Agilent Technologies
E1460A 64-Channel
Relay Multiplexer Module
User’s Manual
*E1460-90006*
Manual Part Number: E1460-90006
Printed in U.S.A. E0101
Contents
E1460A Relay Multiplexer User’s Manual
AGILENT TECHNOLOGIES WARRANTY STATEMENT ............................................7
Safety Symbols............................................................................................................8
WARNINGS.................................................................................................................8
Chapter 1
Getting Started ............................................................................................................11
Using This Chapter ....................................................................................................11
Multiplexer Description...............................................................................................11
Multiplexer Components .....................................................................................11
Channel Relay Sw itches .....................................................................................12
Control Relays ....................................................................................................13
Basic Operating Modes ......................................................................................14
Configuring the Multiplexer........................................................................................15
Warnings and Cautions ......................................................................................15
Setting the Logical Address Switch ....................................................................16
Setting the Status Register Switch .....................................................................17
Setting the Interrupt Priority ................................................................................ 17
Configuring the Switch Card Wire Jumpers ........................................................18
Installing the Multiplexer in a M ainframe ............................................................21
Connecting the A nalog Bus ................................................................................22
Configuring Terminal Modules....................................................................................23
Standard Terminal Mo dule Desc r iption ...............................................................23
Terminal Module Option A3E Description ...........................................................23
Connecting User I nputs ......................................................................................25
Wiring Terminal Modules ....................................................................................26
Attaching Terminal Modules to the Multiplexer ...................................................28
Programming the Multiplexer.....................................................................................29
Checking SCPI Drivers .......................................................................................29
Multiplexer Addressing .......................................................................................30
Initial Operation ...................................................................................................34
Chapter 2
Using the Relay Multiplexer .......................................................................................35
Using This Chapter ....................................................................................................35
Multiplexer Commands/States................................................................................... 35
Switching Channels ...................................................................................................37
Switching Channels Comments .......................................................................... 37
Switching Channels Examples ...........................................................................38
Scanning Channels ....................................................................................................43
Scanning Channels Comments ..........................................................................43
Scanning Channels Examples ............................................................................44
Miscellaneous Multiplexer Functions .........................................................................51
Using the Scan Complete Bit ..............................................................................51
Using the Analog Bus .........................................................................................52
Saving and Recalling States ...............................................................................56
Detecting Error Conditions .................................................................................56
Synchronizing the M ultiplexer ............................................................................. 58
3
Chapter 3
Relay Multiplexer Command Refer ence ...................................................................59
About This Chapter ...................................................................................................59
Command Types ....................................................................................................... 59
Common Commands Format .............................................................................59
SCPI Commands Format ................................................................................... 59
Linking Commands .............................................................................................61
SCPI Commands Reference .....................................................................................61
ABORt ........................................................................................................................62
ARM...........................................................................................................................63
ARM:COUNt .......................................................................................................63
ARM:COUNt? .....................................................................................................64
INITiate.......................................................................................................................65
INITiate:CONTinous ........................................................................................... 65
INITiate:CONTinuous? .......................................................................................66
INITiate[:IMMediate] ...........................................................................................66
OUTPut...................................................................................................................... 68
OUTPut:ECLTrgn[:STATe] ..................................................................................68
OUTPut:ECLTrgn[:STATe]? ................................................................................ 69
OUTPut[:EXTernal][:STATe] ................................................................................69
OUTPut[:EXTernal][:STATe]? ..............................................................................70
OUTPut:TTLTrgn[:STATe] ...................................................................................70
OUTPut:TTLTrgn[:STATe]? .................................................................................71
[ROUTe:] .................................................................................................................... 72
[ROUTe:]CLOSe .................................................................................................72
[ROUTe:]CLOSe? ............................................................................................... 74
[ROUTe:]FUNCtion .............................................................................................75
[ROUTe:]FUNCtion? ...........................................................................................76
[ROUTe:]OPEN ...................................................................................................77
[ROUTe:]OPEN? .................................................................................................79
[ROUTe:]SCAN ...................................................................................................79
[ROUTe:]SCAN:MODE ....................................................................................... 80
[ROUTe:]SCAN:MODE? .....................................................................................82
[ROUTe:]SCAN:PORT ........................................................................................ 82
[ROUTe:]SCAN:PORT? ......................................................................................83
STATus....................................................................................................................... 84
STATus:OPERation:CONDition? ........................................................................86
STATus:OPERation:ENABle ...............................................................................86
STATus:OPERation:ENABle? ............................................................................. 86
STATus:OPERation[:EVENt]? ............................................................................ 87
STATus:PRESet .................................................................................................87
SYSTem .....................................................................................................................88
SYSTem:CDEScription? .....................................................................................88
SYSTem:CPON .................................................................................................. 89
SYSTem:CTYPe? ............................................................................................... 89
SYSTem:ERRor? ................................................................................................90
TRIGger.....................................................................................................................91
TRIGger[:IMMediate] ..........................................................................................91
TRIGger:SLOPe .................................................................................................92
TRIGger:SLOPe? ...............................................................................................92
TRIGger:SOURce ............................................................................................... 92
TRIGger:SOURce? .............................................................................................94
4
IEEE 488.2 Common Commands Reference ...........................................................95
SCPI Commands Qu ick Reference............................................................................96
Appendix A
Relay Multiplexer Specific ations ...............................................................................97
Appendix B
Register-Based Programming ...................................................................................99
About This Appendix..................................................................................................99
Register Addressing...................................................................................................99
The Base Address ..............................................................................................99
Register De scriptions...............................................................................................102
The WRITE Registers .......................................................................................102
The READ Registers ........................................................................................102
Status/Control Register .....................................................................................103
ID and Device Type Registers ..........................................................................104
Relay Control Registers ....................................................................................104
Programming Examples........................................................................................... 1 07
Appendix C
Relay M ultiplexer Error M essages ..........................................................................1 15
Index .............................................................................................................................117
5
Notes:
6
AGILENT TECHNOLOGIES WARRANTY STATEMENT
AGILENT PRODUCT: E1460A 64-ChannelRelay MultiplexerModule DURATION OF WARRANTY: 3years
1. AgilentTechnologiesw arrants Agilenthardware, accessoriesand supplies againstdefects in materials and workmanshipfor the period
specified above. If Agilent receives notice of such defects during the warranty period, Agilent will, at its option, either repair or replace
products which prove to be defective. Replacement products may be either new or like-new.
2. Agilent warrants that Agilent software will not fail to execute its programming instructions, for the period specified above, due to
defects in material and workmanship when properly installed and used. If Agilent receives notice of such defects during the warranty
period, Agilent will replacesoftwaremedia which does not execute its programming instructions due to such defects.
3.Agilentdoesnotwarrantthat the operationof Agilentproductswillbe interruptedor errorfree. IfAgilentis unable, withina reasonable
time,to repair or replace any product to a conditionas warranted,customer will be entitledto a refund of the purchase price upon prompt
return of the product.
4. Agilent products may contain remanufactured parts equivalent to new in performance or may have been subject to incidental use.
5. The warrantyperiodbeginson the date of deliveryor on the date of installation if installedby Agilent. Ifcustomer schedules or delays
Agilentinstallation more than 30 days after delivery, warranty begins on the 31st day from delivery.
6.Warranty doesnot apply to defectsresultingfrom(a) improperor inadequatemaintenanceor calibration, (b) software,interfacing,parts
or supplies not supplied by Agilent, (c) unauthorizedmodification or misuse, (d) operation outside of the publishedenvironmental
specifications for the product, or (e) impropersite 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 AGILENT
SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OR CONDITIONS OF MERCHANTABILITY, SATISFACTORY
QUALITY, AND FITNESS FOR A PARTICULAR PURPOSE.
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that is the subjectof the claim, and for damages for bodily injury or death, to the extent that all such damages are determined by a court
of competent jurisdiction to have been directly caused by a defective Agilent product.
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SOLE AND EXLUSIVE REMEDIES. EXCEPTAS INDICATED ABOVE, IN NO EVENT WILL AGI LENT OR ITS SUPPLIERS BE
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FOR CONSUMER TRANSACTIONS I N AUSTRALIA AND NEW ZEALAND: THE WARRANTY TERMS CONTAINED IN THIS
STATEMENT, EXCEPT TO THE EXTENT LAWFULLY PERMITTED, DO NOT EXCLUDE, RESTRICT OR MODIFY AND ARE
IN ADDITION TO THE M ANDATORY STATUTORY RI GHTS APPLICABLE TO THE SALE OF THIS PRODUCT TO YOU.
U.S. G overnment Restricted Right s
The Software and Documentationhave been developedentirelyat private expense.They are delivered and licensed as "commercial
computersoftware" 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 definedin FAR 2.101(a), or as "Restricted computer software" as defined in FAR 52.227-19 (Jun
1987)(or any equivalent agency regulationor contract clause), whichever is applicable. You have only those rights provided for such
Software and Documentation by the applicable FAR or DFARS clause or the Agilent standard software agreement for the product
involved.
E1460A 64-Channel Relay MultiplexerModule User’s M anual
Copyright © 1990, 1992-1995, 2001 Agilent Technologies, Inc. All rights reserved.
Edition 6
7
Documentation History
All Editions and Updates of this manual and their creation date are listed below. The first Editionof the m anual is Edition 1. The Edition
number incrementsby 1 whenever the manual is revised. Updates,which are issued between Editions, contain replacement pages to
correct or add additional information to the current Edition of the manual. Whenever a new Edition is created, it will contain all of the
Update information for the previous Edition. Each new Edition or Update also includes a revised copy of this documentation history page.
Edition1 ............................................January, 1990
Edition2 ...............................................July,1992
Edition3 .............................................August,1993
Edition4 ............................................October,1994
Edition5 ..........................................November,1995
Edition6 ............................................January,2001
Safety Symbols
Instruction manual symbol affixed to
Instruction manual symbol affixed to
product. Indicatesthatthe user must refer to
product. Indicatesthatthe user must refer to
the manual for specific WARNING or
the manual for specific WARNING or
CAUTION information to avoid personal
CAUTION information to avoid personal
injury or damage to the product.
injury or damage to the product.
Indicates the field wiring terminalthat must
be connected to earth ground before
operating the equipment— protectsagainst
electrical shock in case of fault.
WARNING
Alternating current(AC)
Direct current (DC).
Warning. Risk of electrical shock.
Calls attention to a procedure, practice, or
conditionthat could cause bodily injury or
death.
or
Frameorchassisgroundterminal—typically
connects to the equipment's metal frame.
CAUTION
Calls attention to a procedure, practice, or
conditiont hat couldpossiblycausedamageto
equipmentor permanent loss of data.
WARNINGS
The following general safety precautions must be observed during all phases of operation, service, and repair of this product. Failure to
complywith these precautionsor with specific warnings elsewhere in this manual violates safety standards of design, manufacture, and
intendeduse of the product. Agilent Technologies assumes no liability for the c ustomer'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 terminalsor suppliedpower cable.
DO NOT operate the product in an explosive atmosphere or in the presence of flammablegases or fumes.
For continued protectionagainstfire,replacethe 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. Proceduresinvolving the removal of
covers or shields are for use by service-trained personnel only. Under certain conditions, dangerousvoltages may exist even with the
equipment switchedoff. To avoid dangerouselectricalshock, DO NOTperformprocedures involvingcover or shield removal unlessyou
are qualified to do so.
DO NOT operate damaged equipment: Whenever it is possiblethat the safety protection features built into this product have been
impaired,either through physical damage, excessive moisture,or any other reason, REMOVE POWER and do not use the product until
safeoperation can be verified by service-trained personnel.If necessary, return the productto Agilentfor serviceand repairto ensurethat
safety features are maintained.
DO NOT serviceor adjustalone: Do not attempt internalservice or adjustment unlessanother person,capableof rendering first aid and
resuscitation, is present.
DO NOT substitute parts or modify equipment: Becauseof the danger of introducingadditional hazards,do not install substituteparts
orperform any unauthorizedmodificationto the product.Return the product to Agilentfor service and repairtoensurethat safety features
are maintained.
8
DECLARATION OF CONFORMITY
According to ISO/IEC Guide 22 and CEN/CENELEC EN 45014
Manufacturer’s Name: Agilent Technologies, Inc.
Manufacturer’s Address: Basic, Emerging and Systems Technologies Product Generat ion Unit
815 14
Loveland, CO 80537 USA
Declares, that the product
Product Name: 64-Channel Relay Multiplexer Module
Model Number: E1460A
Product Options: This dec laration includes all options of the above product(s).
Conforms with the fol l owing European Directives:
The product herewithcomplieswith the requirementsof the Low Voltage Directive 73/23/EECand the EMC Directive 89/336/EEC
and carries the CE Marking accordingly.
Conforms with the following product standards:
EMC Standard Limit
IEC 61326-1:1997 + A1:1998 / EN 61326-1:1997 + A1:1998
CISPR11:1997 + A1:1997 / EN 55011-1991 Group 1, Class A
IEC 61000-4-2:1995+A1998 / EN 61000-4-2:1995 4 kV CD, 8 kV AD
IEC 61000-4-3:1995 / EN 61000-4-3:1995 3 V/m, 80-1000 MHz
IEC 61000-4-4:1995/ EN 61000-4-4:1995 0.5 kV signallines,1 kV power lines
IEC 61000-4-5:1995 / EN 61000-4-5:1995 0.5 kV line-line, 1 kV line-ground
IEC 61000-4-6:1996/ EN 61000-4-6:1996 3 V, 0.15-80 MHz
IEC 61000-4-11:1994/ EN 61000-4-11:1994 1 cycle, 100%
th
Street S.W.
[1]
Canada:ICES-001:1998
Australia/New Zealand: AS/NZS 2064.1
Safety IEC 61010-1:1990+A1:1992+A2:1995 / EN 61010-1:1993+A2:1995
Canada: CSA C22.2 No. 1010.1:1992
UL 3111-1
Supplemental Information:
[1] The product was tested in a typical configuration with Agilent Technologies test systems.
September 5, 2000
Date Name
Quality Manager
Title
AuthorizedEU-representative: AgilentTechnologiesDeutschlandGmbH, Herrenberger Straβe 130, D 71034 Böblingen, Germany
For further information, pleasecontactyour local Agilent Technologiessales office,agentor distributor.
Revision: A.03 Issue Date: 09/05/00
9
Notes:
10
Using This Chapter
This c hapt er des cribes the E1460A 6 4-Channel Relay Multiplexer module,
shows how to connect external wiring, and shows how to get started
programming the module using Standard Commands for Programmable
Instruments (SCPI). This chapter includes:
• MultiplexerDescription...............................11
• ConfiguringtheMultiplexer............................15
• Configurin g Terminal Modules . . .......................23
• ProgrammingtheMultiplexer..........................29
Multiplexer Description
The E 1460A is a VXIbus C-Size register-based product that provides
switching (multiplexing) of up to 64 two-wire channels. Switching consists
of connecting a channel’s HI and/or LO line to COM in that bank. The
multiplexer can operate in a C-Size VXIbus mainfram e using a comm and
module (such as an E1406A Command M odule).
Chapter 1
Getting Started
Multiplexer
Components
The E 1460A 64-Channel Relay Multiplexer module cons ists of a relay
switch card and a sta ndard screw-typeterminalmodule. The E1460A is also
available with Option A3E that provides a crim p-and-insert terminal housing
andconne ctors. Various configurations canbe set byprogramming (closing)
certain switch card relays, and/or selection of wire jumpers on the relay
switch card and termina l module.
The E1460A is used when high switch densities such as wire harness/cable
testing, semiconductor testing, and/or printed-circuit board t es ting is
required. Although it is primarily a dual 32-channel two-wire multiplexer,
themodulecan be configured to perform one-wire, two-wire, three-wire, and
four-wire func tions.
By us ing switch card wire jumpers, the banks can be changed from 1x32
to groups of 1x16 or 1x8. See "Configuring the Switch Card Wire J umpers"
for m ore informat ion.
For a SCPI en vironment, one or more multiplexer mod ules ca n be defined
as a switchbox or as a scanning multimeter. For a switchbo x configuration,
all m ultiplexer channels within the instrument ca n be addres sed usin g a
single interface addres s . For a scanning multimeter configuration, both the
multimeter and all multiplexer modules within the instrument can be
addressed using a single interf ace address.
Chapter 1
Getting Started 11
Channel Relay
Switches
The c hannel relay switches are separated into eight banks. Each bank has
eight switchable channels and a COM channel. Each channel has a
separate HI (H) and LO (L) line. See Figure 1-1 for a block diagram.
SWITCHCARD TERMINAL CARD
CH 0992
CH 0994
OPEN
CLOSED
CH 0990
OPEN
CLOSED
CH 0991
JM1
CH 0995
JM2 JM3
JM10
JM11
H
COM
L
H
CH 0
L
BANK 0
H
CH 7
L
H
COM
L
H
CH 0
L
BANK 1
H
CH 7
L
H
COM
L
H
CH 0
L
BANK 2
H
CH 7
JM13JM12
L
H
COM
L
H
CH 0
L
H
CH 7
L
CABLE T
1W LO REF
H1(1W HI COM)
L1(1W LO COM)
H1
L1
G
ANALOG BUS
BANK 3
H2
L2
G
H
COM
L
H
CH 0
L
H
CH 7
L
H
COM
L
H
CH 0
L
H
CH 7
L
H
COM
L
H
CH 0
L
H
CH 7
L
H
COM
L
H
CH 0
L
H
CH 7
L
CH0996
CH0993
JM4
JM5
JM14
JM15
JM16 JM17
Figure 1-1. E1460A Multiplexer Block Diagram
BANK 4
BANK 5
BANK 6
BANK 7
12 Getting Started
Chapter 1
Banks are arranged as follows:
• Bank 0 includes channels 00 throug h 07 and COM
• Bank 1 includes channels 10 throug h 17 and COM
• Bank 2 includes channels 20 throug h 27 and COM
• Bank 3 includes channels 30 throug h 37 and COM
• Bank 4 includes channels 40 throug h 47 and COM
• Bank 5 includes channels 50 throug h 57 and COM
• Bank 6 includes channels 60 throug h 67 and COM
• Bank 7 includes channels 70 throug h 77 and COM
Each c hannel is switched (connec ted to its common) by closing the
appropriate (latching) relays . Chan nels 0 through 7 can be switched to
COM for all banks. Any number of channels in each bank can be connec ted
to com mon at a time (except for one-wire mode).
User inputs/outputs to ea ch channel are via wire terminal s. When a channel
is closed, it is internally c onnected to the COM terminal. When a chan nel is
opened, it i s internally disconnected. Open channels are not terminated.
At power-on or reset , all channels are switched open (non-te rmina ted ) for all
banks only when using the SCPI or C-SCPI driver. At power-off, all relays
remain in their present state.
Control Relays In addition to the channel switching relays, the switch card contains seven
control relays (numbered 0990 to 0996). These relays switch the COM lines
of banks dependent on the mode selected. All relays are automatically
selected when the m odule is conf igured for the desired mode, when using
the
[ROUTe:]FUNCtion <
card_number>
, <
function>
command.
For the s tand -a lone switchbox configuration, this command must be used in
conjunction with the following comm ands. If you only use
and
[ROUTe:]CLOSe
be closed with the
[ROUTe:]SCAN:MODE mode
[ROUTe:]SCAN:PORT
[ROUTe:]SCAN channel_list
For the scanning multimeter configuration,
<
card_number
INITiate or MEASure multimeter commands closes t he appropriate control
relays. See Chapter 3 in this manual and Chapter 5 in the E1326B/E1411B
User’s Manual for more informat ion about these commands. Table 1-1
shows t he c ont ro l relay functions.
commands, the appropriate control relays must also
CLOSe
>, <
function
command.
[ROUTe:]FUNCtion
in c onjunct ion with the CON Figure and
>
[ROUTe:]OPEN
Chapter 1
Getting Started 13
Table 1-1. Control Relay Functions
Basic Operating
Modes
Control
Relay
0990 Selects H I or LO terminal for one-wire switching.
0991 Connects Cable Test or one-wire LO REF terminal to the
one-wire LO COM terminal.
0992 Connects lower 32 channels (banks 0 - 3) to analog bus.
0993 Connects upper 32 channels (banks 4 - 7) to analog bus.
0994 Connects lower and upper analog buses together.
0995 Connects lower and upper common buses together
(64-channel, two-wire operation).
0996 Connects analog bus Guard to the LO line, on th e upper
32 channels (banks 4 t o 7).
The E 1460A us es the channel and control relays on the switch card to
perform fo ur basic operating modes: one-wire, two-wire, three-wire, or
four-wire as shown. Co nnec tions to the analog bus (for multimeter
connection) are provided on both the relay switch card and terminal module.
Function
One-wire Mode Switches either the HI o r LO terminal of a channel in banks 0 through 7 to
the on e-wire HI COM terminal. One-wire LO COM is switched to the
one-wire LO REF termi nal. Only one channel can be switched (closed) at
a time. A maximum o f 128 one-wire channels can be switched.
through all c hannel relay lows. Then, control relay 0990 switches and
goes through all channel relay highs.
SCAN
goes
SCAN
Two-wire Mode Switches both the HI and LO terminals of a channel in banks 0 through 7
Three-wire Mode Switches both the HI and LO terminals of a channel i n bank s 0 through 3
Four-wire Mode Switches both the HI and LO terminals of a c hannel in banks 0 through 3
14 Getting Started
to the HI COM and LO CO M terminals. A maximum of 64 two-wire channels
can b e switched.
to the H I COM and LO COM terminals. This mo de also switches the LO
terminal of the pair channel in banks 4 through 7 to the LO COM terminal.
In addition, the low terminal of the pai r channel in banks 4 through 7 can be
connected to the analog bus Guard terminal. Banks are p aired 0/4, 1/5, 2/6,
and 3/7. A maximum of 32 three-wire channels can be switched.
to the H I COM and LO COM terminals. Also switc hes the HI and LO
terminals of the pair channe l in banks 4 through 7 to the HI COM and LO
COM terminals. Banks are paired 0/4, 1/5, 2/6, and 3/7. A maximum of
32 four-wire channels can be switched.
Chapter 1
Configuring the Multiplexer
This sec tion gives guidelines to configure the relay switch card. See
"Configuring Terminal Modules" for guidelines to configure the t erminal
modules. This section includes:
• Warnings and Cautions
• Setting the Logical Address Switch
• Setting the Status Regist er Switch
• Setting the Interrupt Priority
• Configuring the Switch Card Wire Jumpers
• Installing the Multiplexer in a Mainframe
• Connect ing the Ana log Bus
Warnings and
Cautions
WARNING SHOCK HAZARD. Only service-trained personnel who are
aware of the hazards involved should install, remove, or
configure the multiplexer. Before you re move any installed
module, disconnect AC power from the mainframe and from
other modules that may be connected to the multiplexer.
WARNING CHANNEL WIRING INSULATION. All channels that have a
common connection must be insulated so that the user is
protected from electrical shock in the event that two or more
channels are c onnected together. This means wiring for all
channels must be insulated as though e ach channel carries the
voltage of the highest voltage channel.
CAUTION MAXIMUM INPUTS. The maximum voltage that can be applied to any
terminal i s 220 Vdc/2 50 Vrms. The maximum current that can be applied
to any te rminal is 1A at 30 Vdc/Vrms, or 0.3 A at 250 Vdc/Vrms. The
maximum power that can be applied to any terminal is 40 VA.
CAUTION STATIC E LECTRICITY. Static electricity is a major caus e of com ponent
failure. To prevent damage to the electrical c omponents in the multiplexer,
observe anti-static techniques whenever removing a module from the
mainframe or whenever working on a module.
Chapter 1
Getting Started 15
Setting the Logical
Address Switch
NOTE The address switch s elected v alue m ust be a multiple of 8 if the module i s
Plug-in modules installed in an mainframe or used with a command module
are treated as independent in strum ents each having a unique secondary
GPIB address. Each instrument is also assigned a dedicated error queue ,
input and output buf fers, status registers and, if applicable, dedicated
mainframe/command module memory sp ac e for readings or data. An
instrument may be compo se d of a s ingleplug -in module (such as a counter)
or multipl e plug-in module s (for a switchbox or scanning multimeter
instrument).
The in strument logical address (LADDR) is set with the logical address
switch located on the instrument. The logical address switch (LADDR)
factory setti ng for the E1460A is 112. Valid address values are from 1
to 255. See Figure 1-2 to set the logical address. From Figure 1-2, note that
the value of the logical address set is th e sum of the values of the sw itches
set to the CLOSED position.
the first module in a switchbox used with a VXIbus command module and
being instructed by SC PI commands.
Logical Address = 112
0=OPEN
1=CLOSED
412
8
16+32+64=112
CLOSED = Switch Set To 1 (ON)
OPEN = Switch Set To 0 (OFF)
Figure 1-2. Setting the Logical Address Switch
Logical Address
Switch Location
8
4
2
6
6
3
2
1
1
16 Getting Started
Chapter 1
Setting the Status
Register Switch
Four bit s o f the Status Register (bits 10-13) define whether the multiplexer
module is set for one-wire, two-wire, three-wire, or four-wire switching. To
ensure proper operation, set the status register switch as shown in Figure
1-3.
010
0
0
0
1
0
0
1
0
0
0
1
1
10
010
1-wire, 128-channel
0
2-wire, 64-channel
0
2-wire, Dual 32-channel
1
1
3-wire, 32-channel
4-wire, 32-channel
Example shows
switch set
to 4-wire
Setting the Interrupt
Priority
13
10
Status Register
Switch Location
Figure 1-3. Se tting the Status Register Switch
The multiplexer module generates an interrupt after a channel has been
closed. These interrupts are sent to, and acknowledgmen ts are received
from, the command module (such as an E1406A) via the VXIbus backplane
interrupt lines.
For most applicat ions where the multiplexer module is installed in a C-Si ze
mainframe, t he interrupt priority jum per does not have to be moved. This is
because the VXIbus interrupt lines hav e the same priority, and interrupt
priority is established by installing modules in slots numerically closes t to
the command module. Thus, slot 1 has a higher priority than slot 2, slot 2
has a higher priority than slot 3, etc.
See Figure 1-4 to change the interrupt priority. You can select eightdifferent
interrupt priority levels. Level 1 is the lowest priority and Level 7 is the
highest priority. Level X disables the interrupt. The module’s factory setting
is Level 1. To change, rem ov e the 4-pin jumper from the o ld priority location
and reinstall in the new priority location. If the 4-pin jumper is not used, the
two jumper locations mus t have the same interrupt priority level selected.
Chapter 1
Getting Started 17
NOTE The interrupt p riority jumper MUST be installed in position 1 when using the
E1406 command module. Level X interrupt priority should not be used
under normal operating conditions. Changing the priority level jumper is not
recommended. Do not change unless specifically instructed to do so.
Using 4-Pin
Q
R
I
Q
R
I
Jumper
4
5
7
6
Using 2-Pin
Jumper
4
5
7
6
1
2
3
X
1
2
3
X
Interrupt
Priority
Location
Configuring the
Switch Card Wire
Jumpers
NOTE It is only necessary to change the wire jumpers when reconfiguring the
Figure 1-4. Setting the Interrupt Priority
The relay switch card has thirteen factory-installed wire jumpers (see
Figures 1-1 and 1-5) that connect COM lines of banks together to form
dual 1x 32 channel configurations. These wire jumpers can be changed to
reconfigure the switc h card to various 8-channel or 16-channel
configurations.
switch c ard for groups of eight or 16 channels (from 32). DO NOT
CHANGE the wire jumper pos itions unless instructed to do so in the
applicable operating procedures.
18 Getting Started
Chapter 1
Wire Jumper Functions With the ex c epti on of JM1, wire jumpers are changed in pairs. Functions of
the wire jumpe rs are:
• JM1: Used during cable test (see Chapter 2)
• JM2/JM3: Used to connect the COM lines of bank pairs 0/1 and 2/3
• JM4/JM5: Used to connect the COM lines of bank pairs 4/5 and 6/7
• JM10/JM11: Used to conne ct the COM lines of banks 0 and 1
• JM12/JM13: Used to conn ec t the COM lines of banks 2 and 3
• JM14/JM15: Used to conn ec t the COM lines of banks 4 and 5
• JM16/JM17: Used to conn ec t the COM lines of banks 6 and 7
Jumper Location
Reconfiguring the Relay
Switch
Chapter 1
Figure 1-5. Switch Card Wire Jumper Settings
To reconfigure the relay switch card:
1 Position the switch card on a flat surface. Using a TORX T-10 driver,
remove the six screws on the shield and carefully lift the shield to
expose the printed circuit board.
2 Configure the wire jump ers as required using Table 1-2. If you install
new jumpers, us e z ero-ohm resistors or No. 22 AWG copper wi re.
For ex ample, to configure banks 0, 1, 2, and 3 as 1x8 multipl exe rs
and banks 4, 5, 6, and 7 as 1x16 multiplexers, jumper positions are:
Jumpers = JM14,15,16,17 and No Jumpers = J M2,3,4,5,10,11,12,13.
3 Replace the shield and re-install th e six screws.
Getting Started 19
NOTE When wire jumpers J M10 through JM17 are removed, the odd-numbered
banks can no longer be connec ted to the analog bus. For ex ample, if JM10
and JM11 are removed, then bank 1 can no longer be connected to the
analog bus termi nals (excep t through user wiring).
When wire jumpers J M2 through JM5 are removed, banks 2/3 and 4/5,
respectively, can no longer be con nec ted to the analog bus. For example,
if JM 2 and JM3 are removed, then banks 2 and 3 can no longer be
connected to the analog bus terminals (except through user wiring).
Table 1-2. Jumper Configurations
Bank Number = Jumper
Configuration
JM Number ( 0 = Jumper, 1 = No Jumper)
Bank0Bank1Bank2Bank3123451011121314151617
1x32*1x32*1x32*1x32* -00- -0000- - - 1x16 1x16 1x16 1x16 -11- -0000- - - 1x8 1x8 1x8 1x8 -11- -1111- - - 1x8 1x8 1x16 1x16 -11- -1100- - - 1x16 1x16 1x8 1x8 -11- -0011- - - -
Bank Number = Jumper
Configuration
JM Number ( 0 = Jumper, 1 = No Jumper)
Bank4Bank5Bank6Bank7123451011121314151617
1x32*1x32*1x32*1x32* - - -00- - - -0000
1x16 1x16 1x16 1x16 - - -11- - - -0000
1x8 1x8 1x8 1x8 - - -11- - - -1111
1x8 1x8 1x16 1x16 - - -11- - - -1100
1x16 1x16 1x8 1x8 -- -11- - - -0011
* factory setting
20 Getting Started
Chapter 1
Installing the
Multiplexer in a
Mainframe
Set the extraction levers out.
1
Extraction
Levers
The E 1460A c an be installed in any slot (except slot 0) in a C-Size VXIbus
mainframe. See Figure 1-6 to install the multiplexer in a mainframe.
Slide the multiplexerinto any slot
2
(except slot 0) until the backplane
connectors touch.
4
Tightenthe top and bottom screws
to secure the multiplexer to the
mainframe.
To remove the multiplexer from the mainframe,
reverse the procedure.
3
Seat the multiplexer into
the mainframe by pushing
in the extraction levers.
Chapter 1
Figure 1 -6. Installing the Multiplexer in a VXIbus Mainframe
Getting Started 21
Connecting the
Analog Bus
NOTE The analog bus can al so be wired to the terminal module. See "Standard
Figure 1-7 shows how to connect the analog bus between multiple
multiplexer modules and to the E1411B multimeter. Use cable (part number
E1400-61605) to connect the analog bus to all t he modules.
Terminal Module Description" for more information.
Multimeter Module
Command Module
or VXI Controller
22 Getting Started
Daisy-Chain Cables
(E1400-61605)
Multiplexer Modules
Figure 1-7. Analog Bus Cable Connections
Chapter 1
Configuring Terminal Modules
The E 1460A 64-Channel Relay Multiplexer cons ists of a relay switch card
and a ( s tan dard) screw-type terminal module or a crim p-and-insert terminal
module (Option A3E). See Figure 1-10 for t he mul ti plexer’s connec tor
pin-out that mates to the terminal module.
Standard Terminal
Module Description
Figure 1-8 shows the standard screw-t ype terminal module connectors and
associated banknumbers, ch annel num bers , an d line designations. Use the
following guidelines for wiring connections:
• Be sure that wires make good connections on screw terminals.
• Maximum term inal wire size is No. 16 AWG. When wiring all
64-channels, a smaller gauge wire (20-22 AWG) is
recommended.
• Wire ends shou ld be stripped 6mm (0.25 in.) and tinned to
prevent single strands from shorting to adjacent t ermi nals.
Bank 0-3 T erminals
Analog Bus Terminals
Terminal Module
Option A3E
Description
Chapter 1
Bank 4-7 T erminals
Analog Bus Terminals
1-Wire Terminals
Figure 1-8. Standard Screw-type Terminal Module
Terminal m odule Option A3E (see Figure 1-9) provides a crimp-and-insert
terminal module that allows you to crimp connectors onto wires which are
then i ns erted directly into the multiplexer’s mating connector. See the
pin-out diagram(Figure 1-10) to make the connections. Table 1-3 shows the
accessories that can be used with crimp-and-insert Option A3E.
Cable Test Terminal
1-Wire Low Ref Terminal
Getting Started 23
Figure 1-9. Option A3E Crimp-and-Insert Connector
Table 1-3. Option A3E Terminal Module Accessories
Accessory Description Picture Specifications
SingleConductor
and Contact
ShieldedTwisted-Pair
and Contacts
Jumper Wire
and Contacts
Crimp-andInsert
Contacts
A crimp-and-insert contact i s crimped
onto one end of a wire. The other end
is not terminated. O rd er 91510A.
A crimp-and-insert contact i s crimped
onto each conductor at one end of a
shielded-twisted-pair cable. The
other end is not termina ted. Order
91511A.
A crimp-and-insert contact i s crimped
onto each end of a s ingle conductor
jumper wire. This jum per is typically
used to t ie tw o pins together in a
single crimp-and-insert connector.
Order 91512A.
These contacts m ay be c rimped onto
a conductor and then inserted into a
crimp-and-insert connector. The
crimp tool k it is required to crimp the
contacts ont o a conductor and
remove the contact from the
connector. Order 91515A.
Length: 2 meters
Wire Gauge: 24 AWG
Quantity: 50 each
Insulation Rating: 105
Voltage: 300 V
Length: 2 meters
Wire Gauge: 24 AWG
Outside Diameter: 0.1 inches
Quantity: 25 each
Insulation Rating: 250
Voltage: 600 V
Length: 10 cm
Wire Gauge: 24 AWG
Quantity: 10 each
Insulation Rating: 105
Voltage: 300 V
WireGaugeRange: 20-26AWG
Quantity: 250 each
Plating: Gold Plated Contact
Maximum Current: 2A at 70
o
Cmax
o
Cmax
o
Cmax
o
C
Crimp-andInsert Tools
The hand crimp tool (part number 91518A) is used for crimping contacts onto a conductor.
The pin ex tract or tool (part number 91519A) is required for removing contacts from the
crimp-and-insert connector. These products are not included with Option A3E or with the
terminal option accessories listed earlier.
Extra
Crimp-and-
The c rim p-and-insert c onnec t or is normally supplied with Option A3E. Contact Agilent if
additional connectors are needed. Order 91484B.
Insert
Connectors
24 Getting Started
Chapter 1
Connecting User
Inputs
Figure 1-10 shows the front panel of the E1460A and the multiplexer’s
connector pin-out which mates to the te rminal mod ule. Actu al user inputs
are connected t o the terminal module. See "Wiring Terminal Module s" for
connection information.
Chapter 1
Figure 1-10. E1460A Multiplexer Pin-Out
Getting Started 25
Wiring Terminal
Modules
Figures 1-11 and 1-12 show sugges t ed steps to connect field wiring (user
inputs) to a terminal module.
1
Remove Clear Cover
Make Connections
3
Screw-Type
A. Release Screws
B. Press Tab Forward
and Release
Tab
Use wire
Size 16-26
AWG
VW1 Flammability
Rating
5mm
0.2"
Remove and Retain Wiring Panel
2
Crimp-and-Insert
Remove 1 of the 3
wire exit panels
Use wire
Size 22-26
AWG
2.5mm
0.1"
Insert wire into terminal.
Tightenscrew.
InstallConnectors (Crimp-and-Insert)4
Route Wiring5
Tighten wraps to
secure wires
Figure 1-11. Steps to Wire Terminal Modules
Continued on next page
26 Getting Started
Chapter 1
Replace Wiring Panel
6
Cut required
holes in panels
for wire exit
Keep wiring panel exit
hole as small as
possible
7
ReplaceClear cover
A. Hook in the top cover
tabs onto the fixture.
B. Press down and
tighten screws
Installon Multiplexer8
Push in the Extraction Levers to Lock the
9
Terminal Module onto the Multiplexer
Extraction
Levers
Chapter 1
Figure 1-12. Steps to Wire Terminal Modules (continued)
Getting Started 27
Attaching Terminal
Modules to the
Multiplexer
Extendthe extractionleverson the1
terminal module.
Extraction Lever
Use small screwdriver
to release the two
extractionlevers
Figure 1-13 shows how to attach a terminal module to the multiplexer and
how to rem ov e a terminal module from the multiplexer.
ExtractionLever
2
Align the terminal module connectors
to the multiplexer connectors.
3
Applygentlepressuretoattach
the terminal module to the
multiplexer.
4
Push in the extraction levers
to lock th e terminalmodule
onto the multiplexer.
Extraction
Levers
To remove the terminal module from the multiplexer,
use a small screwdriver to release the two extraction
levers and push both levers out simultaneously
to free it from the multiplexer.
Figure 1-13. Attaching a Terminal Mo dule to the Multiplexer
28 Getting Started
Chapter 1
Programming the Multiplexer
The multiplexer m odules are programmed using either a switchbox or
scanning multimeter configuration. To program the multiplexer modules
using SCPI commands, you must choose the controller language, interface
address, and SCPI c ommands to be used . Guidelin es to choose SCPI
commands for the multiplexer follow.
NOTE This discus s ion appl ies only to SCPI programming. See Appendix B -
Register-Based Programming for details on mul tiplexer module registe rs.
Checking SCPI
Drivers
What are SCPI Device
Drivers?
Checking the SCPI Driver
Revision
The E 1460A operates with Switchbox D river Revision A.08. 03 or later or
with Scanning Voltmeter Driver Revision A.06.03 or later. The E1460A may
be recognized by e arlier driver revisions, but will not operate properly.
Before us ing the E1406A, you sh ould check your driver revision and, if
necessary, load a new driver.
This procedure shows a way to download SCPI drivers to the E1406A.
SCPI Instrument Drivers and the VXI Installation Consultant (VIC) are on
the Agilent Technologies Universal Instrument Drivers CD. For the latest
information on drivers, see the Agilent web s ite:
http://www.agilent.com/find/inst_drivers
Agilent register-based modules are supported by Standard Commands for
Programmable Ins trument s (SCPI) drivers. These drivers reside in E1406A
Command Module non-volatile memory. If you add a new register-based
module to an exist ing VXI system and pla n to program the module using
SCPI, t he firmware in your command mo dule m ay nee d to be upgraded to
accommodate the new module. You can download new drivers into
non-volatile m emory from controlle rs running Windows, BASIC, or IBASIC.
This procedure describes how to decide which E1460A driver to use, how to
check the curren tly installed driver, and how to determine if you need to
downloada new driver. If you determine that you need to install anew driver,
see "Do wnloadi ng a New Driver".
Chapter 1
1
Decide whether t o use the VOLTMTR or SWITCH driver. Use the
VOLTMTR driver if you intend t o use the E1460A in combinati on
with the E1326B or E1411B multimeter in a Scanning Voltmeter
configuration. In this configuration, the E1460A s ca ns meas urement
channels and sends the signals to the multim eter where the
measurements take place. Use the SWITCH driver for all other
applications (all non-Scanning Voltmeter applications).
2 Check the currently installed driver revision numbers by sending the
DIAG:DRIV:LIST? command to the command modu le (the command
module is usually at GPI B add ress 70900). A typical result follows.
The s pec ific resu lt depends on the specific drivers previously loaded
into your command module.
Getting Started 29
SYSTEM,E1406A,A.08. 00,ROM;IBASIC,IBASIC,A.O4.02,ROM ;
VOLTMTR,E1326B,A.06.00,RO M;S WITCH,SWITCHBOX,A.07.00,ROM;
COUNTER,E1332A,A.04.02 ,ROM;E1333A,A.04.02,ROM;
DIG_I/O,E1330A,A.O4.03,ROM;D/A,E1328A ,A.04.02,ROM
3 Determine whether to install a new driver. The E1460A requires a
SWITCH Driver Revision of A.08.03 or later or a VOLTMTR Driver
Revision A.06.03 or later. In the exa mpl e response ab ov e, the
currently installed drivers are:
VOLTMTR,E1326A,A.06.0 0,RO M
SWITCH,SWITCHBOX,A.07.00,ROM
In this example, you must downloa d a new SWITCH or VOLTMTR driver
(depending upon which driver you chose in Step 1).
Downloading a New
Driver
NOTE If you are updating an already installed driver, the new driver must be
Multiplexer
Addressing
To downloada new driver, choos e your operating system and interfacefrom
the follo wing list and follow the related instructions.
Windows via GPIB or RS-232. (For the fastest download, use GPIB rather
than RS-232.) Use the VXI Installation Consultant (VIC). VIC is a hardware
installation program that helps you configure and install VXI instruments and
can a lso download DOS-formatted instrument drivers. VIC downloads
driversduring the configuration process and stores a copy of the driverin the
C:\VIC\DRIVERS directorytheF IRST TIME theinstrument isconfigured.
downloaded using the VIC Driver Download utility. Instructions f or using
VIC and its Driver Download utility are contained in VIC’s on-line help.
All other operating systems/interfaces. See the Installing SCPI Device
Drivers Insta llation Note (shipped with the downloadable drivers).
To address specific channels within a multiplexer modulein either switchbox
or scanning multimeter configuration, you m us t end the appropriate SCPI
command string to the switchbox or scanning mul timeter (for example,
CLOSe,OPEN
, etc .) and specify the specific channel add re ss.
SCPI Commands Format You can send SCP I commands in either short or long form. A long form
example is
case l etters is the short form. The command then becomes
Some c ommands are shown with brackets ([ ]). These are implied
commands that you do not need to exec ute. The bracket s are not part
of the co mm and and are not sent to the instrument.
For example, the
here as
can j us t enter
SCPI commands and how to send them.
30 Getting Started
CLOSe(@123)
ROUTe
[ROUTe:]CLOS(@123)
CLOS(@123)
. The same co mm and shown w ithout the lowe r
command is an implied command and is shown
. See Chapt er 3 for more information about
CLOS(@123)
. Thus, to exe cu te these commands, you
Chapter 1
.
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