the VXI mainframe are gr ounded thro ugh
the mainframe chassis. During insta llation, tighten the
instruments’ retaining screws to secure the instrument to the
mainframe and to make the ground connection.
22 Interface Installation and Configuration Chapter 2
Figure 2-9. Installing A- and B-size VXI Instruments.
Interface Installation and Configuration 23Chapter 2
Step 4: Installing
the HP I/O Libraries
Note Refer to Chapter 4: IEEE 1394 Fundamentals and Interface Overview for
Note If your PC indicates that new hardware has been found after applying
The HP I/O Libraries CD contains the software required to use the IEEE
1394 interface in a VXI system. It also incl ude s the OHCI- compa ti ble host
adapter dri vers.
more information on the HP I /O Libraries and related software.
power, do the following:
a. Select “Driver fro m dis k pr ovi ded by hardware manufactur er ”-Pr es s OK.
b. Insert the I/O Libraries CD in your CD ROM drive.
c. Point or browse to the drive letter for the CD ROM. Press OK.
d. You will be instructed to insta ll the driver th at matches the hardware.
Begin by performing the following steps.
1. Apply power to your PC. Close all open applications and insert the
I/O Libraries CD into your PC CD-ROM drive. Inserting the CD
automatica lly activates the installer. If the installer does not activate,
select Start / Run and type <drive>:SETUP.EXE where <drive>
designates the CD drive. Do not apply power to the VXI mainframe.
Configuring the
HP E8491B Interconnect
2. Review the information and license agreements presented at the
beginning of the installation process.
3. Continue through the installation process as directed by the installer.
Be sure to indicate that you want HP I/O Libraries support fo r the
E8491B interface installed by clicking on the box next to “Install
HP E8491 VXI Components.”
4. Read the Readme.txt file i f you choose then sele ct “Do not conf igur e
the interfaces at this t ime” in the next window.
5. After the installation is complete, re-start the computer.
1. Connect the IEEE 1394 i nter face cable bet ween t he hos t ada pte r (PC)
and one of the IEEE 1394 ports on the E8491B front panel.
2. Turn on the VXI mainframe.
3. From the HP I/O Libraries program group created when the libraries
were installed (Start >> Pr ograms >> HP I_O Libraries), click on
‘I_O Config’ (Figure 2-10).
24 Interface Installation and Configuration Chapter 2
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