HP AHA-8940, IEEE 1394, E8491A User Manual
Contents
HP E8491A IEEE 1394 PC Link to VXI Configuration and User’s Guide
Edition 1
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 E8491A PC Link to VXI Interconnect ............................................11
The Adaptec® AHA-8940 1394-to-PCI 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 E8491A 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 E8491A Interconnect ..................................................17
Alternate Configurations ..............................................................................19
Where to go Next ..........................................................................................20
Step 3: Insta lling VXI Instruments ......................................................................20
Installing C-size Instruments ........................................................................20
Installing A- and B-size Instruments ............................................................22
Step 4: Installing the HP I_O Libraries ...............................................................24
Configuring the HP E8491A Interconnect ...................................................25
Editing the HP E8491A Configuration .........................................................27
Editing the HP E8491A Configuration on Windows 95 Platforms .............. 28
Step 5: Installing the 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
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 E8491A Triggering .......................................................................................43
Using Triggers ......................................................................................... .....43
Configuring the E8491A Trig In and Trig Out Ports ...................................44
Triggering Example ......................................................................................45
Trigger Pull Up .............................................................................................47
Using HP E8491A Shared Memory ....................................................................47
Locating E8491A 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
The Adaptec® AHA-8940 Host Adapter and Interface Cable ............................61
The HP E8491A PC to VXI Interconnect ...........................................................62
Using the HP E8491A 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 E8491A 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 E8491A I E E E 1394 PC LINK to VXI
DURATION OF WARRANTY:
3 years
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
FITNESS FOR A PARTICULAR PURPOSE.
8. HP will be liable for damage to tangible property per incident up to the greater of $300,000 or the actual amount paid for the product
that is the subject of the claim, an d for damages for bodily injury or death , to the extent that all such damag es are determined by a court
of competent jurisdiction to have been directly caused by a defective HP product.
9. TO THE EXTENT ALLOWED BY LOCAL LAW, THE REMEDIES IN THIS WARRANTY STATEMENT ARE CUSTOMER’S
SOLE AND EXLUSIVE REMEDIES. EXCEPT AS INDICATED ABOVE, IN NO EVENT WILL HP OR ITS SUPPLIERS BE
LIABLE FOR LOSS OF DATA OR FOR DIRECT, SP ECIAL, INCIDENTAL, CONSEQUENTIAL (INCLUDING LOST PROFIT OR
DATA), OR OTHER DAMAGE, WHETHER BASED IN CONTRACT, TORT, OR OTHERWISE.
FOR CONSUMER TRANSACTIONS IN AUSTRALIA AND NEW ZEALAND: THE WARRANTY TERMS CONTAINED IN THIS
STATEMENT, EXCEPT TO THE EXTENT LAW FULLY PERM ITTED, DO NOT EXCLUDE, RESTRICT OR MODIFY AND AR E
IN ADDITION TO THE MANDATORY STATUTORY RIGHTS APPLICABLE TO THE SALE OF THIS PRODUCT TO YOU.
U.S. Government Restricted Rights
T
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
1995), as a "commercial item" as defined in FAR 2.101(a), or a s "R estricted 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 t he applicable FAR or DFARS clause or the HP standard software agreement for the p r oduct involved.
HP E8491A IEEE 1394 PC Link to VXI Configuration and User’s Guide
Copyright © 1998 Hewlett-Packard Company. All Rights Reserved.
Edition 1
5
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
Safety Symbols
Instruction manual symbol affixed to
Instruction manual symbol affixed to
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.
or
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.
DO NOT operate damaged equipmen t: 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 pr oduct until
safe operation can be verified by service-trained personnel. If necessary, return the product to a Hewlett-Packard Sales and Service Office
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: Becaus e of th e dang er of introd ucing addition al haz ards, do not i nstall subst itute pa rts
or perform any unauthorized modification to the product. Return the product to a Hewlett-Packard Sales and Service Office for service
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 E8491A
Product Options: All
conforms to the following Product Specifications:
Safety: IEC 1010-1 (1990) Incl. Amend 1 (1992)/EN61010-1 (1993)
CSA C22.2 #1010.1 (1992)
UL 3111-1 (1994)
EMC: CISPR 11:1990/EN55011 (1991): Group1 Class A
IEC 801-2:1991/EN50082-1 (1992): 4kVCD, 8kVAD
IEC 801-3:1984/EN50082-1 (1992): 3 V/m
IEC 801-4:1988/EN50082-1 (1992): 1kV Power Line
.5kV Signal Lines
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.
June, 1998
European contact: Your local Hewlett-Packard Sales and Service Office or Hewlett-Packard GmbH, Depart-
ment HQ-TRE, Herrenberger Straße 130, D-71034 Böblingen, Germany (FAX +49-7031-14-3143)
Jim White, QA Manager
7
Notes:
8
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ease fold and tape for ma
ili
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Reader Comment Sheet
HP E8491A IEEE 1394 PC Link to VXI Configuration and User’s Guide
Edition 1
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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:
•HP E8491A PC Link to VXI Interconnect
•Adaptec
®
AHA-8940 1394-to-PCI Host Adapter
•HP I_O Libraries
The HP E8491A PC Link
to VXI Interconnect
The Adaptec® AHA-8940
1394-to-PCI Host Adapter
The HP I_O Libraries The HP I_O Libraries provide the HP VISA and HP SICL drivers required
Using this Manual This manual is organize d to hel p you ins tall , confi gure, an d begin u sing th e
The HP E8491A is the VXI hardware that links the VXI mainframe
backplane to the IEEE 1394 serial bus. The E8491A is a 1-slot, C-size,
message-based device that is installed in mainframe slot 0.
The Adaptec® AHA-8940 1394-to-PCI Ho st Adapter card is install ed in the
PC and links the computer’s (PCI) backplane to the IEEE 1394 bus. The
AHA-8940 has one internal and two external IEEE 1394 ports and can
support up to 16 HP E8491As.
to use the HP E8491A. Included with the libraries are the drivers for the
Adaptec
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.
®
AHA-8940 host adapter.
Chapter 2: Interface
Installation and
Configuration
This chapter contains information on installing the HP E8491A 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 E8491A and IEEE 1394 serial bus.
The chapter contains information on optimizing system performance using
block data transfers , and also covers triggering and using HP E8491A shared
memory.
Chapter 4: IEEE 1394
Fundamentals and
Interface Overview
Appendix A:
Specifications
Appendix B: Editing the
HP E8491A Resource
Manager Configuration
Additional
Information
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 E8491A.
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 E8491A i s through HP VISA and HP SICL functi ons.
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 conf igure the HP E8491A and has a help file associated with
it.
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 adapter (if req uired) and the HP E849 1A interconnect. The
installation sequ ence and other top ics covered in th is chapte r are as follows :
• Step 1: Installing the IEEE 1394 Host Adapter . . . . . . . . . . 13
• Step 2: Installing the HP E8491A Interconnect . . . . . . . . . . 18
• Step 3: Installing VXI Instruments . . . . . . . . . . . . . . . . . . . . 22
• Step 4: Installing the HP I_O Libraries. . . . . . . . . . . . . . . . . 26
• Step 5: Installing HP VXIplug&play Instrument Drivers. . . 30
• Step6: Verifying the Installation . . . . . . . . . . . . . . . . . . . . . . 31
• Running the Resource Manager . . . . . . . . . . . . . . . . . . . . . . 35
Step 1: Installing
the IEEE 1394
Host Adapter
Note If your personal computer (PC) c urr ently has an Adaptec
The IEEE 1394 adapter shipped as Option 001 to the HP E8491A is the
Adaptec
is a cable for powering 1394 devices and a 4.5m interface cable.
adapter or built-in IEEE-1394 port, proceed to Step 2: Installing the HP
E8491 Interconnect.
The layout of the Adaptec
®
AHA-8940 1394-to-PCI Host Adapte r. Included with the adapter
®
IEEE-1394 host
®
host adapter is shown in Figure 2-1.
Interface Installation and Configuration 13Chapter 2
External
IEEE 1394
connectors
Figure 2-1. Layout of the Adaptec® AHA-8940 1394-to-PCI Host Adapter.
12 VDC power connector
Internal IEEE 1394 connector
WARNING Turn off and disconnect the power t o your computer and to any
peripheral devices before installing the host adapter.
A. Remove the computer chas sis cove r to expo se the e xpansion s lots and
external access covers.
B. 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.
C. 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
D. Align the bus contacts on the bottom 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.
E. 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
F. Connect the power c abl e b etwe en the adapter and th e 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 Adaptec
®
host adapter is
capable of supplying 12V with a maximum current draw of 1.5 amps.
16 Interface Installation and Configuration Chapter 2
power in
(from system power supply)
power out
(to disk drives)
host adapter
12V DC power connector
Figure 2-5. Connecting the Power Cable Between the PC and the Host Adapter.
G. Replace the computer cover. Connect one end of the int erface c able to
either of the adapter’s external connectors. You can now turn on the
PC.
Note When power is applied, Windows 95 operating systems may detect the
Adaptec
Ignore this message as the .inf file is installed when the HP I_O Libraries
are installed (Step 4).
®
card and indicate that it cannot locate an associated .inf file.
Note Refer to Chapter 4: IEEE 1394 Fundamentals and Interface Overview for
more informati on on the Adaptec® host adapter.
Where to go Next If you are installing the IEEE 13 94 interface for the first time, continue with
“Step 2: Installing the HP E8491A Interconnect.” If the E8491A and your
VXI instruments are already installed, proceed to “Step 4: Installing the
HP I_O Libraries.” Notice that the HP I_O Libraries contain the Adaptec
host adapter drivers.
Step 2: Installing
the HP E8491A
The HP E8491A interconnect links the IEEE 1394 bus to the backplane of
the VXI mainframe. The E8491A is a C-size device with VXI Resource
Manager and Slot 0 capability.
Interconnect
There are no configuration switches on the E8491A. 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 E8491A is normally, but not required to be,
installed in mainframe slot 0.
®
Interface Installation and Configuration 17Chapter 2
Note Refer to “Alternate Configurations” for information on using the E8491A
with the HP E1406 Command Module and using it in VXI-MXI systems.
A. If turned on, turn off the VXI mainframe and disconnect all power
sources that may be applied to any instruments.
B. Insert the E8491A into mainframe slot 0 by aligning the module 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
retaining
screws
slide the module
into the mainframe
until it plugs into the
backplane connectors
Figure 2-6. Installing the HP E8491A in the VXI Mainframe.
18 Interface Installation and Configuration Chapter 2
C. Tighten the retaining screws on the top and bottom of the module.
Connecting the HP E8491A to the Host Adapter
D. Connect the interface cable from the host adapter to E8491A port A,
B, or C. The ports are identical and unused ports are available to
connect additional E8491As and other IEEE 1394 devices in a
daisy-chain or tree configuration (Figure 2-7). Notice that there can
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 E8491A
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.
Interface Installation and Configuration 19Chapter 2
If you want the E1406 to pr ovide slot 0 functiona lity in addition t o providing
an HP-IB interface, set its configuration 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 VM E BTO Disable swi tch to 0 - Enable (default). Set VME
Bus Timeout (BTO) on the E8491A to ‘Off’ (see “Editing the
HP E8491A 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 E8491A is set to ‘On’.
If you are using the E8491A in a configuration with multiple mainframes
linked with MXI extend er cards, the E849 1A must be the resource manager;
however, VME Bus Timeout (BTO) must be disabled (off - Step 4 above).
Again, the E8491A is generally installed in mainframe slot 0 so that it also
provides the system’s slo t 0 funct ionali ty. Refe r to the MXI docu mentati on
for configuration guidelines based on where the E8491A is installed.
Where to go Next If you are installing the IEEE 1394 interface and your VXI system for the
first time, continue with “Step 3: Installing VXI Instruments.” If your VXI
instruments are already installed, proceed t o “Step 4: Installing the HP I_O
Libraries.”
Step 3: Installing
VXI Instruments
Installing C-size
Generally, any VXI instr ument can be in stalled in any s lot other t han slot 0.
When installing instru ments, notice that th e E8491A 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.
Figure 2-8 shows the installation of C-size instruments.
Instruments
20 Interface Installation and Configuration Chapter 2
retaining
screws
extraction
levers
seat the module by
pushing in the
extraction levers
slide the module
into the mainframe
until it plugs into the
backplane co nnectors
Figure 2-8. Installing C-size Instruments.
Caution To prevent damage to the VXI instruments, install the
instruments when the mainframe is turned off.
A. Insert the instrument into the mainframe by aligning the instrument
with the card guides inside the mainframe. Slowly push the
instrument into t he slot unti l it sea ts in the backplane connector s. The
front panel of the instrument should be even with the front edges of
the mainfram e.
B. Tighten the retaining screws on the top and bottom of the module.
Interface Installation and Configuration 21Chapter 2
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.
Installing A- and B-size
Instruments
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.
Figure 2-9 shows the installation of A- and B-size instruments.
22 Interface Installation and Configuration Chapter 2
Figure 2-9. Installing A- and B-size VXI Instruments.
Interface Installation and Configuration 23Chapter 2
Caution To prevent damage to the VXI instruments, install the
instruments when the mainframe is turned off.
A. Install the HP E1403 A/B-size Module Carrier or the HP E1407
A/B-size Module Carrier into the mainframe. This is done by
aligning the top and bottom of the carrier with the card guides and
slowly pushing the carrier into the mainframe. The fro nt of the
carrier should be even with the front edges of the mainframe.
B. Slide the A- or B-size instrument into the carrier until it connects.
C. 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.
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, select “do not
The software required to use the IEEE 1394 interface in a VXI system,
including the Adaptec
Libraries CD.
more information on the HP I_O Libraries and related software.
A. Turn on the PC if you have not already done so. Close all open
applications and insert the I_O libraries CD into your PC CD-ROM
drive. Inserting the CD automatically activates the installer. If the
installer is not activated, select Start / Run and type
<drive>:SETUP.EXE. Do not turn on the VXI mainframe.
install a driver.” The Adaptec
I_O libraries installer program.
B. Review the information and license agreements presented at the
beginning of the installation process.
®
host adapter drivers, is contained on the HP I_O
®
host adapter drivers are installed with the
C. Continue through the installation process as directed by the installer.
Be sure to indicate that you want HP I_O Libraries support for the
E8491A interface installed by clicking on the box next to “Install
HP E8491 VXI Components.” Do not configur e the interfac e at this
time.
24 Interface Installation and Configuration Chapter 2
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