HP 3497A Installation manual

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Errata
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manual copy. The HP XXXX referred to in this document is now the Agilent XXXX.
For example, model number HP8648A is now model number Agilent 8648A.
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ti!!
HEWLETT
PACKARD
Walt Lofstrom
YO",
HEWLER PACKARD
SALES REPRESENTATIVE
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ANALOG CLOSE.
Closes 1 to 4 channels lone per decade1of analog assemblies.
ANALOG EXTERNAL INCREMENT.
Enables or disables the EXT INCR port. In FAST SCAN IAE21.
multiframe BBM Sync is ignored. InAE1, external pulse into EXT
INCR port increments channel closed to next channel.
ANALOG FIRST CHANNEL.
Selects first channel tobe closed in an analog sequence but does
not close channel.
ANALOG
INPUT.
Closes channel and triggers DVM to take a measurement.
than# -- 0 to 999
A0 slot#,chan#.value OUTPUT.
Sets the outputvoltage levelfor the VDAC and outputcurrent level
slot#
- 0 to 89 for the IDAC. VDAC output is
- 10.2375V to + 10.2375V in 2.5
chan#
-: 0 or 1 mV increments. IDAC output is 0- 20 mA 15pA increments) or
1 AR ANALOG RESET.
Opens analog assembly channels in 3497A and 3498A and sets
VF1, VTl, VR5. VWO, VSO. AEO, AFO and AL999.
AS
I
ANALOG STEP.
Performssoftware channel advance fromthe presently closedchan-
neltonext channel. Repeating the command sequences channels
from AF to AL and back to AF. If AF<AL, channels increment.
H
AF >AL, channels decrement.
L
ANALOG VIEWED CHANNEL
AL chan# ANALOG LAST CHANNEL Ded~catesd~splayto channel selected but does not close channel
Selects last channel to be closed In an analog sequence but does and does not affect other 3497A
operations D~splay IS updatec
chant/
= 0 to 999 not close channel when channel closed and measurement taken
-
--------
-
-----.--e----.-
VOLTMETER AUTOZERO.
With autozero on, DVMtakes measurement between each reading.
VAO
= Autozcro OFF Withautozero off, DVMmakes autozero measurementbeforefirst
VA1
-: Autozero ON reading and when DVM switched to new range.
t
VCn n -- 0 to 3 VOLTMETER CURRENT SOURCE RANGE.
Proorams outout of DVM current source to 1 of 3 values: 10aA.
10 OFF I 106p~orldm~.
3
.- 3 112 digits
4 .- 4 112 digits
5
- 5 112 digits
VOLTMETER DISPLAY.
Selects number of digits to be displayed on front panel and sets
voltmeter integration time. Max reading rate for 60 Hz operation
is 300 readingslsec 1Autozero OFFI. Max rate for 50 Hz is 250
readingslsec.
VFn n
=: 1 to 3 VOLTMETER FORMAT.
Selects the output format for transmission of data over the bus,
when voltmeter storage is off IVSOI.
2
:- Packcd BCD
3
:: Time, ASCII, Chant/
VN,, 1 to 999 VOLTMETER NUMBER READINGSITRIGGER.
Sets number of readings taken per trigger pulse input. Readings
are takensequentially andoutputover the bus in format set by VFn.
VRn n 1 to 5
1
= 0.1v
2
= 1.ov
1 3 = 10v
VOLTMETER RANGE
Sets rangeof DVM. Maximum overrange capability for each range
is 120%of full-scale. Inautorange, OVM upranges at 120%of full-
scale and downranges at 11
% of full-scale.
VOLTMETER STORAGE.
Store upto60readings in
ASCll (50for Serial Data) or up to 100
readingsinPackedBCD (85inSerialDatal. UseVS without number
1
= Storc in ASCII to transfer readings to controller.
2
= Packcd BCD
VOLTMETER TRIGGER.
Set one of four trigger modes. Ininternal, DVMautomatically takes
another readina when Dresent one comoleted. Inexternal. triaaer
2 - Extcrnal s~gnalinputto
~XT TR~G port causes D\JM to take n readings&-
1 3 :- Softwnrc
I aer (as set bvVNn). Insoftware. command causes DVMtotriaaer
4
7- Hold
I
andtake n riadings as set by VNn. Inhold, DVM pauses and does
not take measurements.
vwn .. 0 to 999999 1
VOLTMETER WAIT.
Causesthe DVMtowait n x 100psec betweeneach reading. Max-
imum wait time is 99.9999 sec.
DO slot#.chnn#.chan#
.... DIGITAL OPEN.
For Option 110assembly, command connects NO contacttocom- slot#
:: 0 to 89
1
For Option 110assembly, connects NC contact to common for
mon. For Option 115 assembly. command closes channel relays.
charm ; 0 to 15 channels specified. ForOpt~on115 assembly, opens relays inchan-
chan#
- 0 to 15 Channels not specified remain in prevlous state. nels specified. Relays in channels not specified remainin previous
state.
DIGITAL INTERRUPT ENABLE. DR slot# DIGITAL READ.
Enables the Option050assembly to send an interrupttothe 3497A For HP-18. DR returns same information as DL command. except
when channel bits selected by the command are set true (byex- slot#
-. 0 to 89 that readings are continuously updated. For Serial Data, withSO1
ternal input to the assembly). in effect returns continuously updated readings. With SO0 in ef-
fect, returns one reading per command.
DIGITAL INTERRUPT STATUS. DIGITAL INTERRUPT SENSE.
Usedto determine interrupt status of bits 0- 7 in the Option 050 Sets edge transition sense whch will cause channel 0- 7 bits to
assembly. Also usedtodetermine cause of interrupt from the Op-
tion 060 assembly.
DIGITAL LOAD. DIGITAL VIEWED SLOT.
For Option 050assembly. returns octal value 10- 1777771of con-
tents of 16input channels. For Option 110assembly, returns oc- Dedicates the front paneldisplay toslot specified. To exitthis mode,
tal value 10- 177777)of condition of 16output channels. For Op- use DV without slot specifier.
tion 115 assemblv. returns octalvalue 10
- 3771of condition of 8
channel relays
value
:: 0 to 177777
DIGITAL WRITE.
For Option 110 assembly, connects NO or NC contact tocommon
as specified by octal value. For Option 115 assembly, opens 01
closes relays as specified by octal value. All chamof assy in slot
addressed are affected by DW command.
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- -
-
I
SA SYSTEM ALARM. SYSTEM OUTPUT WAIT.
Initiates an audible alarm (BEEP). When SO1 in effect, two modes to return data to controller. With
SC ISeriol Datal SYSTEM CLEAR.
For Serial Data operation, the SC command is similar to BREAK
message, except that SC does not clear the command buffer or SYSTEM SINGLEICONTINUOUS OUTPUT.
returnthe 3497Atolocal mode. SC clears system errors but does
not reset VF2. VF3 or clear voltmeter storage.
SYSTEM DISPLAY.
SDO turns off the 6-digit display and CHANNEL lights for faster SYSTEM READ.
reading rates. With SDO, only data entered with SVncommand af-
SDl
= Display ON Use SR slot#,Otodetermine type of assembly inslot (exceptanalog
fects display. assemblies). Use SR slot#. 0 through 7 to read register n in slot
SERVICE REOUEST ENABLE. SR slot#.O
- Rcad sig
SEn IHP-I81 SR sloW.0-7
:- Read
SE sets the SRO mask bitswhichenables 3497A tosend an inter-
'- O to 377
rupt to the controller when specified system conditions occur.
SR [Serial Datal STATUS REGISTER READ.
SERVICE REOUEST ENABLE. The SR command returns
a six-bit octalvalueof the status register
SE sets the interrupt mask bits which enables 3497A to send an true bits.
interrupt tothe controller when specified system conditions occur. SELF-TEST
SI SYSTEM INITIALIZE. ST1 causes 3497A to perform internal self-test. BE8 returned if
Sets the digital assemblies and the DVM to initial conditions but
does not affect the analog assemblies.
SLn IScrial Datal
-1
I
SLO : Keyboard Enabled
SLl
: Keyboard
Disabled
SYSTEM LOCK.
Used to disable the front panel keys so that commands can't be
entered from the front panel. With SLl. 3497A can't be returned
to local mode unless SLO is sent or power is turned off.
SYSTEM VIEW.
When the display is turned off by an SDO command, the SV com-
mand wr~tesdata specifi~mdby n to the display.
SYSTEM WRITE.
I 1
- . . . -. , - . . , . -. -
I
Use SW to write data to any assembly d~rectlycontrolled by the
data
= 0 to 377
I TIMER I
TlME ALARM (SET).
I
TE ELAPSED TIME (READ).
Sets 3497A timer. If SRO mask (HP-I81or interrupt mask (Serial UseTE toread elapsedtime I1sec increments)since elapsed timer
Data)hasbeen set for time alarm, interrupt sent tocontroller when control started by TE2 command. Data returnsd has format
Minutcs
:: 0 to 59 time on real-time clock matches time set by TA. DDDDDD sec.
Seconds
- 0 to 59
I
TI HH MM SS TIME INTERVAL.
71 TIME OF DAY (SET). Use Tln to generate pulses from TIMER port with periods from 1
sec to 24hr. If SRO or interrupt mask set, 3497A sends interrupt
TD DDMMHHMMSS Sets 3497A real-time clock to programmed time. for every pulse output.
TIME OF DAY IREAD). Ton TlME OUTPUT.
TD Reads time of day from real-time clock. Data returned has format
_ to 9999
UseTontogeneratepulsesfromTIMER port withperiodsfrom 100
MM:DD:HH:MM:SS or (European) DD:MM:HH:MM:SS. psec to 0.9999 sec (in 100psec increments). Period output is n
x 100psec. Interrupt not available with Ton command.
TE- I ELAPSED TIME (CONTROL).
Use TEn to monitor elapsed time from,start of an operatibn. Use
TEO
.; RESET the TE command (withouta number) to read time elapsed since
TEl
.: HALT TE2 command received.
TE2
= START
COUNTER ENABLE INTERRUPTS. COUNTER READ.
Enablescounter to send an interrupt to 3497A when specified in- Allows the results of counter measurements to be read in one of
terrupt conditionoccurs. If 3497A is set for DigitalInterrupt. inter- three ways.
n
= Oto2 rupt is sent to controller.
0
-; No interrupts 1
- Read without wait
enabled 2
= Read with wait
1
:: Intorrunt on mea- 3
= Read continuously
2
- lntcrrupt on
overflow CS slot#.value COUNTER SET.
Sets the start ooint I0to999999)for the Count UDor Count Down
slot#
= 0 to 89 functions. Also sets number of pulses inPulse Output mode (start
COUNTER FUNCTION.
value = 999999 point value = twice the number of pulses outputl.
Sets modeof operationfor the counter and startsthe function. CT
command MUST be set before CF command is executed. For n
=
n ;- 0 to 6
3 to 6, CT slot#. 1 and 2 set period measurements and CT slot#, COUNTER TRIGGER.
3 and
4 set pulse width measurements.
,
Selects edgeof inputsignal onwhichtotrigger counter. For Count
0
- Counter Stop Up or Count Down, CT slot#,
1 and 3 perform same function as
1 = Count Up n=1 to4 do CT slot#, 2 and 4.
2
:: Count Down
3
= Avg 1000Periods 1
= RisinglRising Edges
4
= Avo 100 Periods 2 = FallingIFalling Edges
" ~~ --
5 - Measure 1 Period
1 6 =: Measure 1 Period 1
13 = Risinil~all~i dies /
4 = FallingIRismg Edges
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TABLE OF CONTENTS (Cont'd)
Chapter Page Chapter Page
7 INSTALLATION AND MAINFRAME 9 EXAMPLE 3497A
CONFIGURATION (Cont'd) CONFIGURATIONS (Cont'd)
. ...........
Checking the 3497A for RS232C Example 3 Data Logging 568
.....................
Operation 349 Example 4 . Fast Scan Voltage
.................
Connecting the 3497A to Your Measurements 571
............
System.......................350 Resistance Measurements 576
RS4491423 Installation
.............. 351 Example 5
- 2-Wire Resistance
.................
Connecting the 3497A to a Measurements 576
Controller ..................... 351 Example 6
- 4-Wire Resistance
.................
Checking the 3497A for RS4491423 Measurements 579
.........
Operation ..................... 353 Thermocouple Measurements 582
Connecting the 3497A to Your Example 7
- Hardware Comp ......
System ....................... 354 Thermocouple Measurements 582
Mainframe Configuration
............. 355 Example 8
- Software Comp
......
Change Analog Addresses ..........356 Thermocouple Measurements 586
............
Set Clock Format.................360 Frequency Measurements 592
Clock Battery Backup Modes
........ 362 Example 9
- Count UpICount Down
.................
Change Line Voltage Settings ........ 363 Measurements 592
...
Change HP-IB Address Select Switch. .363 Example 10
- Period Measurements 595
.............
Set Serial Data Operating Conditions . .366 Pressure Measurements 598
Example 11
- Strain Gauge
.................
Chapter Page Measurements 598
.......
8 PLUG-IN ASSEMBLY CONFIGURATION . .369 Control Applications - Interrupts 602
......
Option 010 .....................371 Example 12 - Counter Interrupts 602
.........
Option 020 ..................... 382 Example 13
- Event Sensing 608
Option 050
.....................399 Example 14
- Using the Counter
.....................
Option 060 ..................... 410 in 3498A 611
.......
Options 0701071 ................. 433 Control Applications - Switching 614
Option 110
..................... 457 Example 15 - Voltage Switching &
Option 115 ..................... 472 Alarm Actuation ................ 614
Option 120
..................... 491 Example 16 - High Voltage Switching. .616
Option 130
.....................501 Control Applications - Control Sources . . 620
Option 140
..................... 509 Example 17 - Voltage and Current
Option 298
..................... 533 Sources ...................... 620
Chapter Page APPENDICES
... 9 EXAMPLE 3497A CONFIGURATIONS 553 A INTERFACE CONCEPTS ............. 623
Introduction
...................... 553 B SPECIFICATIONS AND GENERAL
Voltage Measurements ..............558 INFORMATION..................645
Example 1
- Guarded Voltage
..............................
Measurements ................. 558 INDEX 667
Example 2
- Single-Ended Voltage
Measurements
................. 561
Figure Page
1 A Data AcquisitionIControl System
...... 9
2 The 3497A in Data Acquisition/Control
Systems
........................ 13
3 3497A Front Panel Features
.......... 17
4 497A Rear Panel Features ........... 18
5 Power On Sequence
................ 35
6 Self-Test Display
.................. 36
7 Front Panel Display .................49
...............
.......
8 Front Panel Keyboard 55
9 DVM Data Flow Block Diagram I51
.......... 10 DVM Autorange Hysteresis 168
11 Rear Panel BNC Connectors
......... 175
Figure
12
13
14
Page
.......... Using the BBM SYNC Port 179
. ..... Option 010 Simplified Operation 185
Option 010
. Front Panel Features
Used With Assembly
............. 188
Option 01 0 . Keystroke Sequences .... 189
Option 010
. Sample Programs ....... I90
Option 020
. Simplified Schematic .... 192
Option 020
. Front Panel Features
Used With Assembly
............. 196
Option 020
. Keystroke Sequences ....198
Option 020
. Sample Programs ....... 199
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Figure
21
22
23
24
25
26
27
28
29
3
0
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
Page
Option 050
. Digital Inputllnterrupt
Assembly
..................... 201
Option 050
. Interrupt Mode.........202
Option 050
. Digital Input Mode ...... 204
Option 050
. Front Panel Features
Used With Assembly .............206
Option 060
. 100kHz Reciprocal
Counter Assembly
............... 210
..... Option 060 . Modes of Operation 215
Option 060
. Counter Measurement
Techniques
.................... 216
Option 060
. Period Ranges Chart .....220
Option 060
. Pulse Width Chart ......220
Option 060
. Front Panel Features
Used With Assembly
............. 228
Option 060
. Sample Programs .......230
Options 0701071
. Strain Gauge
Assemblies ....................233
Options 0701071
. Wheatstone Bridge
Circuit
........................ 234
Options 0701071
. Bridge Circuits for
Assemblies
.................... 235
Options 0701071
. Front Panel
Features Used With Assemblies
..... 238
Options 0701071
. Strain Gauge1
Rosette Equations
............... 240
Option 110
. ActuatorIDigital Output
Assembly
..................... 246
Option 110
. Actuator (Switching)
Mode........................247
Option 110
. Actuator Mode .
Examples.....................248
Option 110
. Digital Output Mode.....250
Option 110
. Front Panel Features
Used With Assembly
............. 252
Option
I 10 . Example, Sequential
Voltage Switching
............... 254
Option 115
. High Voltage Actuator
Assembly
..................... 258
Option 115
. Actuator Typical
Applications ................... 259
Option 115
. Front Panel Features
Used With Assembly
............. 261
Option 120
. VDAC Assembly ....... 266
Option 120
. VDAC Remote
Sensing.......................267
Option 130
. IDAC Assembly ........ 271
Option 130
. IDAC Compliance
Voltage
....................... 271
Option 140
. Breadboard Card
Assembly
..................... 276
Option 140
. Read and Write Cycle
Timing
....................... 278
Option 140
. BBM Sync Typical Scan
Sequence
..................... 281
Option 140
. Latch Mode Typical
Scan Sequence .................282
3497A Front and Rear Views
........ 325
Standard (HP-IB) 3497A
. Front and
Rear Panels
.................... 326
Figure Page
3497A with Option 232
. Front and
.................... Rear Panels 327
Line Voltage Selector Switches and
...... Continuous Clock Select Plug 330
.........
AC Power Cords for 3497A 331
Self-Test Display
................. 333
Example
- Installing Plug-In
....................
Assemblies 336
Typical HP-I6 System Inter-
.................... connection 338
...
Connecting the 3497A to the HP-IB 340
......HP-IB Connector Pin Designators 341
............. 13222N Pin Definitions 347
....... Connecting the 13222N Cable 349
RS4491423 Cable Length
Restrictions....................353
Century and Decade Address
Jumpers
...................... 358
........... Setting the Clock Format 361
............
HP-IB Address Selection 364
Removing the Outguard Controller
(HP-IB)
.......................365
......S1 and S2 Settings (Serial Data) 367
Removing the Outguard Controller
...................
(Serial Data) 368
....Option 010 - Simplified Schematic 372
Option 01
0 - Installation in
3497Al3498A
.................375
Option 010
- Relay Card Jumpers1
......................
Resistors 377
...
Option 010 - Fusing the Relay Card 378
Option 010
- Card Configurations and
Truth Table
.................... 379
Option 010
- Connecting Inputs to
..................
the Assembly 380
Option 010
- lnput Signal
Conditioning
...................381
.... Option 020 - Simplified Schematic 384
Option 020
- Installation in
3497A13498A .................388
Option 020
- Relay Card Jumpers1
......................
Resistors 390
...
Option 020 - Fusing the Relay Card 391
Option 020
- Card Configurations and
.................... Truth Table 392
Option 020
- Hardware
..................
Compensation 394
Option 020
- Software
..................
Compensation 395
Option 020 - lnput Signal
...................
Conditioning 396
Option 020
- Other Terminal Card
..................
Modifications 306
Option 020
- Connecting
................. Thermocouples 398
Option 050
- Digital Inputllnterrupt
..................... Assembly 400
Option 050
- Interrupt Mode ......... 401
......Option 050 - Digital Input Mode 403
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LIST OF ILLUSTRATIONS (Cont'd)
Figure Page
93 Option 050
- lnstallation in
3497Al3498A.
. . . . . . . . . . . . . . . .405
94 Option 050
- Digital lnput Card
Jumper Locations.
. . . . . . . . . . . . . ,407
95 Option 050
- Terminal Card
Connections
................... 408
96 Option 050
- Wire Routing in the
Terminal Card. .
. . . . . . . . . . . . . . . .408
97 Option 050
- Contact Closure to
Ground
....................... 409
98 Option 060
- 100kHz Reciprocal
Counter. . .
. . . . . . . . . . . . . . . . . . ,411
99 Option 060
- Counter Modes of
Operation.
. . . . . . . . . . . . . . . . . . . .414
100 Option 060
- Revision Letter Location. .4l6
101 Option 060
- Option ROM Installation . .4l9
102 Option 060
- lnstallation in
3497Al3498A. . . .
. . . . . . . . . . . . ,420
103 Option 060
- Counter Configurations. . ,422
104 Option 060
- SwitchlJumper
Positions.
. . . . . . . . . . . . . . . . . . . . ,424
105 Option 060
- lnput Circuit Signal
Flow
......................... 425
106 Option 060
- Signal Conditioning
Connections
................... 427
107 Option 060
- Output Circuit Signal
Flow
......................... 428
108 Option 060
- Output Circuit Pullup
Configurations. . . . .
. . . . . . . . . . . . .429
109 Options 0701071
- Strain Gauge1
Bridge Assemblies.
. . . . . . . . . . . . . ,434
110 Options 0701071 - Wheatstone
Bridge Circuit. . . . . . . . . . . . . . . . . .437
111 Options 0701071
- Bridge Circuits
for Assemblies. . .
. . . . . . . . . . . . . .438
112 Options 0701071
- lnstallation in
3497Al3498A
................. 442
113 Options 0701071
- Relay Card TIC
Comp Jumper Setting.
. . . . . . . . . . ,442
114 Options 0701071
- Terminal Card
Identification. . . . . . . . . . . . . . . . .
. .443
11
5 Options 0701071 - Connecting the
Shield
........................ 444
116 Options 0701071
- Sample '/4 Bridge
Connections.
. . . . . . . . . . . . . . . . . .446
117 Options 0701071
- Sample % Bridge
Connections...................447
118 Options 0701071 - Sample Full Bridge
Connections. . . .
. . . . . . . . . . . . . . .448
119 Options 0701071
- Sample Combined
Bridge Connections.
. . . . . . . . . . . . ,449
120 Options 0701071
- Lead Wire
Resistance.
. . . . . . . . . . . . . . . . . . .451
121 Options 0701071 - Shunt Verification. .452
122 Options 0701071
- Wagner Ground. . . ,454
123 Options 0701071
- Strain Gauge1
Rosette Equations. . .
. . . . . . . . . . . ,455
124 Option 110
- ActuatorIDigital Output
Assemblv. . . .
. . . . . . . . . . . . . . . . ,458
Figure
125
126
127
I28
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
I48
149
150
151
152
153
154
155
I56
Page
Option 110
- Actuator (Switching)
Mode
........................ 459
Option
I 10 - Actuator (Switching)
Mode
- Examples. . . . . . . . . . . . . . . ,460
Option 110
- Digital Output Mode. . . . .461
Option 110
- lnstallation in
3497Al3498A. . . .
. . . . . . . . . . . . ,464
Option 110
- Relay and Terminal
Card Jumpers. . . . . . . . . . . . . . . . . .466
Option 110
- Contact Protection
Nomograph.
. . . . . . . . . . . . . . . . . . ,467
Option 110
- Relay Contact
Protection Networks.
. . . . . . . . . . . .468
Option 110
- Wiring the Terminal
Card
......................... 468
Option 110
- Digital Output Mode
Examples. . . .
. . . . . . . . . . . . . . . . .470
Option 115
- High Voltage Actuator
Assembly.
. . . . . . . . . . . . . . . . . . . .473
Option 115
- High Voltage Actuator
Typical Applications.
. . . . . . . . . . . .474
Option 115
- lnstallation in
3497Al3498A
................. 477
Option 115
- Relay Contact
ProtectionISpeed Jumpers. . . .
. . . . ,479
Option 115
- Connecting Loads to
Actuator Assembly. .
. . . . . . . . . . . .481
Option 115
- Contact Controlling
Inductive Load.
. . . . . . . . . . . . . . . ,483
Option 115
- Diode and Zener Diode
Protection Networks.
. . . . . . . . . . . ,490
Option 115
- Relay Contact
Protection Summary.
. . . . . . . . . . . ,490
Option 120
-
VDAC. . . . . . . . . . . . . . .492
Option 120
- VDAC Remote
Sensing
....................... 493
Option 120
- lnstallation in
3497Al3498A. . . . . . .
. . . . . . . . . ,496
Option 120
- Connection
Considerations. . . . .
. . . . . . . . . . . .498
Option 120
- Connecting Loads to
the VDAC. . . . . . . . . . .
. . . . . . . . . ,499
Option 130
- IDAC. . . . . . . . . . . . . . . ,502
Option 130
- IDAC Compliance
Voltage.
. . . . . . . . . . . . . . . . . . . . . ,503
Option 130
- lnstallation in
3497Al3498A.
. . . . . . . . . . . . . . . .506
Option 130
- Wire Chart. . . . . . . . . . . .507
Option 130
- Connecting Loads to
the IDAC. . . . . . . . .
. . . . . . . . . . . . .507
Option 140
- Breadboard Card
Assembly. . .
. . . . . . . . . . . . . . . . . ,510
Option 140
- Dimensions and Comp
Ht Restrictions. . .
. . . . . . . . . . . . . .511
Option 140
- Replaceable Parts for
Assembly. . . . . . . . . .
. . . . . . . . . . .513
Option 140
- lnstallation in
3497Al3498A. . .
. . . . . . . . . . . . . ,514
Option 140
- Digital Backplane
Signals. . . . . . .
. . . . . . . . . . . . . . . .516
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LIST OF ILLUSTRATIONS (Cont'd)
Figure Page Figure Page
Option 140
. Digital Power Supply 185 Example 2
. Configuring 3497A for
Connections
................... 518 Single-Ended Measurements.......564
Option 140
. Buffering the Digital 186 Example 2
. Configuring Option 010
Reset Line
..................... 518
Option 140
. Read and Write Data 187
Bus Connections
................ 519
Option 140
. Transient Protection 188
Circuit
........................ 520
Option 140
. Typical Read and Write 189
Register Circuit
................. 521
Option 140
- Direct Digital Backplane 190
Interfacing....................521
Option 140
. 3497A Analog 191
Backplane Signals
............... 522
Option 140 . Guarded 192
Measurements
.................. 526
Option 140
- Analog Section Power 193
Supply Isolation
................. 526
Option 140
. Component Height/ 194
Protrusion Requirements
.......... 527
Option 140
. Uncompensated 195
Terminal Card (Option 010)
........530
Option 140
. Digital Input Terminal 196
Card (Option 050)
............... 531
Option 140
. Digital Output Terminal 197
Card (Option 110)
............... 532
Option 140
- High Voltage Terminal 198
Card (Option 115)
...............532
Option 298
. 3498A Extender .......534 199
Option 298
. 3498A Extender and
Accessories Supplied .............536 200
Option 298
. Fuse and Line Voltage
Switch Locations ................ 537 201
Option 298
. Power Cables for the
3498A
....................... 538 202
Option 298
- Installing Plug-In
Assemblies in the 3498A
......... 540 203
Option 298
. Interconnecting 3497A
and 3498A
.................... 542 204
Option 298
- Installing Interface
Connector Plugs
................ 543 A1
Option 298
. Multiple 3498A A2
Interconnections ................ 544 A3
Option 298
. Analog Address A4
...... Century and Decade Jumpers 547
Option 298
- 3498A Outguard A5
Decoder
...................... 550 A6
Option 298
. Setting 3497A Power A7
On SRQ
...................... 551 A8
Example 1
. DC Voltage A9
Measurements
.................. 559 B1
Example 2
- Single-Ended
.........
Measurements (Slots 0.3) 562 B2
Example 2
. Single-Ended B3
Measurements (Slot 4)
........... 563 84
(Slot 4 Only)
................... 565
Example 3
. Data Logging . DC
Voltage Measurements
........... 569
Example 4
. Fast Scan . Option 010
Connections...................573
Example 4
. Fast Scan . Rear Panel
Connections...................574
Example 5
. 2-Wire Resistance
.................. Measurements 577
Example 6
. 4-Wire Resistance
Measurements
.................. 580
Example 7 . Hardware Compensation .
........... J-Type Thermocouples 582
Example 7
. Option 020 Hardware
Compensation
.................. 585
Example 8
. Software Compensation .
........... J-Type Thermocouples 587
Example 8
. Option 020 Software
Compensation
.................. 588
Example 9
. Count UpICount Down
........ with Option 060 Assembly 593
Example 10
. Option 060 Connection
Diagram
. Period Mode ........... 596
Example 11
. '/4 Bridge Strain Gauge
Measurements
.................. 599
Example 12
. Counter Configuration
............ for Interrupt Examples 604
Example 13
. Digital lnput Assembly
................... Connections 609
Example 14 . Interrupts with Counter
.............. Assembly in 3498A 612
Example 15
. Actuator Assembly
........... Example Configurations 615
Example 16
. Motor Starter
. ....... Configuration HV Actuator 617
Example 17
. VDAC and IDAC
.................. Configuration 622
..............Typical HP-IB System 624
............. Structure of the HP4B 625
.... Asynchronous Character Structure 631
Asynchronous Character
................... Transmission 631
.......
MODEM Functions in a System 633
Asynchronous Bit Flow
............. 634
25 Pin Connector
................. 636
........ Interchange Equivalent Circuit 636
Circuit Voltage Levels
.............. 637
Warranty for 3497Al3498A (Except
...................Option 140) 660
Warranty for Option 140
........... 661
..... Ordering and Configuration Guide 663
............... 3497A System Log 665
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Preface
GETTING STARTED
When you receive your new 3497A, the first question, of course, is "How do I get
started"?. Hopefully this GETTING STARTED introduction will enable you to quick-
ly and efficiently set up and operate your 3497A in your data acquisition/control
system.
Although you are probably eager to turn the instrument on and operate
it, please
take a few minutes to examine this manual before you do so. The manual has been
designed to enable you to use the 3497A Data Acquisition/Control Unit in the most
effective manner for your data acquisition measurements and control applications.
Before we discuss how to get started, let's see how to use this manual.
HOW TO USE THIS MANUAL
When you ordered your new 3497A, you specified certain options and plug-in
assemblies. In addition, you may have ordered the 3497A as part of the 3054AlC
or 3054DL system. In this manual, information is presented in two main categories,
depending on the interface connection (HP-IB or Serial Data [RS-232 or RS44914231)
you specified for your 3497A. This manual is divided into two parts:
PART I
- OPERATING AND PROGRAMMING THE 3497A shows how to send com-
mands to the 3497A by using the front panel or from a controller via either HP-IB
or Serial Data interface and shows how to use these commands to program 3497A
operation.
Part II
- CONFIGURING THE 3497A shows how to hardware configure the 3497A,
all plug-in assemblies (Options 010 through 140) and the 3498A Extender and shows
sample ways to connect the 3497A to your system for data acquisition
measurements or control applications.
,
In addition, APPENDIX A - INTERFACE CONCEPTS introduces HP-IB and Serial Data
concepts and APPENDIX B
- SPECIFICATIONS AND GENERAL INFORMATION shows
3497A specifications and provides general information such as warranties and ship-
ping guidelines. Now, let's take a closer look at the manual organization.
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2 Getting Started
CHAPTER 1
MEET THE 3497A
This chapter describes the 3497A and shows
its capabilities in typical data acquisition and
control systems. Read this chapter for an
overall description of the 3497A and how
it
can be used to solve data acquisition measure-
ment and control tasks.
CHAPTER 3
HP-IB PROGRAMMING
This chapter shows how to send commands
from a controller to the 3497A over an HP-IB
interface. If you ordered a 3497A with Serial
Data (Option 232), skip this chapter and see
Chapter 4 for programming information.
ENOIACK HANDSHAKE
-
DATA ACQUISITION
PROGRAMS
*
EN0
*
READY FOR NEW INSTRUCTIONS>
CONTROLLER
-
CCNTROL
CHAPTER 2
FRONT PANEL OPERATION
ACK
READY
This chapter describes the command structure
for the 3497A and shows how to enter com-
mands from the front panel. If you are going to
use the 3497A without a controller, you should
study this chapter carefully. Even if you are go-
ing to use a controller with the 3497A, this is
the easiest way to learn the command struc-
ture and addressing schemes used for the
3497A.
3497A
EXAMPLE - DATA MESSAGE
OUTPUT 709; "VNIOACIO"
-h~-85A HP-IB
t
3497A
Syntax Interface Devoce Command
for DATA Select Select
Code Code
(Preset=
7) lPreset=09)
CHAPTER 4
SERIAL DATA PROGRAMMING
Shows how to send commands from a con-
troller to the 3497A over a Serial Data
(RS232C or RS4491423) interface. If you
ordered a 3497A with Option 232, see this
chapter for programming information.
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Getting Started 3
CHAPTER 5
a.
CONTROLLING THE 3497A
This chapter shows how to set up (control) the
3497A for specified actions, such as setting an
audible alarm, time of day, voltmeter settings,
etc. See this chapter to set up the 3497A
mainframe, timerheal-time clock, voltmeter, rear
panel control ports and plug-in assemblies for
your specific application.
ANALOG CLOSE
Description
CHAPTER 7
INSTALLATION AND MAINFRAME
CONFIGURATION
This chapter shows how to initially inspect and
install your new 3497A and how to configure
the 3497A mainframe for different operating
conditions.
After initial installation, you will probably need
to refer to this chapter only when your applica-
tion requires a hardware configuration which is
different from the 3497A factory settings.
DATA FOLLOWING A SELF-TEST COMMAND
Definition
Cross Guard Fails
2E2 Voltmeter Fails
3E3 Timer Fails
CHAPTER 6
COMMAND DIRECTORY
This chapter contains an alphabetical descrip-
tion of the six command groups (ANALOG,
COUNTER, DIGITAL, SYSTEM, TIMER and
VOLTMETER) used to control the 3497A. The
directory also includes a list of the command
states at power on. To avoid undesired actions
by the 3497A, you should ALWAYS consult
this directory before entering a command into
the 3497A.
R
3497A SYSTEM LOG
I \
3497A ~/N'.2222~56401 ASSEMBLY OPTION
# 2
DATE RECEIVED: 3/12/83 9 INSTALLED IN SLOT# 2
VALUESILIMITS
1 MIN TYF' MAX 1
7:::
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4 Getting Started
CHAPTER 8
INSTALL REMOVE DO NOT REMOVE
R120
8 RlOO JUMPER THESE RESISTORS
PLUG-IN ASSEMBLY
CONFIGURATION
CHAPTER 9
EXAMPLE 3497A
CONFIGURATIONS
This chapter shows some example configura-
tions for typical user applications, divided by
functional categories into data acquisition
measurements and control applications. For ex-
ample, to make a guarded (3-wire) DC voltage
measurement, see the GUARDED VOLTAGE
MEASUREMENTS example, etc.
APPENDIX B
SPECIFICATIONS AND GENERAL
INFORMATION
See this appendix for 3497A specifications,
warranty information, shipping guidelines and
manual information.
This chapter shows how to initially inspect and
install and how to configure plug-in assemblies
(Options 010 to 140) and the 3498A Extender
(Option 2981, including switchljumper settings
and typical connections to your system.
APPENDIX A
INTERFACE CONCEPTS
Refer to this appendix for introductory informa-
tion on HP-16, RS-232C and RS-449 interface
concepts.
Maximum Input Vdta~l: < 170 V peak between any two mput
termmals
Mhmum Curr-nt: 50 mA per channel non-mductlve
Maximum
Powc 1 VA per channel
Tbmd OM Direct Switched: < 1 pV Differential
Tree Swmhed:
< 2 LV D~fferent~al
CldCb.am.1 Rdrunn:
In Sene*: 100 0 t 10% in Hlgh. Lo and Guard
Relays Contacts
Only: < 1 fl per contact
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Getting Started 5
GETTING STARTED
If you have just received your new 3497A, refer to the GETTING STARTED flowchart
below for a suggested way to get started. The steps you should follow depend on
the way that you are going to use the 3497A. If you are going to use the 3497A
with a controller, see USING THE 3497A WITH A CONTROLLER which follows. If
you are going to use the 3497A in stand-alone mode (withouta controller), skip to
USING THE 3497A IN STAND-ALONE.
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6 Getting Started
I GETTING STARTED FLOWCHART I
RECEIVE 3497A
0
PROGRAMMING
INFORMATION HP-IB (GENERAL)
i--,
Chapter 3
9
SERIAL DATA
(3
Chapter 4
9
MAINFRAME AND
ASSEMBLY
CONFIGURATION
STANDARD
Chapter 7
+
Chapter 8
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Getting Started 7
USING THE 3497A WITH A CONTROLLER
If you are using the 3497A with an HP-IB or Serial Data interface, the first step is
to inspect the
3497A and then connect the instrument to your controller as shown
in Chapter
7, BUT DON'T CONNECT THE 3497A TO YOUR SYSTEM YET.
To become familiar with the
3497A, first see Chapter 1 for an overall description
of the instrument. Then study Chapter
2 for the 3497A command structure and front
panel features. Next, see Chapter
3 for HP-I6 programming guidelines or Chapter 4
for Serial Data programming guidelines. The best way to become familiar with the
3497A is to enter the command sequences shown in the examples in Chapters 2
through 4 and observe the display and/or printout.
After you have become familiar with the command structure, see Chapter
5, Con-
trolling the
3497A, to see how to set up the 3497A mainframe, timer, DVM and
the plug-in assemblies.
The final step is to connect the
3497A to your system. To do this, first determine
what function you want the
3497A to perform (DC voltage measurements, resistance
measurements, etc.). See Chapter
9, Example 3497A Configurations, for some ways
that the
3497A can be used for measurements or control applications.
If you don't find an example in Chapter
9 which can be used (or modified) for your
application, see Chapter
7 or 8 for details on how to configure the 3497A and its
plug-in assemblies. After the
3497A is properly configured and connected to your
system,
it is ready for operation.
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8 Getting Started
USING THE 3497A IN STAND-ALONE
If you are using the 3497A without a controller, first inspect and check out the in-
strument as shown in Chapter 7, BUT DON'T CONNECT IT TO YOUR SYSTEM YET.
Then, see Chapter 1 for an introduction to the features of the 3497A before you
turn the instrument on.
Next, see Chapter
2 to see how to control the 3497A using the front panel keys.
The best way to do this is to actually enter the commands shown in the examples
in the text and observe the display. And, don't worry, you can't hurt the 3497A
by entering commands, since the instrument isn't connected to your system.
After you have become familiar with how to enter commands, you can go directly
to Chapter
5, Controlling the 3497A, to see how to set up the 3497A mainframe,
timer, DVM (if your 3497A has Option 001
), and the plug-in assemblies (Options
01
0 to 140) you ordered.
The next step is to connect the 3497A to your system. To do this, first determine
what function you want the 3497A to perform (DC voltage measurements, resistance
measurements, etc.). Then, see Chapter 9, Example Configurations, for some ways
that the 3497A can be used for measurement or control applications.
If you don't find an example in Chapter 9 which can be used (or modified) for your
application, see Chapter 7 and/or Chapter
8 for details on configuring the 3497A
or its plug-in assemblies. When the 3497A is properly configured and connected to
your system, it is ready for operation.
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*
Chapter 1
MEET THE 3497A
DATA ACQUISITION/CONTROL OVERVIEW
Congratulations on your selection of the Hewlett-Packard Model 3497A Data Acquisi-
tionlcontrol Unit! Since this is quite a long title, we'll refer to the instrument as the
3497A. Your new 3497A is a precise, flexible and easy to use instrument which
can make a wide variety of data acquisition measurements and provide precise con-
trols for literally thousands of applications.
In this chapter, we'll introduce the 3497A and show how it can be used in data ac-
quisition/control system applications. To better understand the capabilities of the
3497A, we'll first present a brief overview of data acquisition and control systems
as used in this manual.
A data acquisition and control system which uses the 3497A for measurement and
control is shown in Figure
1. There are two main tasks for this system: data acquisi-
e-'
tion and control
DATA ACQUISITION
PROGRAMS
-
CONTROL
Figure 1. A Data AcquisitionlControl System
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10 Meet The 3497A
Data Acquisition
The function of the data acquisition task is to measure data inputs from a user
system. For the
3497A, data acquisition measurements are divided into five
categories, depending on the user system parameter to be measured: voltage,
temperature, resistance, frequency or pressure measurements.
In the data acquisition/control system shown, a transducer such as a strain gauge
or thermocouple is connected to an external system and samples a system parameter
such as temperature, pressure, flow rates, etc.
The transducer converts user system physical parameter inputs into an electrical
signal (voltage) which can be measured by the
3497A. The controller sends com-
mands to the
3497A (via the interface bus) to initiate measurements and transfer
measurement data for processing. Processed data can then be displayed, printed out
or stored.
Control
The function of the control task is to provide control signals from the 3497A to the
user system, either in response to status inputs from the system or in response to
commands issued from the controller.
For the
3497A, the control task is divided into three categories: interrupts, switching
and control sources. When the
3497A is set for interrupt, the controller can do other
functions and be interrupted by predetermined system status conditions.
Switching (multiplexing)refers to the capability of the
3497A to switch inputslout-
puts from one channel to another. Control sources refer to voltage or current out-
puts for controlling user system functions.
For applications such as process control, external system status reports (openlclosed,
onloff, presentlabsent, etc) are input to the
3497A. If a system condition occurs
which requires action, the
3497A outputs a signal (called an interrupt) to the con-
troller. The controller, in turn, sends a command to the
3497A to send a control
signal to the user system for required action.
In other applications, the
3497A can send a control signal to the external system
in response to commands from the controller, regardless of user system status. For
example, the controller can be programmed to initiate a control signal from the
3497A at time t, regardless of system status input conditions.
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Meet The 3497A 1 1
THE
DATA
SYSTEMS
Now, let's see how the 3497A can be used in a typical data acquisition/control
system environment. Figure 2 shows a system in which
a 3497A is interfaced to
an -hp- 85A Desktop Computer which acts as system controller. There are four main
functions in this system: data acquisition, control, communication and data
processing.
Data Acquisition
For data acquisition, on command from the controller, the 3497A receives inputs
from user system sensors, measures the input data and outputs the measurement
over
a communications interface to the controller (an -hp- 85A Desktop Computer
in this system). The controller then processes the data for display or storage.
Data acquisition measurements are divided into five categories, depending on the user
system parameter to be determined: voltage, temperature, resistance, frequency or
pressure. With the 3497A, you can measure (or determine) DC voltage, temperature,
resistance, frequency or pressure or totalize events from a wide variety of user
systems.
Control
Control functions for the 3497A are divided into three categories: interrupts, switch-
ing and control sources. For interrupts, the 3497A receives status inputs from user
systems, from the 3497A timer or from the 100 kHz Counter Assembly (Option 060)
and outputs interrupt signals to the controller for action.
For switching, the 3497A controls actuator relays to sound alarms, switch voltages,
etc. For control sources, the 3497A provides programmable voltage and current
sources for applications such as 4-20 mA loops and VCOs.
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