Agilent Technologies 34952a User manual

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Agilent Technologies
Agilent 34952A
Multifunction Module
User’s Guide
Agilent Technologies, Inc.
Printed in Malaysia
Edition 2
September 2012 E0912
*34980-90052* 
34980-90052

Notices
© Agilent Technologies, Inc. 2008
No part of this manual may be reproduced
in any form or by any means (including
electronic storage and retrieval or transla-
tion into a foreign language) without prior
agreement and written consent from 
Agilent Technologies, Inc. as governed 
by United States and international copy-
right laws.
Manual Part Number
34980-90052
Edition
Second Edition, September 2012
Printed in Malaysia
Agilent Technologies, Inc.
3501 Stevens Creek Blvd 
Santa Clara, CA 95052 USA
Microsoft® and Windows® are U.S. regis-
tered trademarks of Microsoft Corporation.
Software Revision
This guide is valid for the firmware that
was installed in the instrument at the time
of manufacture. However, upgrading the
firmware may add or change product 
features. For the latest firmware and 
documentation, go to the product page at:
www.agilent.com/find/34980A
Warranty
The material contained in this docu-
ment is provided “as is,” and is sub-
ject to being changed, without notice,
in future editions. Further, to the max-
imum extent permitted by applicable
law, Agilent disclaims all warranties,
either express or implied, with regard
to this manual and any information
contained herein, including but not
limited to the implied warranties of
merchantability and fitness for a par-
ticular purpose. Agilent shall not be
liable for errors or for incidental or
consequential damages in connection
with the furnishing, use, or perfor-
mance of this document or of any
information contained herein. Should
Agilent and the user have a separate
written agreement with warranty
terms covering the material in this
document that conflict with these
terms, the warranty terms in the sep-
arate agreement shall control.
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The hardware and/or software described in
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Restricted Rights Legend
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Safety Notices
CAUTION
A CAUTION notice denotes a haz-
ard. It calls attention to an operat-
ing procedure, practice, or the like
that, if not correctly performed or
adhered to, could result in damage
to the product or loss of important
data. Do not proceed beyond a
CAUTION notice until the indicated
conditions are fully understood and
met.
WARNING
A WARNING notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly per-
formed or adhered to, could result
in personal injury or death. Do not
proceed beyond a WARNING
notice until the indicated condi-
tions are fully understood and met.
ii Agilent 34952A Multifunction Module User’s Guide

Additional Safety Notices
The following general safety precautions
must be observed during all phases of oper-
ation of this instrument. Failure to comply
with these precautions or with specific
warnings or instructions elsewhere in this
manual violates safety standards of design,
manufacture, and intended use of the
instrument. Agilent Technologies assumes
no liability of the customer’s failure to com-
ply with the requirements.
General
Do not use this products in any manner not
specified by the manufacturer. The protec-
tive features of this product may be
impaired if it is used in a manner not speci-
fied in the operation instructions.
Before Applying Power
Verify that all safety precautions are taken.
Make all connections to the unit before
applying power.
Ground the Instrument
This product is provided with protective
earth terminals. To minimize shock hazard,
the instrument must be connected to the
ac power mains through a grounded power
cable, with the ground wire firmly con-
nected to an electrical ground (safety
ground) at the power outlet. Any interrup-
tion of the protective (grounding) conduc-
tor or disconnection of the protective earth
terminal will cause a potential shock haz-
ard that could result in personal injury.
Do Not Operate in an Explosive
Atmosphere
Do not operate the instrument in the pres-
ence of flammable gases or fumes.
Do Not Remove the Instrument
Cover
Only qualified, service-trained personal
who are aware of the hazards involved
should remove instrument covers. Always
disconnect the power cable and any exter-
nal circuits before removing the instrument
cover.
Do Not Modify the Instrument
Do not install substitute parts or perform
any unauthorized modification to the prod-
uct. Return the product to an Agilent Sales
and Service Office for service and repair to
ensure that safety features are maintained.
In Case of Damage
Instruments that appear damaged or defec-
tive should be made inoperative and
secured against unintended operation until
they can be repaired by qualified service
personnel.
Safety Symbols
Waste Electrical and Electronic
Equipment (WEEE) Directive
2002/96/EC
This product complies with the WEEE
Directive (2002/96/EC) marking require-
ment. The affixed product label (see above)
indicates that you must not discard this
electrical/electronic product in domestic
household waste.
Product Category: With reference to the
equipment types in the WEEE directive
Annex 1, this product is classified as a
“Monitoring and Control instrumentation”
product.
To return unwanted products, contact 
your local Agilent office, or go to 
www.agilent.com/environment/product
for more information.
Technical Support
If you have questions about your shipment,
or if you need information about warranty,
service, or technical support, contact 
Agilent Technologies:
In the United States: [phone]
In Europe: 31 20 547 2111
In Japan: 0120-421-345
Or go to www.agilent.com/find/assist 
for information on contacting Agilent in
your country of specific location. You can
also contact your Agilent Technologies 
Representative.
Alternating current
Frame or chassis
terminal
Standby supply. Unit is
not completely
disconnected from ac
mains when switch is off
Caution, risk of electric
shock
Caution, refer to
accompanying description
Agilent 34952A Multifunction Module User’s Guide iii

iv Agilent 34952A Multifunction Module User’s Guide
Declaration of Conformity
Declarations of Conformity for this product and for other Agilent products may be
downloaded from the Internet. There are two methods to obtain the Declaration of
Conformity:
•Go to http://regulations.corporate.agilent.com/DoC/search.htm . You can
then search by product number to find the latest Declaration of Conformity.
•Alternately, you can go to the product web page
(www.agilent.com/find/34980A), click on the Document Library tab then
scroll down until you find the Declaration of Conformity link.

Agilent 34952A Multifunction Module User’s Guide v
Contents
34952A Multifunction Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Digital Input/Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Totalizer Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Analog Output (DAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
34952A SCPI Programming Examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Digital Input/Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Totalizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
DAC Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
34952A Simplified Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
34952A D-Sub Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
34952T Terminal Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

vi Agilent 34952A Multifunction Module User’s Guide

34952A Multifunction Module
Agilent 34952A Multifunction Module User’s Guide 1
34952A Multifunction Module
The 34952A Multifunction Module with DIO, D/A, and Totalizer combines
four 8- bit ports of digital input/output, a 100 kHz totalizer, and two ±12
volt earth- referenced analog outputs. You can include digital inputs and
totalizer input in a scan list. You can make connections via standard
50- pin D- sub cables or the optional 34952T terminal block.
Digital Input/Output
The Digital Input/Output (DIO) consists of four 8- bit ports with
TTL- compatible inputs and output. The open- drain outputs can sink up to
400 mA. From the front panel, you can read data from only one 8- bit
input port at a time. You can configure the DIO ports for 8, 16, or 32- bit
operations. The DIO channels are connected by internal 5 V pull- up
resistors when configured as inputs.
Totalizer Input
The 32- bit totalizer can count pulses at a 100 kHz rate. You can configure
the totalizer to count on the rising edge or falling edge of the input signal.
A TTL high signal applied to the Gate terminal enables counting and a low
signal disables counting. A TTL low signal applied to the Not- Gate
terminal enables counting and a high signal disables counting. The
totalizer counts only when both terminals are enabled.
Analog Output (DAC)
The two analog outputs are capable of outputting voltages between ±12
volts with 16 bits of resolution. Each DAC channel is capable of 10 mA
maximum current. Use the two analog outputs to source bias voltages to
your DUT, to control your analog programmable power supplies, or as set
points for your control systems. The outputs are programmed directly in
volts.
NOTE
When a gate is not connected, the gate terminal is pulled to the
enabled state, effectively creating a “gate always” condition.

2 Agilent 34952A Multifunction Module User’s Guide
34952A SCPI Programming Examples
34952A SCPI Programming Examples
The programming examples below provide you with SCPI command
examples to use for actions specific to the general purpose switch
modules.
The slot and channel addressing scheme used in these examples follow the
form sccc where sis the mainframe slot number (1 through 8) and ccc is
the channel number. For information on specific configurations, refer to
the simplified schematic on page 4.
For complete information on the SCPI commands used to program the
34980A, refer to the Agilent 34980A Programmer’s Reference contained on
the 34980A Product Reference CD. For example programs, also refer to the
34980A Product Reference CD.
Digital Input/Output
Example: Configuring a DIO channel The following program segment
configures channel 1 on the DAC module in slot 3 as an output and then
reads the output value (the channel is not reconfigured as an input). Then,
the channel is reconfigured as an input and the value is read again.
The second command below returns 64 as it is physically reading the
output data.
SOURce:DIGital:DATA:BYTE 64,(@3001)
SENSe:DIGital:DATA:BIT? 0,(@3001)
The second command below returns whatever is being input externally.
CONFigure:DIGital:STATe INPut,(@3001)
SENSe:DIGital:DATA:BIT? 0,(@3001)
Totalizer
Example: Reading totalizer channel count The following command reads the
count on totalizer channel 5 on the Multifunction module in slot 3.
SENSe:TOTalize:DATA? (@3005)
Example: Configuring the totalizer reset mode To configure the totalizer reset
mode, send either of the following commands.
The following command configures totalizer channel 5 on the Multifunction
module in slot 3 to be read without resetting its count.
SENSe:TOTalize:TYPE READ,(@3005)
The following command configures totalizer channel 5 on the Multifunction
module in slot 2 to be reset to "0" after it is read (RRESet means “read
and reset”).
CONFigure:TOTalize RRES,(@2005)

34952A SCPI Programming Examples
Agilent 34952A Multifunction Module User’s Guide 3
Example: Configuring the totalizer for count This command configures the
totalizer to count on the rising edge (positive) or falling edge (negative) of
the input signal. The following command configures the totalizer (channel
5) on a Multifunction module in slot 3 to count on the negative edge
(falling) of the input signal.
TOTalize:SLOPe NEGative,(@3005)
Example: Clearing count on the totalizer channel This command immediately
clears the count on the specified totalizer channels. The following
command clears the count on the totalizer (channel 5) on a Multifunction
module in slot 3.
TOTalize:CLEAR:IMMediate (@3005)
DAC Output
Example: Setting output voltage This command sets the output voltage level
for the specified DAC channels. The following command outputs +2.5 V DC
on DAC channels (6 and 7) of a Multifunction module in slot 4.
SOURce:VOLTage 2.5,(@4006,4007)
Configuring a Multifunction Module
Example: Querying the system for module identify The following command
returns the identify of the module installed in slot 7.
SYSTem:CTYPe? 7
Example: Resetting module(s) to power-on state The following command
resets a module in slot 4 to its power- on state.
SYSTem:CPON 4

4 Agilent 34952A Multifunction Module User’s Guide
34952A Simplified Block Diagram
34952A Simplified Block Diagram
DIO
32 Bits Totalizer
Count +
Count - Channel
005
Gate
D/A1 Channel
006
16 Bits
D/A2
16 Bits Channel
007
8
8
8
8
Channel
001
Bit 0
Bit 7
Channel
002
Bit 8
Bit 15
Channel
003
Bit 16
Bit 23
Channel
004
Bit 24
Bit 31
Gate
DAC 1H
DAC 1L
DAC 2H
DAC 2L
User-Supplied Connections
Internal to the 34952A Module

34952A D-Sub Connector
Agilent 34952A Multifunction Module User’s Guide 5
34952A D-Sub Connector

BIT
19 BIT 12
BIT
13
BIT
14
BIT
15 GND
BIT
20
BIT
21 BIT 18 BIT 17 BIT 16
BIT
22 GATEGATE
GNDGND
33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18
CNT -CNT +GND
BIT
0
BIT
1
BIT
2
BIT
3
BIT
4
BIT
5
BIT
6
BIT
7
BIT
8
BIT
9
BIT
10
BIT
11 GNDGND
17 16 15 14 13 12 11 10 987654321
49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34
BIT
23
BIT
24
BIT
25
BIT
26
BIT
27
BIT
28
BIT
29
BIT
31 BIT 30 DAC 1L DAC 2H
DAC
1H NC GNDGNDGND DAC
2L
50
50-Pin D-Sub
Female Connector
Description Socket Description Socket Description Socket Description Socket
Channel 1
Bit 0 4
Channel 3
Bit 16 26
Channel 5
To t a l i z e r
Count - 1 GND 47
Bit 1 5 Bit 17 27 Count + 2 No Connect 36
Bit 2 7 Bit 18 28 Gate 19
Bit 3 8 Bit 19 29 Not-Gate 20
Bit 4 9 Bit 20 31 Channel 6 DAC 1L 38
Bit 5 10 Bit 21 32 DAC 1H 39
Bit 6 11 Bit 22 33 Channel 7 DAC 2L 34
Bit 7 12 Bit 23 40 DAC 2H 37
Channel 2
Bit 8 14
Channel 4
Bit 24 42 GND 3
Bit 9 15 Bit 25 43 GND 6
Bit 10 16 Bit 26 44 GND 13
Bit 11 17 Bit 27 45 GND 18
Bit 12 21 Bit 28 46 GND 24
Bit 13 22 Bit 29 48 GND 30
Bit 14 23 Bit 30 49 GND 35
Bit 15 25 Bit 31 50 GND 41

6 Agilent 34952A Multifunction Module User’s Guide
34952T Terminal Block
34952T Terminal Block
Each terminal block is labeled with the model number and the abbreviated
module name. In addition, space is available on the label for you to write
the slot number.
The 34980A Product Reference CD (shipped with the instrument) contains
a 34952T Wiring Log for you to document your wiring configuration for
this module. You can open the wiring log file in Microsoft® Excel® or
Adobe® Acrobat® format.
The 34952T provides space for breadboard and for a connector to control
an external Opto- 22 standard board.
Breadboard
Breadboard
Space and wiring provided for
user-supplied Opto-22 connector
WireSize:
20AWGTypical
18AWGMax

Index
Agilent 34952A Multifunction Module User’s Guide 7
Index
A
analog output, 1
C
connector pinouts, 5
D
DAC output, 1
digital I/O, 1
D-sub pinouts, 5
M
module description, 1
P
pinouts, 5
programming examples, 2
S
simplified block diagram, 4
T
terminal block, 6
totalizer input, 1
W
warranty, ii
wiring log, 6

8 Agilent 34952A Multifunction Module User’s Guide
Index