HP 11180A Operating And Service Manual
MODEL
11180A
DATA
STORAGE
"J
OPERATING
-hp- Part No. 11180-90000
AND
SERVICE
MANUAL
MODEL
DATA
STORAGE
11180A
Copyright Hewlett-Packard Company 1971
P.O. Box 301, Loveland, Colorado, 80537 U.S.A.
Printed: SEPTEMBER
1971
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---------HEWLETT.PACKARD---------
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The
Hewlett-Packard
thoroughly
tested
specifications
Packard
ments
the
Company
are
extent
traceable
allowed
when
Company
and
inspected
it
was
certifies that
shipped
further certifies that its
to
the
U.S.
by
the
Bureau's
CATI
and
National
0 N
found
from
the
Bureau
calibration
this
instrument
to
meet its
factory.
The
calibration
of Standards
fatility.
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Hewlett-
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WARRANTY
All
Hewlett-Packard products are warranted against defects
materials and workmanship. This warranty applies for
from the date of delivery, or,
nents listed
will
repair or replace products which prove to
the
warranty
Packard.
in
the operating manual, for the specified period.
period provided
No
other warranty
AND
in
is
ASSISTANCE
the case of certain major
be
defective during
they
expressed or implied.
are
returned
in
one
year
compo-
We
to Hewlett-
We
are not
liable for consequential damages.
Service contracts or customer assistance agreements are available
for Hewlett-Packard products that require maintenance and repair on-site.
For any assistance, contact your nearest Hewlett-Packard
Service Office. Addresses are provided
at
the back of this manual.
Sales and
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Model 1 l 180A
Table
of
Contents
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I. GENERAL INFORMATION .
1-1
. Introduction
1-
7. Accessories Furnished
(with Data
1-8. Accessories Available
(with Data Storage Only) . ....
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II. INSTALLATION
2-1. Introduction ...
2-3
. Initial Inspection ... . .
2-5. Installation
2-
7. Storage Connector . . ........
2-9
. Repackaging for Shipment . ....
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III. OPERATING INSTRUCTIONS ... . ....
3-1
. Introduction . .
3-3.
Basic
Operation . . .
3-13. Operation with Single Channel Plug-Ins .
3-18. Operation with Scanning Unit .
3-25. Sample-and-Hold Improves Digitizing .
3-29. Data Storage Used in the 2070A
3-32. How to Clear Data Storage ............
3-36. Applications .
Section
IV. THEORY OF OPERATION . .
4-1. Data Output
4-2. Present Mode (Isolated
44.
Storage Mode (Memory) . .
4-6. Panel Transfer
4-8.
IBCD
.......
4-13. Inhibit and Printer Hold
4-15. Encode (External Trigger)
4-1
7.
Basic
Storage .....
......
Storage Only) . .
...
. ............
......
of
1l180A
......... . . ........
.. ..
.......
........
...
........
.. ..
. . . .... . . .
.. .. ......
. . . . .
.....
. .
.........
into 3480A/B . . . . .
. . ....
...
...
.............
......
...
...
.......
.......
..... .. ..........
BCD) ....... ... 4-1
...........
.. ............. 4-1
. .
..........
. . . .
...
. . .
...... ........
.........
.............. 4-
TABLE
......
....
...
. .
....
........
...
.. ..
......
......
...
...
.....
.. ..
......
....
. . . . . . .
OF
CONTENTS
&~
. 1-1
1-1
1-1
..
1-1
&~
2-1
2-1
2-1
2-1
...
2-1
. .
2-1
~
3-1
...
3-1
3-2 5-8. Storage Check . .....
..
3-5 5-14. Troubleshooting
. 3-6
. 3-8
. 3-9
3-10
3-10
Page
. .
4-1
4-1
..
4-1
4-1
4-1
4-1
Section IV (Cont'd) Page
4-22. Turn-On
4-24. Printer and Dump Hold Cycling . .
4-
26. Panel Transfer . . . . . . . . . . . . . . . . . . . . . . . 4-2
4-30.
Basic
4-3
7. Preset Triggers
4-39. Jump . .
441.
Limits ......
443.
Measurement Hold ...
446.
Scanner Control
4-51. Computer Control ......
~fun
V.
MAINTENANCE . . . . ..........
5-1
. Introduction ...... .
5-3. Equipment Required .
5-5. Performance Checks
5-7. IBCD Check ..........
~fun
VI.
REPLACEABLE PARTS
6-1
. Introduction
64
. Ordering Information .... ..........
6-6. Non-Listed Parts .
Section Page
VII. CIRCUIT DIAGRAMS .
7-1. Introduction .
7-3
. Notes .........
Appendix
l
A.
CODE LIST OF MANUFACTURERS
B. SALES
AND
........
Counter ....
...............
SERVICE OFFICES
................
....
. . .
.. ..
....
. . .
........
. .
........... 4-3
......
.. .. ..
............
...
....
.....
... ............ . 4-3
......... ............
....
. . ....... .
. ..........
...
. . ............
...
. . .... .
.....
....
. .
...
...
....
. . . . ....... .
........
...
.........
....... .
........
............. 5-1
...
. .
.......
.............
.....
.....
. ....
. .... . . . . .
...
....... 4-2
...
. .
...
.
...
. . . . 4-2
....
. 4-3
&~
.......
...
....
.. ..
...
&~
.. ..
...
. .
. . .
......
..
. .... 7-l
......
..
4-1
4-2
4-3
44
5-1
5-1
5-1
5-1
5-1
5-1
6-1
6-1
6-1
6-1
7-1
7-1
J
J
' t
.,
~~m
l-1. Specifications ... .....
3-1. Storage Connector ... ...................
3-2. Storage Controls
3-3
. Methods
34.
Minimum Triggering Rates
3-5. Decoding Output Information for Single
Channel Plug-Ins
3-6. Decoding Output Information for the
3485A Scanning Unit ........ .
3-7. 3485A/Data Storage Operation for Bursts
of
of
Readings . . . . . .
...... ...... ....
Outputting Data
. .... .
......
....
(3481A3482A
................
.. ..
. . .... . 1-2/1-3
........
........
. . .
...........
, or 3484A)
....
. .
LIST
...
......
......
&~
..
..
. .
3-7
3-8
OF
3-1
3-2
3-5
3-6
3-6
TABLES
Number Page
3-8. Improvement in A/D
Using Sample-and-Hold (3482A or 3484A
10 V Range Only) . .......
3-9 Sample-and-Hold Accuracy (Digitization
is
Limited
Rate
3-10. 2070A Rear Panel Connector for
Data Storage ...
5-1. Troubleshooting
6-1. Replaceable Parts
Conversion Accuracy
........
to
1 kHz)
...
. .
...
. . . ......
.. .....
..........
. . . . . .
...
. .... . . 3-9
....
. .....
. . . . . . . . .... 3-l 0
....... . . . 5-1/5-3
.........
...
6-2/6-6
3-9
iii
Table
of
Contents
LIST
OF
ILLUSTRATIONS
Model l l l 80A
;l
I.
'
Number
1-1. Data Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3-1. Storage Operations
3-2.
Basic
Operation
3-3. A Jump
3-4. Printer Output . .
3-5. Preset Trigger
3-6. Measurement Hold
3-7.
Computer Control Enable
3-8. Data Storage Timing
3-9. Printer Format for
3-10. The Printer Format
3-11. Data Storage
3-12. Jump Printout .
3-13. Burst Operation . . .
3-14. Burst Printout . .
3-15. Sample-and-Hold
3-16. Sample-and-Hold Technique
3-17. Rear
3-18. Trigger Source for Single Channel
Plug-Ins
Command
Scanning
Panel
Unit
of
......... ...
..................
of
Data Storage
...........
..
. . .
......
......
Used with the 3485A
the 2070A Data Logger
. ........
..........
.................
2070A Data Logger .... . .
................
.......
..
.
.................
................
..............
Circuit Position
.............
. . .
. .
. . .
.
.............
...............
..............
.............
.........
.......
..........
............
..........
...
....
. . . .
...........
..
........
.
..........
Page
......
. 3-4
.
..
. .....
..
.... 3-7
. .
... 3-7
... 3-7
...
. . .... 3-9
3-10
3-10
-1
3-3
3-4
3-4
3-4
3-5
3-5
3-5
3-6
3-8
3-8
3-9
Number Page
3-19. Clearing Data Storage
3-20.
Response Time Measurement
3-21.
Preset Trigger Measurement ......
3-22.
Peak Reading
3-23. Single Input System .
3-24. Multiple Input System . .
3-
25. Random Sample .........
Schematics and Diagrams
7-1. Isolated
7-2.
Basic
Storage ...
7-3
. Address Counter, Limits
7-4. Preset Trigger, Printer Hold,
Control
7-5. Scanner
7-6.
Panel Transfer, Printer and Dump Hold
Cycling
7-7
. Inhibit, Turn-On, Continuous Cycle ....
7-8
. Measurement Add, Encode .
Control and Timing ........ . . .
7-9.
7-10. Data Output .
....................
BCD
..........
Enable
Control, Jump
.......................
........................
....
..
......
.........
..
...................
.................
.......
.
.. ..
.......
.......................
.
.......
.................
Computer
..................
...
. .
..........
.
. . . .
. . .
...
.....
.........
....
...... . 3-12
........
......
..
.
.....
....
....
...
..
...
3-10
3-11
3-11
3-12
. 3-12
3-12
7-3/7-4
7-3/7-4
7-3/7-4
7-3/7-4
7-5/7-6
7-5/7-6 I
. 7-5/7-6
. 7-5/7-6
7-7/7-8
.
...
7-9
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Model
l l 180A
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Section I
SECTION
GENERAL
1-1.
INTRODUCTION.
1-2.
The Hewlett-Packard
Digital Voltmeter may be equipped with
t
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1
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i
Storage.
into Data
output
external device. Data
recorder where readings may be taken at high speed, stored,
then outputted at
1-3. Each stored reading includes
by the 3480A/B including input voltage magnitude, range,
function, polarity, and overload. The number
stored
outputted, two additional digits are added
reading number.
3480A/B input terminals.
Up
to 50 complete
Storage at up to 1000 readings per second. The
of
these stored readings may be governed by an
10 to
is
selectable up to 50.
All
Model
Storage
20
lines per second.
output lines are isolated from the
3480A/B Multifunction
Option 005 Data
DVM
readings may be entered
is
ideal for use with a digital
all
information generated
of
When
stored readings are
to
identify the
readings
INFORMATION
include the 3481 A with a single
de
with 5
ranges and 6
channels plus 3
1-6.
may
2070A, which includes the 3480A Multifunction
5055A Digital Recorder plus any 3480 plug-in. A special
rear panel includes the major Data
the form
1-7.
6 foot
split and left unterminated.
tor for Data Storage.
1-8.
ranges, the 3484A with 5
S1
ranges and the 3485A with up
de
ranges.
Any
of
the above capabilities including Data Storage
be
purchased in a self-contained data logger, the
of
easy
to
use switches.
Accessories
"Y"
Accessories
Furnished
cable with Remote Control lines and
Available
(with
10 V
de
range, the 3482A
de
ranges, 5 true rms
Storage control lines in
(with
Data
Storage
Other end has 100 pin connec-
Data
Storage
only).
only).
to
50 input
DVM,
BCD
ac
the
lines
·1
..
''
J .
..
··
1
Option 005 Data Storage includes Isolated
1-4.
Data Storage
becomes identical to that
1-5. The 3480A/B offers a wide variety
which may be used with Data
·
l("
I "
is
disabled, the output
of
Isolated
3480A
DIGITAL
+I 4
1
~1-
.....
-
34808
DIGITAL
Ir'
' . I
2070A
VOLTMETER
(,
r 4
,
·
7 1'
VOLTMETER
DATA
LOGGER
BCD.
Storage. These plug-ins
(e:
..
-
BCD.
of
the 3480A/B
of
plug-in units
may
of
these mainframes
be
When
DATA
used
-hp-
11181 A: Data Storage Cable for use with 5050B or
is
5055A Digital Recorders. This
Control lines split and left unterminated and the
terminated with a
recorder.
Storage.
STORAGE
with
any
combination
and
Other end has 100 pin connector for Data
plug-ins.
50
pin connector for use with a digital
3481A
BUFFER
3482A
3484A
MULTI-FUNCTION
3485A
DC
SCANNING
a
AMPLIFIER
RANGE
"Y"
cable with Remote
UNIT
UNIT
UNIT
BCD
lines
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..
..
Figure 1-1. Data Storage.
1-1
·
.....
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Section I
CHARACTERISTICS
Capacity:
Information
Speed
When Used With A Digital
Storage
otherwise
Scanner
Scanning
Storage
30,
10,
20,
30,
40,
selectable using Storage Limit.
With 3481 A,
With
Input
Output
stored
overrange digit, 2-digit storage reading
overload,
3485A
storage reading
and
rate: up
Enable:
Control
Limit
40,
3482A, or
function,
: 4-digit reading plus a
range.
rate: up
the
Unit
or
50.
number,
to
1000
to
REMOTE
application
output
Enable:
to
be
(4
lines): limits
If all lines
or
3484A
and
range.
tens
readings per s may
50,000
readings
CONTROL
Recorder
of
"Low"
is
identical
application
used
with
number
are
open,
50
complete
: 4-digit reading plus a
5th
channel l.D.,
per
. . .
state
to
Isolated BCD.
of
Data
Storage
of
50
readings
3480A/B
number,
overrange digit, 2-digit
polarity,
be
stored.
s.
LINES
enables
"Low"
state
.
stored
readings
are
Table 1-1. Specifications.
Lines Available
5th
20,
Input
Causes
Dump
which
Measurement
allows
Preset Trigger
Allows preset
*Total
Storage
readings.
For
all
Data
allows
stored
readings
polarity,
overload,
Storage,
3485A
to
10,
.
Cycle Hold
continuous
When used
after
selected
Hold:
opposite
have been
Hold:
the
completion
then
outputted.
Hold
grounded.
"O"
line:
ings.*
40
readings .*
the
next
number
Limit.
input
lines
State
"High"
(logical "1
For
Special
input
with
Preset Trigger,
number
sense as
stored
prohibits
number
of
This line
stores
previous 0 readings
"1
O"
line:
"20"
30
readings.*
of
stored
Conditions
LOGIC
except
Printer
") + 2.4 V to+
Applications
of
data
of
readings
Printer
to
be
gated
all internal
of
one
complete
previous
is
normally
stores
previous
line:
stores
readings
shown
LEVELS
Hold-off:
Model l l l
...
into
storage
with
output
of
are
stored
Hold-off. Allows readings
out
.
and
external
storage
and
next
readings
used
and
10
readings
previous
depends
above
Requirements
5.5 V or
stored
.
and
with
the
are
output
next
20
on
for
open
no
data
sampling
to
Input
and
readings
selection
output.
be
50
the
50
80A
begins
but
cycle.
stored,
Cycle
read-
next
and
stored
of
;l
1
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1
'
Storage
Printer
When
Storage
Computer
Measure
Storage
Status
Internal
Jump:
Flag: used
during
storage cycle
to
be
printed.
"Low"
to
Hold-off:
disables internal sampling
Used With A
Enable:
otherwise
Control
Storage
to
(Encode):
is
which
Measure gates individual readings
drops
Measure.
remaining
state
triggered
locations
Allows a
outputted
in
Flag: line goes
"Low"
Flag: line indicates if Data
Measure
disables internal sampling
by
overrides
to
Goes
indicate
application
Computer
application
the
output
Enable:
be
used
application
turn,
entered
when
"High"
or
Inhibit
Measure.
the
selected
non-multiple
.
trigger digital
then
"High"
next
reading
is
identical
with a computer.
"High"
Data
outputting
(Interface
normal
by
Storage
drops
"Low"
during
is
ready.
of
"High"
and
gates a reading
...
of
"Low"
to
application
of
"Low"
into
storage. During
out
to
acknowledge
Storage
data
but
requirement
Limit
of
10
recorder. Remains
to
indicate
printing
state
state
Isolated BCD.
of
of
is
ready
Storage
by
Hold):
allows DVM
readings
cycle
(by digital recorder)
out
enables
"Low"
state
state
initiates a reading
an
storage.
each Measure. Line
to
is
storing
remaining
application
of
filling all storage
before
outputting
to
data
of
storage.
Data
allows Data
output
accept
"Low"
to
be
be
stored
"High"
is
ready
then
drops
Storage,
cycle,
the
next
data
.
of
"Low"
externally
data.
by
then
Printer
Storage
BCD
Output
"Low"
Hold-off:
"High"
"Low"
Flag:
"High"
"Low"
and
"High"
"Low"
(logical
State
(logical "1
(logical
State
(logical "1
(logical
Status
State
(logical
(logical
"O")
0 V
or
through
")
+ 3 V
10
+
16
400
+5V
"0") 0 to+
current
")
;;;,,
+ 5 V, 2 mA max
;;;,,
+ 3 V,
"0")
<+
Flag:
"1")
;;;;.+
;;;,,
+ 3 V,
"0")
<+
to+
0.7 V, 2
contact
.:;;;
to+
mA
max
v
µA
max
0.5
V,
Output
10
0.5
V,
Output
5 V, 1 mA
10
0.5
V,
mA
closure
to
250
Requirements
16
source
source
mA
12
mA
12
ground
n.
V
current
current
10
µA
max
Characteristics
source
max
source
mA
max
Characteristics
max
source
max
source
mA
max
sink
sink
sink
current
at
at
sink
current
current
current
current
current
current
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Model l l l 80A
•.
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Se
ction I
Table 1-1. Specifications (cont'd).
GENERAL
1
1
. ·1
I
Isolation
characteristics:
are referenced
isolated
make
floating
Common-Mode
control
Operating
Storage
temperature: -40°c
Power:
115 V or
(i
ncluding
Weights
3480A
basic
including
shipping:
to
from
earth
the
measurements and
Rejection
lines are
utilized
temperature:
230
plug-in,
options,
instrument:
options:
17
lb
output
ground
measurement
specifications when
.
0
o
c
to
55°C
to + 75°c
V ± 10%,
normal
11
lb
2 oz (5,25 kg).
12
lb
(7,65
8 oz (5 ,7 kg.).
kg) .
data lines and
(instrument
input
terminals.
maintain
.
.
48
Hz
to
envi
440
ronmental
input
control
lines
chassis) and are well
Instrument
all
Normal
the
Hz,
60
conditions)
will
and
data and
VA
max
.
34808
basic
instrument: 12
including
shipping:
3481A
basic
instrument
shipping
3482A
basic
instrument: 4 lb
i
ncluding
shipping
3484A
basic
instrument
including
shipping: 8 lb
3485A
basic
instrument: 5 lb
including
hipping
s
options: 13
18
lb
(8,1 kg) .
: 2
: 5
lb
(2,3
options
: 7
: 4
lb (3,
: 4
options
: 6
(3,6
options
lb
: 7
14
: 8
lb
lb
lb
11
kg).
(1,8 kg).
lb
15
kg).
lb 6 oz (1,
lb
kg) .
14
lb 3 oz
oz
(4
12
oz
(5,71 kg).
8 oz (6,
15
oz (1,2 kg).
4 oz (1,9 kg) .
97
(2,76
kg).
kg).
2 oz
oz (2,6 kg).
(3,2 kg).
kg).
kg).
.1
1-3
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Section
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SECTION
IN
STALLATI
2-1.
INTRODUCTION.
2-
2.
This section contains installation and shipping infor-
mation for the
2-3.
INITIAL
2-4.
Each l l l 80A has been carefully inspected prior to
shipment and should
of
mars or scratches.
should
have occurred in transit or for deficiencies otherwise.
there
is
carrier;
attributable to shipping, refer to the statement
on the cover page
Section V to check the instrument performance. Refer to
Section I for the list
instrument.
2-5.
INSTALLATION
2-6. Contact
Office
regarding installation
3480A/B. (See Appendix B for office locations.)
2-7.
STORAGE
2-8.
See
Model
l l l 80A.
INSPECTION.
be
in perfect electrical order and free
To
confirm this, the instrument
be
inspected upon receipt for damage that might
damage due to shipping, file a claim with the
if
there are electrical or mechanical deficiencies not
of
warranty
of
your
CONNECTOR.
Table
3-1
this manual.
of
equipment supplied with the
OF
11180A
IMPORTANT
local Hewlett-Packard Sales and Service
of
for the
Use
the procedures
INTO
3480A/B.
the
11l80A
signal
arrangement at the
into
an
existing
If
of
II
0 N
Storage Connector.
2-9.
REPACKAGING
2-10.
If
the instrument
for service or repair, attach a tag to the instrument
describing the work to be accomplished and identifying the
owner and instrument. Identify the instrument by serial
number, model number and name in any correspondence.
you have any questions, contact your local Hewlett-Packard
Sales
and Service Office.
locations.
2-11.
If
the original shipping container
the instrument in the container with appropriate packing
meterial and
metal bands. A
nearest
2-12.
If
heavy carton or wooden box with an inner container.
the instrument with heavy paper or plastic and place
cardboard strips across the face for protection before
placing the instrument in the inner container.
material around
outer container
the container with "DELICATE INSTRUMENT," or
"FRAGILE".
-hp-
an
seal
Sales
-hp-
FOR
SHIPMENT.
is
to be shipped to Hewlett-Packard
See
Appendix B for office
is
to be used, place
the container
new
container may be purchased from your
and
Service
container
all
sides
of
well
with strong tape or metal bands.
well
with strong tape or
Office.
is
not to
the inner container, and
be
used, then use a
Use
If
Wrap
packing
seal
the
Mark
J
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2-1
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Section III
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SECTION
OPERATING
3-1.
INTRODUCTION.
3-2. Each stored reading includes all information generated
by the
function, polarity, and overload. Two additional digits are
3480A/B including input voltage magnitude, range,
Table 3-1. Storage Connector.
d1~
I()
52
76~
........................
...........................
I I - • • • • • • • • • • • • • • • • • • • • • • - ' I
•••••••••••••••••••••••
Ill
INSTRUCTIONS
added to identify the reading number (i.e. numbers 1
through 50).
3480A/B input terminals. Tables
storage control signals and list the pin numbers
control and data signals at
All
BCD
output lines are isolated from the
3-1
and 3-2 describe the
the
Storage Connector.
~~~
~rc')'I
~100
75
of
the
r
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PIN - SIGNAL
I - A
I}
BI
_
2
3-
4-2
5-
6-
7-
8-
9 -
10-
11
- OVER RANGE
121314-
1516-
17-
1819-
20-
21
22-
23
24-
Scanner or Storage Units
I
10
20
100
200
1000
2000
GROUND
A
RAN(;E}
B RANGE
D
FUNCTION}
E FUNCTION
POLARITY
OVERLOAD
IOA
} Storage
20A
PRINT
GROUND
INHIBIT
PIN-
{
I.D.
Data
Tens Channel I.D. c(
on
Scanner
Range
on
Scanner
Tens
I.D. <
SIGNAL PIN - SIGNAL
26
- C I
_
DI
2 7
28-
4
2·
9-8
30-
40
31
-
80
32
-
400
33-
800
34
-
4000
35 -
8000
36
-
GROUND
37-
GROUND
38
- C RANGE
39
- GROUND
40-
RATIO
41
- GROUND
42-
GROUND
43-
GROUND
44-
40A
45
46
- MEASURE
47-
INHIBIT
48
- STORAGE FLAG
49
50-
GROUND
83
- COMPUTER CONTROL ENABLE
84
- PRESET TRIGGER 0
85
86
-
87 - INPUT CYCLE HOLD
88
89
- STATUS FLAG
90
- PRESET TRIGGER
91
- PRESET TRIGGER
92
- JUMP HOLD
93
- MEASUREMENT HOLD
94
- STORAGE HOLD
95
- JUMP
96
- SCANNER CONTROL
97
- STORAGE
98
- STORAGE
99
- STORAGE
100 - STORAGE
GROUND
LIMIT
LIMIT
LIMIT
LIMIT
II
180A-8-
20
10
ENABLE
40
10
20
30
2496
3-1
Section III
Table 3-2. Storage Controls.
Model
l l l 80A
':
l
'·
ENABLES
Storage Enable - Activates Data Storage; otherwise
like
the
Option
004
Isolated
Computer
Scanner
Storage Limit
FLAGS
Status
Storage Flag_ Line goes
HOLDS
Inhibit
Measurement
Control Enable - Application
Storage
to
be used
with a computer.
Control
Command.
All
four
locations
readings are
mand may
up
with
or
50
may be reached
Flag - Line
and
"low"
command;
- Disables
3481,
3482,
3485A
. Ground this line when external triggering
but
allows manual sampling. When released
Enable - Allows
10,
20,
30,
lines
open
up
to
the
outputted.
be
used
the
last reading so
is
"high"
while
data
goes
"low"
the
and
Hold - Prevents
front,panel SAMPLE RATE
3484,
BCD
.
of
the
Scanner
40
- Limits
the
allows
Storage Limit
Scanner Control Enable
to
cause
the
that
and
the
while
is
being
outputted
"high"
when
the
and
both
number
50
stored
must
unused storage positions
a Storage Limit
data
outputted.
data
is
being
to
acknowledge each Measure
next
Measure may be accepted. reading so
the
free running ability
internal
"low"
readings.
be filled
entered
.
and
the
11180A
acts
state
allows Data
to
give a
Jump
of
stored
readings.
All
storage
before
Jump
20,
to
be used.
any
Com-
to
fill
30,
40,
storage,
of
the
of
the
or
of
10,
into
control
is
external sampling,
momentarily,
allows
one
be
used with
Printer Hold -
by
the
Dump
Input
doesn't
set
COMMANDS
Measure·
used
line may
Jump
· Causes
reached
Preset Trigger - Allows a preset
prior
"O"
line -
"10"
line - Stores
"20"
line·
*Total
lines;
it
50
complete
the
3485A.
The
3485A.
Hold · Inverted Printer Hold.
Cycle Hold -
Trigger.
When
to
to
Stores
number
readings per trigger
printer
go
and
and
Stores
The
into
the
Output
Computer
input
and
be
that
output
used
to
trigger
the
unused storage positions
a Storage Limit
the
data
after
the
Zero readings prior
10
readings prior
20
readings prior
of
stored
input
and
output
storage cycle. It
disables internal triggering, including
Storage Unit
Control Enable
the
outputed.
trigger.
readings
is
continuously
Cycle. It may be overridden
storage
data.
3480.
of
10,
20,
number
illustrated here.
to
trigger
to
trigger
to
trigger
depends
of
inputs
is
held low, this line
When CCE
to
fill
up
30,
readings
and
and
and
on
with
40,
or
to
50
after.*
40
after.*
30
after.*
the
Storage Limit
is
is
not
data
by
high, this
the
50
may be
be
stored
to
that
and
Pre,
last
is
I.
··
1.
'
f
l
3-3.
BASIC
3-4. The following rules apply to operation
OPERATION.
of
Data
Storage:
a. The number
outputs from Data Storage
will
of
always equal the Storage Limit setting (10, 20, 30, 40, or
50).
b.
The number
Storage Limit unless Jump
of
readings stored must always equal the
is
used to artificially begin an
output cycle.
c.
The Storage Limit must equal or exceed the number
of
readings to be stored.
d.
The maximum input rate (into storage)
The maximum output
3-5. Readings may
a.
Printer Hold-Off (for
b.
Dump Hold (opposite sense
rate..;;;
be
gated out
50,000/s.
of
use
with printers).
as
Data Storage by:
Printer Hold-Off).
..;;;
1000/s.
c. Measure (special case with Computer Control Enable
grounded).
3-6
. Figure 3-2 illustrates the fundamental operation
of
Data Storage with a printer. Storage Flag falls low to
indicate that the first stored reading
recorded. Printer Hold-Off
the printer (or other device)
Hold-Off drops low, Storage Flag
is
transmitted back to signal that
is
taking data.
will
later to signal that the next reading
(not shown)
is
identical to Printer Hold-Off but
opposite sense. Status Flag indicates
is
ready to
When
be
Printer
drop low 16 to 20 µ s
is
ready. Dump Hold
of
the
if
Data Storage
storing (high) or outputting (low). The output cycle
continues until the Storage Limit
3-
7.
A non-multiple
gated out using Jump
the desired number
storage, a Jump
The last reading
of
10 readings may be stored then
as
shown in Figures
of
readings have been entered into
is
issued which begins the output cycle.
is
repeated to fill the number
is
reached.
3-3
and 3-4. Once
of
outputs to
equal the Storage Limit.
If
3-8.
Data Storage
and the number
is
used with a 3485A Scanning Unit
of
channels scanned
is
less than the Storage
Limit, grounding Scanner Control Enable causes an auto-
matic Jump once the
Last
Channel
is
reached.
More
details
on use with the scanner follows the next section.
ll
is
3-2
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r
Model 11180A
3-9. Preset Trigger may be used
Triggering
internally. When any
grounded, the
dumped
3-5. The sum
"X"
is
continuous either from an external source or
"X"
out
plus the next
of
equals ''O",
of
the three Preset Trigger lines are
number
"X"
and "Y" equals
"1
O"
, or
Cycle Hold must be grounded in this mode
Input Cycle Hold causes readings
to
begin an
of
previously stored reading
"Y"
readings
the
"20"
previous readings. Input
output
as
shown in Figure
Storage Limit, and
of
to
be continuously
cycle.
operation.
inputted without any output unless given a Preset Trigger.
3-10. Grounding Measurement Hold stops
both
from external and internal trigger sources.
inhibits
Measurement Hold momentarily
causes Data Storage
both
input and output storage cycles. Ungrounding
as
shown in Figure 3-6
to
cycle through one complete input
and output cycle automatically. Triggers equal
all
sampling
It
also
to
the
Storage Limit are counted automatically.
3-11. Grounding
COMPUTER CONTROL ENABLE allows
one line, MEASURE, to be used to gate readings into and
Section III
out
of
storage
PRINTER
readings out. The nature
to
is
acknowledge each MEASURE for both storage and
output
cycles. This mode
computer systems or systems with a limited number
as
shown in Figure 3-7.
DUMP
HOLD or
HOLD-OFF are no longer needed to gate
of
STORAGE FLAG also changes
of
operation
was
designed for
of
control lines. The timing for Data Storage running at a
50 kHz
3-12. The question is which method
should be used for various applications?
source counts the triggers (i.
Scanni
cycle begins more or less automatically.
is
output
rate
is
shown in Figure 3-8.
of
e.
triggers from the 3485A
ng
Unit are automatically counted), then the output
If
the trigger source
free running, one
of
the Preset Trigger lines may be used
storing readings
If
the trigger
or Measurement Hold may be used. The Preset Trigger has
DVM
the advantage since the
may be triggered prior to a
storage cycle to allow the proper range and function to be
set up manually. Preset Trigger requires exactly the same
type
of
input as any other trigger and
compatible with a given system. Figure
is
most likely
3-1
should make
to
be
this selection clear.
1
J
. 1
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r
YES
NO
OUTPUT
IS
AUTOMATIC
~-----1
.---------f
USE
SCANNER
CONTROL
START
OUTPUT
USE
JUMP
TO
START
OUTPUT
START
STORAGE
OUTPUT
CYCLE
UNGROUNDING
HOLD
USE
PRESET
TRIGGER
(INPUT
CYCLE
HOLD
GROUNDED)
ENABLE
TO
ANO
BY
MEASUREMENT
"O"
llllOA-l-2Sl3
~----I
Figure 3-1. Storage Operations.
USE
PRESET
"10"
CYCLE
OR
HOLD
TRIGGER
"20"
(INPUT
GROUNDED)
3-3
Section III
INTERNAL
OR
EXTERNAL
TRIGGERS
Model l 1180A
I'
J
(UP
TO
1000/S)
l'.
STORAGE
FLAG
(FROM
~~~~~-
PRINTER
DVM)
-~~~--1·r--~~--"'-"1~~~~~
HOLD-OFF
(TO
~:-.--iU
STATUS
FLAG
(FROM
OVMI
STORAGE
10, 20,
DEPENDING
l
lll!IOA-8-251
..
Figure 3-2. Basic Operation
Basic
operation
readings are ready . Printer
automatically
but
of
opposite
or
outputting
CYCLE
30,40,or
50
READINGS
ON STORAGE
of
Data Storage uses Storage Flag
outputting
sense.
Status
data.
16TO
20,..s
DVM)
UNIT
Hold-Off
data.
Dump
I
I
TIME
TO PRINT
(50TO 100ms)
OUTPUT
10.20.30,40,
OR
DEPENDING
ON
of
Data Storage.
is
used with digital recorders for
Hold
(not
Flag indicates if Data Storage
CYCLE
50
READINGS
STORAGE
shown)
to
0
00
UNIT
indicate when
is
identical
is
storing
STORAGE
LIMIT=
11110&-1-2011
Printer
made
on
number
issued
repeated
10
output
the
of
to
begin
three
1050014679
0950014679
0850014679
0750014679
0650012437
0550001956
0450002458
0350011400
0250010499
0150009567
POLARITY/OVERLOAD
Figure 3-4. Printer Output.
on a 2070A
100
readings
the
times.
mV range,
is
output
Data Logger when 7
stored,
less
than
the
cycle. Note
7th
READING
3
}
and
TIMES
JUMP
printed
Storage Limit, a
that
the
REPEATED
WHEN
IS
ISSUED
de
readings are
out.
Since
Jump
7th
reading
the
must be
.]
is
J
INTERNAL
OR
EXTERNAL
TRIGGERS
-i
llJIOA-
n I
~
JUMP
STORAGE
PRINTER HOLO·OFF (
1
STATUS
8-2515
---uu----
0 :
NUMBER
OF
READINGS
LESS
THAN
STORAGE
!FROM
(FROM
STORAGE
DVM)
TO
OV~I-
DVMl
UMIT DELAY
CYCLE
(TO
DVM)
FLAG
FLAG
Figure 3-3. A
A
Jump
readings. In this case,
command
Limit.
After
output
cycle; otherwise, storage will wait
required
to
fulfill
to
the
fill
may
the
all triggers have been issued, a
up
to
set
the
by
number
(UP
TO
1000/s)
1
_
___r--u--
Jump
be
used
number
Storage Limit.
;;.
50
µs
DEPENDING
Command.
to
output
of
readings
Jump
for
The
I
I
OUTPUT
CYCLE
10
. 20,30.40.
OR
50
READINGS
ON
STORAGE
a non-multiple
is
less
than
is
given
the
remaining triggers
last reading
LIMIT
to
is
Storage Limit.
of
10
Storage
begin an
repeated
EXTERNAL
TRIGGERS
WP
1IULJ
I
INTERNAL
1IUlf
STORAGE
PRINTER
INPUT
PRESET
l
lllOA·B-2!117
ooo
TRIGGERS
ooo
FLAG
HOLO·OFF
INPUT
ICON
TINUOUSL Y INPUTS
INTO
CYCLE
HOLD
TRIGGER
"O"
1JlJ1J1Jliljo
(UP
lILilJu---
CYCLE
STORAG
(GROUNOEOJ
Figure 3-5. Preset Trigger.
Preset Trigger "O" may
storage
and
output
Cycle Hold
equal
the
at
the
rate
manual
adjustments
Storage Limit.
cycle. Triggers may
must
be grounded.
of
the
trigger source. This allows
on
TO
1000/sl
TO 40/
s)
READINGS
E!
be
used
The
DVM samples prior
his
system.
to
automatically
be
The
number
(OUTPUTS 10,
external
of
oo
OUTPUT
CYCLE
20. 30.40.
OR
READINGS!
start
one
complete
or
internal.
readings
the
taken
to
a Preset Trigger
user
to
50
Input
will
make
'.
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3-4
u
J
.
.(
---.
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Model l l l 80A
1
1JiJCF:•::
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STORAGE
PRINTER
110,20,30,40,
AUTOMATICALLY
>
5~1
MEASUREMENT
ONE
INPUT
llllOA-1-2'
11
1JiJulJLrlrooo
OR
·
~lil_r----
FLAG (FROM
OVM)
HOLD·OFF
ITO
OVM
)
INPUT
CYCLE
0R
50TRIGGERS
ACCEPTED
I
HOLD
UNHIBITS
OUTPUT
CYCLE
SAMPLING
TO
TAKE
AND
TIME
TO
BUT ALL
PLACE)
PRIN
T
OWS
OUTPUT
CYCLE
MEASURE
I I I
IOA-8-2527
17T022µs
I
I
16
TO
•
20µs
Section III
v
1
TO
2µs
J
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Figure 3-6. Measurement Hold.
Measurement
storage and
Sampling does
proper number
automatically
Hold
output
not
of
.
MEASURE
~~~~~~~~~~~~,--------"----.
flfiJ
I I
1
STATUS
FLAG
STORAGE
COMPUTER
INTERNAL
STORAGE
Figure 3-7. Computer Control Enable.
COMPUTER
readings
line
(MEASURE). PRINTER
STORAGE
and
output
to
be
FLAG
cycles .
CONTROL
gated
may be
used
1000
to
by
prior
/s
;>
1
ms
cycle
take place
triggers equal
UP
TO
UuulJ
INPUT
CYCLE
ENABLE
CONTROL
ENABLE
MEASURE
INHIBIT
LIMIT ("10" "20"
into
acknowledges each
OR
"40"1
ENABLE
storage and
HOLD-OFF
automatically
breaking this line
to
or
to
the Storage
start one complete
after a storage cycle. The
UP
TO 50,
..
20µs
momentarily.
Limit
000
/s
are counted
I
~____.I
OUTPUT
CYCLE
}
'"""""'"
may be grounded
out-of
storage using the
is
MEASURE
no longer needed .
in
both
to
storage
allow
same
Figure 3-8. Data Storage Timing.
Data Storage running
Measure is
Storage Flag remains high
grounded
acknowledged
to
achieve this speed.
Table 3-3. Methods
Lines Used
Jump
Preset Trigger
"O",
"1
O",
Input
Grounded
Measurement
Released
Ground
3-13.
or "20"
Cycle
Hold
from
OPERATION
Hold
at a 50
with
WITH
kHz
output
a high going Storage Flag. The
16
to
of
Outputting Data.
Triggers
10,20,30,40,orSO
Triggers < Storage
Last reading repeated
Storage
Trigger source may free run
Triggers counted
DVM
storage
Trigger source may free run
Triggers counted
DVM
SINGLE
rate. Each
20 ms. Continuous Cycle
Trigger Requirement
= Storage
Limit
samples before and
but
not
samples
only
CHANNEL
low
Limit
Limit
to
fill
automatically
during
while
printing
automatically
when storing
PLUG-INS.
going
3-14. There are 3 single channel plug-ins available for use
with the
3480:
3481A Single 10 V de range
3482A 5
3484A 5
de
ranges from 100 m V
ac
or de ranges from I 00 m V
6 ohms ranges from I 00
to
1000 V
il
to
to
I 000 V
I 0 Mil.
is
3-5
Section
III
Model
l l l 80A
3-15.
In
either
de
or ohms, these plug-ins are able to make
1000 correct readings/s. Within 1 ms, the 3480
is
able to
respond to a full-scale change and digitize. These single
channel plug-ins combined with the
3480 main frame are
able to act like a low cost, 1 kHz A-to-D converter. Data
Storage allows up to 50 readings taken at up to 1000/s to
be
stored and printed.
3-16.
As
shown in Table 3-4, these plug-ins contain their
own sample-rate oscillator able to take from 1 reading/s up
to approximately
40 readings/s. These plug-ins must
be
externally triggered (throup,h the main frame) to achieve
higher sampling rates.
Table 3-4. Maximum Triggering Rates.
Internal External
3481A
3482A
3484A
*Variable
front
panel sample-rate
3-17. Data Storage stores
available from the
mation
is
printed and the format. The format shown
applies to the
3480. Figure 3-9 shows what infor-
2070A Data
<(40/s*
<(40/s*
<(40/s*
all
of
the information normally
Logger
<( 1000/s
<( 1000/s
<( 1000/s
control,
not
calibrated.
which rearranges the
columns into an easier to read order. Decoding for this
information
is
given
in Table 3-5.
Table 3-5. Decoding
Single Channel Plug-Ins (3481
100mV
1000
mV
10V
100
v
1000
v
VDC
AC (AC) 1
OHMS
AC (DC)
DC
RATIO
AC (AC)
OHMS
AC (DC)
Polarity /Overload
POSITIVE
NEGATIVE
POS.
OVER
NEG.
OVERLOAD
Output
Range Code
1oon
1ooon
10
100
1000
10Mn
Function
RATIO
RATIO
RATIO
LOAD
Information
A,
3482A,
kn
kn
kn
5
4
3
2
1
0
Code
0
2
3
4
5
6
7
Code
0
1
2
3
or
3484A).
for
ri·.
I .
I .
Tl:
' .
"
1".
J
. .
I .
0 5 4 0 1 1 1 4 2 9
1
STORA~J
l.D.
RANGE
POLARITY/OVER
l1REA~ING
STORAGE
FUNCTION
LOAD
x 0 4 0 1 1 1 4 2 9
RANDOM]
NUMBER
ZERO
RANGE
lllSOA-B-2520
Figure 3-9. Printer Format
The
printer
two
format
single channel plug-in (3481
columns
same
.
Storage and a
first
meaning when Storage
remain the
l~
READING
FUNCTION
POLARITY
for a 2070A
of
the
print
is
not
STORAGE
NOT
/OVERLOAD
for
2070A Data Logger.
Data Logger equipped
A,
out
on a
enabled. The remaining columns
3482A
2070A
ENABLED
ENABLED
with
3484Al.
Data
The
or
Data Logger lose
3-18.
OPERATION
WITH
SCANNING
UNIT.
3-19. The 3485A Scanning Unit may be used to scan up to
50 2-wire input and measure each input on ranges from
100 m V to 10 V. This scanner is designed for low level
transducer applications and uses FET switches to achieve a
speed
of
1000 channels/s.
3-20. Data Storage allows the speed
Unit to
be
used economically with a printer.
of
the 3485A Scanning
Up
to 50
channels may be scanned and stored in 50 ms then printed
out at
10 lines/s.
3-21. The 3485A may be programmed to scan at any
rates from 1 channel/s to 1000 channels/s as selected
front panel using Channel Delay. Any number
up to
50 may be scanned using
Last
Channel settings
of
channels
of
on
on
six
the
the
front panel.
3-22. Figure
format. The format shown applies to the
Logger
order. Decoding for this information
3-10 shows whatinformation
is
printed and the
2070A Data
which rearranges the columns into an easier to read
is
shown in Table 3-6.
:1
I .
' }
/.:
J.
3-6
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