Data Translation DT2814 User Manual

Page 1
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Document
UM-05143-0
User
Manual
for
DT2814
IBM
PC/XT/AT
A/D
CONVERTER
COMPATIBLE
BOARD
Copyright©
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
1985
Data
Marlborough,
by
Translation,
100
Locke
Data
MA
Translation,
Inc.
Drive
01752-1192
Inc.
Page 3
All may
rights
be
transmitted, mechanical, otherwise, Data
Translation,
reserved.
reproduced,
in
by
without
any
No stored form
photocopying,
the
prior
Inc.
part
in
by
of
a
any
written
this
retrieval
means,
recording,
publication
system,
electronic,
permission
or or
of
Information believed
responsibility
for
its
use; other its
rights
use. otherwise Translation,
furnished
to
be
nor of
No
under
Inc.
First October,
October,
accurate
is
assumed
for third license
any
Edition
1985
by
Data
by
any
infringements
parties
is
patent
1985
Printing
Translation,
and
reliable;
Data
which
granted
however,
Translation,
of
may
result
by
implication
rights
Inc.
patents
of
is no
Inc.
or
from
or
Data
BASIC
IBM
PC,
is
IBM
International DT2814 Data
is
Translation
Translation,
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
a
trademark
PC/XT,
a
trademark
Inc.
and
Business
is
of
Dartmouth
IBM
Machines
of
a
registered
PC/AT
Data
College.
are
Corporation.
Translation,
trademark
trademarks
Inc.
of
of
Data
Page 4
PREFACE
CONTENTS
CHAPTER
CHAPTER
CHAPTER
1
1.1
1.2
2
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
3
3.1
3.2
3.2.1
3.2.2
3.3
3.3.1
3.3.2
3.3.3
3.
3.
3.4
INTRODUCTION OVERVIEW
ACCESSORIES . . . . •
. . • . . • .
• • • •
SPECIFICATIONS
~NTRODUCTION
ANALOG ON-BOARD
INPUTS . . . . . • • •
CLOCK INTERFACE CHARACTERISTICS POWER
REQUIREMENTS . • . .
. • • . •
. . . .
. . . . . . . . . .
. . . . . . . . . .
. . . . . . . . . .
. . . . . .
PHYSICAL/ENVIRONMENTAL . . . . . . . .
CONNECTORS
COMPATIBLE
UNPACKING
AND
CABLES
SCREW
AND
TERMINAL
CONFIGURATION
. . • . • • • .
PANELS
INTRODUCTION . . . . . . • • . • • . •
UNPACKING
NO
APPARENT
VISIBLE
. . . . . . . . . . . . . .
DAMAGE
DAMAGE
. • • . . • • . • • . . . . .
. . . . • . • • .
CONFIGURATION . . . . . . . . . . . .
4
BASE INPUT CLOCK INTERRUPT LEVEL . • • .
JUMPER
ADDRESS SELECTION . . . • . . . .
RANGES BASE
. . . • • . . . . • • . • .
FREQUENCY
SELECTION . • • . . . .
...••....•
SUMMARY
• • . . . . • . . . • • . .
• • • •
. . . .
. . . . .
1-1 1-1
2-1
2-1
2-3 2-4
2-5 2-5 2-5
2-6
3-1 3-1 3-1 3-2 3-4 3-4 3-5 3-6 3-7 3-7
CHAPTER 4
4.1
4.2
4.3
4.4
4.5
CHAPTER 5
5.1
5.2
5.2.1
5.2.2
5.2.3
5.3
5.3.1
5.3.2
INTERCONNECTIONS
INTRODUCTION . . . . • • • • . •
CONNECTION
USER
CONNECTION . . . . . • . .
CONNECTIONS SINGLE-ENDED
ARCHITECTURE
TO
IBM
TO
SCREW
CONNECTION
AND
OPERATION
PC
BACKPLANE TERMINAL
SCHEME
. . .
PANELS
. • • .
. . . . .
. • . . .
. . . . .
. . . . .
. . . .
INTRODUCTION . • . • • • . • • • • . • • • . •
ARCHITECTURE . . . • • . . • . . . • • . . • •
CONTROL STATUS REGISTER (BASE +
A/D
REGISTER (BASE +
DATA
REGISTER (BASE +
0;
0,
1;
WRITE
READ
READ
ONLY)
ONLY)
ONLY)
••.•
.•..•
....
OPERATION . . . . . . . • . • . . • • • . • . . .
INITIALIZATION
A/D
CONVERSION . . . . • . . . • . • • .
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. . . • . • . • . . • . .
iii
4-1
4-1
·4-
4-4 4-6
5-1 5-l 5-2 5-4 5-6 5-7 5-7 5-7
3
Page 5
5.3.3
PROGRAMING
SEQUENCE
..
. . . . . .
5-8
CHAPTER 6
6.1
6.2
6.2.1
6.2.2
6.2.3
6.2.4
6.3
6.3.1
6.3.2
6.3.3
6.3.4
6.3.5
6.3.6
CHAPTER 7
7.1
7
.1.1
7.1.2
APPENDIX A
CALIBRATION INTRODUCTION • . . • • . • • • . • . • • • . • • •
GUIDELINES • • • • • • • . • • • • • • • •
ASSUMPTIONS • . • • • . • • • • • •
EQUIPMENT REQUIRED • . • • • • . • • • • • • PRECAUTIONS . • . • • • • • • • • • • • • • INTERCONNECTIONS • • . • • . • • • . • •
CALIBRATION
PROCEDURE
• • • . • • • . • . UNIPOLAR OFFSET ADJUST • . • • • • • • • • • UNIPOLAR GAIN ADJUST (FULL SCALE) BIPOLAR OFFSET ADJUST BIPOLAR GAIN ADJUST BIPOLAR OFFSET ADJUST BIPOLAR GAIN ADJUST
EXAMPLE
PROGRAMS
(+/-5V
(+/-5V
(+/-2.5V
(+/-2.5V
RANGE)
INTRODUCTION • .
EXAMPLE EXAMPLE
BOARD
PROGRAM PROGRAM
ASSEMBLY
1 2
DRAWING
RANGE)
RANGE)
RANGE)
.••••
• • .
••.•••• .••..
. • .
. . . . .
. . . . . . .
. . . . . .
6-1 6-1 6-1 6-2 6-2 6-2 6-2 6-3 6-3 6-3 6-4 6-4 6-4
7-1 7-1
7-3
INDEX
iv
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Page 6
FIGURES 3-1 4-1
4-2 4-3
5-1 5-2
5-3
6-1
BASE ADDRESS CONNECTION
TRANSLATION
CONDITIONING PANELS . . . . . . . • . . . .
CONNECTION SCREW SINGLE-ENDED CONNECTION
CONTROL
STATUS REGISTER . . . .
A/D CONNECTION
TERMINAL
REGISTER • .
DATA
SELECTION
OF
THE
DT2814
SCREW
OF
REGISTER . . .
OF
TERMINAL/SIGNAL
THE
DT2814
PANEL
A
VOLTMETER
OF
220H
TO
TO
. • . • . . . . •
SCHEME
TO
. • . .
SOME
THE
THE
DATA
DT70-1-20
. . . .
DT2814
3-5
4-5 4-5
4-7
5-2 5-4 S-6
6-2
v
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Page 7
TABLES
3-1 3-2 3-3 3-4
4-1 4-2
5-1 5-2
5-3 6-1
6-2
SELECTION
BASE
FREQUENCIES
SELECTION
DT2814
P1
PIN
J1
PIN
OF
THE
INPUT
OF
OF
THE
INTERRUPT
JUMPER
SUMMARY
ASSIGNMENTS ASSIGNMENTS
RANGE
THE
ON-BOARD
. . . . . . .
CLOCK
REQUEST
LEVEL
. .
. . . . . . . . . .
. .
...••.
4-2,
. . . . . . . . . . . .
DT2814 REGISTERS . • . . . . . . . .
SOFTWARE
A/D
CHANNEL
DATA DATA
SELECTED
CODING CODING
CLOCK
FREQUENCIES
SELECTION . . . . . . . .
VALUES VALUES
FOR
UNIPOLAR
FOR
BIPOLAR INPUTS . .
INPUTS . .
. . •
3-6 3-6
.
3-7 3-7
4-3 4-4
5-1 5-2 5-3
6-3 6-3
vi
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Page 8
PREFACE
This Translation board. sections
manual
The
in
is
DT2814 folowing the
manual.
written
analog
list
CHAPTER 1 - INTRODUCTION Provides
indicates
CHAPTER Gives
specifications used
with
CHAPTER Gives
how
to
CHAPTER DT2814 acquisition single-ended
an
overview
related
2 -
SPECIFICATIONS
the
complete
for
it.
3 - UNPACKING
instructions
configure
4 -
Describes
with
the
accessories.
connection
accessories.
electrical
the
AND
on
how
it
for
the
host
for
the
to
digital
provides
on
the
DT2814
DT2814
board
CONFIGURATION
to
unpack
a
specific
interconnections
computer
Provides
scheme.
users
summeries
board
and
and
the
user
mechanical
accessories
board
application.
system a
diagram
of
Data
converter
of
all
and
and
the
of
and
of
data
the
CHAPTER
5 - ARCHITECTURE
Discusses architecture
registers, initializatiion
provides
CHAPTER
6 - CALIBRATION
Describes unipolar
CHAPTER
7 -
Provides
the
and
functions
a
programming
the
calibration
or
bipolar
EXAMPLE
two
example
main
and
input
PROGRAMS
programs.
AND
elements operation. of
the
A/D
conversion
sequence.
of
ranges.
vii
OPERATION
of
Describes
register
the
DT28~4
the
bits,
processes,
board
DT2814
the
the
and
in
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Page 9
APPENDIX A -
BOARD
ASSEMBLY
DIAGRAM
Gives
the
board
assembly
diagram
of
the
DT2814.
viii
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Page 10
CHAPTER
1
INTRODUCTION
1.1 The
analog
OVERVIEW
Data
Translation
to complete, for
laboratory
applications. The
DT2814 the It
IBM
acquires
converts
processed conversion
converter conversions
programmable conversion
The
DT2814 It
can
ranges
coding and
be
of
is
offset
Interrupts
completion level
is
jumper-selectable.
digital
IBM
PC
plugs
PC/XT/AT
analog
them
by
into
the
is
accomplished
capable
per
frequencies
triggers.
provides
configured
+/-SV,
straight
binary
to
the
of
an
DT2814 converter
compatible
research
into
a
single
computer
signals
a
host
of
up
to
second).
16
single-ended for
0
to
+5V,
binary
for
processor
A/D
conversion.
is
a
low
board data and
acquisition industrial
I/0
or
compatible
from
digital
code
microcomputer.
by a 12-bit
25kHz
An
can
throughput on-board
be
unipolar
and
for
unipolar
bipolar
can
be
cost,
which
expansion user
inputs
which
used
input or
bipolar
+/-2.5V.
input
input
generated
The
half-size
offers
system
control
slot
backplane.
and
can
The
A/D
monolithic
(25,000 clock to
with
issue
channels.
input
Output
ranges
ranges.
at
the
interrupt
a
of
be
The
DT2814
the
1.2
A
panels
IBM
PC
ACCESSORIES
wide
range
can
acquisition
~ompatible
follows:
DT701-20
This
is
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operates
bus.
of
signal
be
accessories.
accessories
a
universal
from
used
the
+5V,
+12V,
conditioning/screw
with
A
screw
from
the
brief
Data
terminal
DT2814
description
1-1
and
-12V
terminal as
Translation
panel
on
data
of
which
Page 11
INTRODUCTION
ACCESSORIES
provides input for components.
DT709-S
This terminal protection.
DT709-Y
This
differential
input differential mode +12V the
DT709-M
This
It 250
DT756-Y
This bridge, differential outputs, analog common mode obtains connector
convenient
channels.
user-supplied
is
a
signal channels
rejection
and
DT2814
is
a
current
converts
ohm
current
board
and
inputs
the
of
16-channel
panel.
conditioning interface
of
amplifier
of
-12V board.
0
to
shunt
is
low
inputs
and
effectively differential. rejection
+12V
the
connection
It
also passive
It
the
DT2814.
+/-20V.
power
input
20mA
inputs
resistor.
designed
level
and
-12V
DT2814
provides
single-ended
provides
to
at
each
The
from
version
inputs.
and
of
power
board.
signal
panel the
16 It
input
DT709-Y
the
J1
of
to
0
for
16 makes The
+/-SV.
points
to
blank
conditioning
+/-20V
provides single-ended
contains
for
common
obtains
connector
the
DT709-Y.
to
SV
using
thermocouple,
It
provides
single-ended
the
board
The
from
DT2814
provides
DT756-Y the
the
pads
screw input
a a
of
a
16
J1
DT750
Backplane/DT6700 The accommodates signal
required
provides
input
current
input;
The
20-conductor connect conditioning
DT750
conditioning
for
isolation types: loop
tachometer
the
screw
accessories
signal
up
each
input;
EP047
Series
Modules
conditioning
to
16
DT6700
modules.
input
and
one
differential
RTD
input; cable
or or
assembly
terminal
to
the
1-2
series One
channel.
of
the
voltage
bridge
thermocouple
panels
DT2814
backplane
module
Each
following
completion
is
and
board.
isolated
module
input; input.
used
signal
is
to
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Page 12
CHAPTER
2
SPECIFICATIONS
2.1 This
board. are
2.2 Number Input
INTRODUCTION
chapter
Unless
typical
ANALOG
of
Analog
Ranges
(Jumper-selectable)
Output
Data
Gain
Input
Impedance
Off On
Channel
Channel
lists
at
+25
INPUTS
Codes
the
noted
degrees
Inputs
specifications
otherwise,
C
and
16 0
+/-S.OOV,
straight binary 1
>10 10pF >10
of
the
specifications
rated
single-ended
to
+5.00V
(unipolar) (bipolar)
(unipolar)
(fixed)
megohms,
in
megohms,
100pF
the
voltage.
+/-2.5V,
binary
or
(bipolar)
parallel;
in
parallel
DT2814
offset
2-1
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Page 13
SPECIFICATIONS ANALOG
INPUTS
Bias Maximum
Maximum
ACCURACY Resolution Nonlinearity Differential Inherent System Channel Gain Zero
Current
Input
Damage,
Input
Damage,
Accuracy
Crosstalk
Error
Error
Voltage
Power
Voltage
Power
Nonlinearity
Quantizing
On
Off
Without
Without
Error
+/-lOOnA
+/-30V
+/-20V
12
bits
Less
Less +/-1/2 Within
-80dB Adjustable Adjustable
than than
LSB +/-.03%
at
+/-1/2 +/-1/2
1kHz
to to
LSB LSB
FSR
0 0
DYNAMIC
Channel A/D A/D
Dynamic
THERMAL A/D
Unipolar
Bipolar Gain Differential
PERFORMANCE
Acquisition Conversion Converter
Error
CHARACTERISTICS
Zero
Drift
c
Monotonicity
Drift
Time
Throughput
Linearity
Time
Drift
8
microseconds
30
microseconds 25kHz +/-.75
lOV
20 17ppm
30ppm +/-3ppm
0
to
LSB
change
microvolts;deg.
of of
+50
for (max)
FSR/deg. FSR/deg.
of
FSR/deg.
deg.
a
C
C C
c
2-2
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Page 14
SPECIFICATIONS ON-BOARD
CLOCK
2.3
Base
ON-BOARD
Frequencies Selectable Divisor
usable
CLOCK
Clock
Frequencies
Frequencies
SO
to O.OOSHz 1
to
10,000,000
decade
O.OOSHz
600kHz
to
600kHz
increments
to
20kHz
in
2-3
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Page 15
SPECIFICATIONS
INTERFACE CHARACTERISTICS
2.4
Compatible
Interface Bus Number
INTERFACE CHARACTERISTICS
Bus
Type
Loading
of
Locations Factory-Assigned Interrupt
Interrupt
Analog
Data
Path
Options
Source
Data
Format
Occupied
Base
Address
IBM
PC/XT/AT
I/O
mapped
Presents
2
bytes
address
1
busload
220H Jumper-selectable
level or
Finish conversion
12-bit left
8
7
bits
3,
bit
A/D
hand
4,
5,
(A/D
done) data
justified
to
6,
2-4
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Page 16
SPECIFICATIONS
POWER
REQUIREMENTS
2.5
Power +5V +12V
-12V
2.6
Dimensions
Weight
Maximum Operating
POWER
Requirements
PHYSICAL/ENVIRONMENTAL
REQUIREMENTS
Altitude
Temperature
Range
+/-10% +/-10% +/-10%
4.23"
10.75
3.5
ounces 7,500 0
to
@138mA @22mA @29mA
X
4.23"
X
1075cm
feet
+50
(98g) (2286m)
deg.
...
C Storage Humidity
2.7
20-pin
Cable
CONNECTORS
Assembly
Temperature
J1
Connector
AND
Range
CABLES
-25
to
+70
To 95%, non-condensing
3M
No.
3493-2003 compatible connector:
EP047: flat EP047-1:
20-conductor,
ribbon,
18"
deg.
3M-3421
C
8ft. version
2-5
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Page 17
SPECIFICATIONS COMPATIBLE
SCREW
TERMINAL
PANELS
2.8
Screw
COMPATIBLE
Terminal
SCREW
Panels
TERMINAL
PANELS
DT701-20,DT709-S, DT709-M,
DT756-Y,
DT750/6700
2-6
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Page 18
CHAPTER
3
3.1 This
INTRODUCTION
chapter
explains
second
part user-selectable prior
3.2 Inspect
for
to
installing
UNPACKING
the
evidence Depending proceed
3.2.1 If
no
as
NO
visible
1.
APPARENT
Place cut
UNPACKING
consists
how
to
discusses
shipping
on
the
outlined
damage
the
the
AND
of
unpack
parameters
the
board.
carton
of
mishandling
condition
in
the
DAMAGE
is
found,
container
shipping
CONFIGURATION
two
parts.
the
the
which
shipped
configuration
should
immediately
during
of
the
next
two
shipping
sections.
proceed
on
a
stable
tape.
The
as
first board.
upon
follows:
surface
part
done
be
receipt
transit.
carton,
The
of
and
2 .
3.
Grasp underneath
the
top.
While
placing
portion
item
from
prevent
from
possible
during
the
of
the
any
transit.
front and
one
the
styrofoam
damage
static
of
lift
hand
system
the
forward
firmly
chassis, chips.
to
the
electricity
flat
and
board
up
to
on
a
remove This components
build-up
carton
open
metal
the
will
3-1
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Page 19
UNPACKING UNPACKING
4.
5.
AND
After
of
CONFIGURATION
allowing
any
static microcomputer board
or
bag. Examine
the damage. encountered, next
section.
a
moment electricity
chassis,
component
item
If
again
any
proceed
for
carefully
from
for sign as
detailed
the
into
the
any
of
discharge
the
unwrap
anti-static
possible
damage
in
host
the
is
the
3.2.2 If
the
it
in
agent.
container
Then:
1.
2.
3.
VISIBLE
item
container the Then
as
Examine damage
repair If
present
insurance
Have and
replace
If
the
write:
Customer
DAMAGE
presence proceed
detailed
the is
or
the
delivery during
the
insurance
arrive
the
item
Data
100
Marlboro,
Tel:
shows
of
to
unpack
in
item
for
detected,
installation
unpacking,
claim
inspection.
at
an
damaged
is
to
Service
Translation,
Locke
MA
(617)
Telex:
951-646
any
visible
the
delivering
it
the
from
previous
shipping
do of
carrier's
agent
inspect
agreement
item.
be
repaired,
Department
Inc.
Drive 01752-1192 481-3700
NOT
the
damage,
the
damage.
perform damaged agent
call
the
to
open
carrier's
shipping section.
item.
was
for
damage
repair
call
If
any not
an
or
or
4.
5.
Request
(RMA)
any
item
Repackage anti-static original container
a
number.
will
shipping for
Return
This
be
accepted
the
wrapp1ng
shipment
Material must
?amaged
and
material
back
be
for
Authorization
obtained
return.
item
place
or
to
the
in
it
a
factory.
before
the
in
its
secure
3-2
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Page 20
----
----------~------
----~----------------
--~--~-
6.
Ensure anti-static conductive)
is Static damaging on
Return number,
that
handled
electricity
Data
the to
the
UNPACKING
NOTE
the
item
packaging,
with
to
electrical
Translation
damaged
address
AND
is
ground
is
products.
item,
above.
CONFIGURATION
UNPACKING
wrapped
(electrically
and
that protection. potentially
components
with
the
in it
RMA
3-3
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Page 21
UNPACKING
AND
CONFIGURATION
CONFIGURATION
3.3 Four
by
range,
CONFIGURATION operating
the
clock
level.
jumpering
Jumpers number posts
are
(as
are
installed,
Jumper
configuration installing on
the
pair are board
indicated
and
Appendix
3.3.1
The
BASE
DT2814
address
through select to
define
3FEH.
the
selected board
to Register, set.
The configuration default
installed
bit
it
represents.
user: The
selection
the
board.
designated
W19)
connected
or or
of
on
the
A.
ADDRESS
occupies
space.
base
the
lower
for
select
or
figure
base
jumper
parameters
base
base
frequency,
represents
together
disconnected
removing jumper
on
the
board
SELECTION two
The
Figure
3-1
address.
end
the the
the
board.
Control Data also
for
the
address
selects
on
the
address is
performed
by
"W"
two
is a
performed
wire-wrap
posts.
component assembly
locations
base
address
shows
Address
of
the
Bit
Register illustrates
selection
of
220H. the
DT2814
of
and
by
numbers.
jumper
when
when
or
Jumper
side drawing
in
the
bit
I/0
AO
is
Register,
and
value
are
the
board,
the
appropriately
A
single
posts.
the
it
jumper
is
by
a
jumper
designations
of
the
the
IBM
ranges
jumpers
A9
is
address
decoded
the
is
not
the
of
the
Note
of
"0"
selected
input
interrupt
These
removed.
simply
plug
DT2814
found
PC
from
200H
which
always
segment
on Status
jumper jumper
factory
that
for
"W"
is
in
I/0
1
the
an
the
3-4
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Page 22
UNPACKING
AND
CONFIGURATION CONFIGURATION
I 2 2 o I
1=========1===================1===================1 I+A9 I+A8 I+A7 I+A6 I+AS I+A4 I+A3 I+A2 I+A1
I+AO
l----l----1----l----l----l----l----l----1----l----l
11101010111010101010
l---------1-------------------l-------------------l
I o o o o o o o o I
I I I I I I I I I
I o o o o o o o o I
1 wa
I
Always
NOTES:
1.
2.
w7
1
The
first
factory
row
indicates address. value indicates a
value
removed.
AO
is board. the
Control the clear
Status
of
not
(0),
w6
selected
each
of
When
ws
row
from
the
The
that
"1"
configured.
it
third
address
the indicates
set
Register
Register
selects
w4 w3
the
top base bit
address.
numbers
row
bit.
jumper
It
(1),
(write (read
the
w2
represents
shows
A
is
installed,
that
is
decoded
it
selects command).
Data
w1
Decoded on
The
of
the
the
value
the
command)
Register.
of
jumper
between
1
board
the
second
base
binary
"0" and
on
the and
When
I
I
is
FIGURE
3.3.2 The
DT2814 ranges: (+/-2.5V
unipolar only. the voltages. selection 3-1.
board
INPUT
permits
one
and
input
If
the
of
3-1:
RANGES
unipolar
+/-SV).
input accepts The
the
BASE
selection
range,
range
both
jumper
input
ADDRESS
(0
If
the
it
accepts
selected
positive
configurations
ranges
SELECTION
of
three
to
+SV)
board
is positive is
and are
OF
220H
voltage
and
two
configured bipolar,
negative given
input
bipolar
voltages
input
for
in
Table
for
then
the
3-5
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Page 23
UNPACKING
AND
CONFIGURATION
CONFIGURATION
TABLE
3-1:
SELECTION
OF
THE
INPUT
RANGE
I I JUMPERS I
I INPUT
RANGE
I
W17
I
W18
I
W19
I
1---------------------------------------------l
I 0
to
I
+/-2.5V
I
+/-5V
NOTE:
1.
3.3.3
The
on-board trigger Eight be
derived
jumpers
divisors
particular the
base selection 3-2.
+5V I
(FC)
FC
is
CLOCK
A/D
different
W9, W10,
further
application.
frequency
of
factory
BASE programmable
conversions
from
the
In
I
Out
I
Out
configuration.
FREQUENCY
base
frequencies--50
the
oscillator
and
W11.
divide
is
base
frequency
I
Out
I
In
I
In
SELECTION
pulse
at
Program each The
base software
discussed
I
Out
I
Out
I
In
generator selected
to
by
configuration selected
frequency
in
Chapter
is
shown
I
I
I
is intervals.
600kHz--can
division
W20
In In
Out
in
used
decade
for
5. Table
I
I
I
I
to
of
the
of
The
I
BASE
I (
TABLE
FREQUENCY
KHZ
3-2:
OF
THE
ON-BOARD
) I
BASE
I
W9
FREQUENCIES
CLOCK
JUMPERS
I
W1
0 I
W11
1-------------------------------------1
I
I
I I I I I
I
NOTE:
1.
50
100 12 15
(FC)
0 I
0 I
2 0 0 I
300 6 0 I
600
FC
is
factory
I
In
I
In In In
Out
I
Out Out
I
Out
I
I
I I I I I I
configuration.
In
In Out Out
In
In Out Out
I
In
I
Out
I I n I I
Out
I
In
I
Out
I
In
I
Out
I
I
I
I
I I I I I
3-6
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Page 24
UNPACKING
AND
CONFIGURATION CONFIGURATION
3.3.4 The
DT2814
request levels--3 bit The given not
7
selection select
I INTERRUPT I I
1-----------------------------------------1
I +IRQ 3 I I I I I
NOTES:
1.
INTERRUPT
can
be
to
the
processor
(highest),
of
the
Status
of
in
Table
any
TABLE
REQ. LEVELl
+IRQ 4 I +IRQS I +IRQ6 I +IRQ 7 I
All
3-3.
interrupt
3-3:
jumpers
LEVEL
jumpered
4,
Register
the
SELECTION
REQUEST
W12 I W13 I W14 I W15 I W16
In Out Out Out Out
interrupt
The
I I I I I
out
at
5,
factory
level.
Out
In Out Out Out
in
to any
6,
or sets
OF
THE
LEVEL
JUMPERS
I
Out
I
Out
I
In
I
Out
I
Out
factory
issue
one
request
configuration
an
of
five
7
(lowest)--when
(see
INTERRUPT
I
Out I Out
I
Out I Out
I
Out I Out
I
In
I
Out
configuration.
Chapter
I I
interrupt
possible
level
does
I I
I I I
Out
In
I I
5). is
3.4 Table
jumpers user-configurable parameters. each
JUMPER
3-4
jumper
I
JUMPER
SUMMARY
gives
on
the
is
TABLE
a
The
noted
3-4:
I
summary
DT2814
for factory
in
DT2814
JUMPER
of
the
board.
the
parentheses.
I
selection
default
JUMPER JUMPER
configurations
All
the
of
configuration
SUMMARY
I
JUMPER
1--------------------------------------------
l
Wl
(In)
I I I I I
W5
(Out)
I I I I
W9
I
(In)
I I I I
I
W13
(Out) I W14
I , I I I I
W17
(Out) I W18
I I I
W2 W6 WlO
(In) (In)
(In) (Out) (In)
I
W3
I
W7
I
Wll
I Wl5
I Wl9
(In) (In)
(Out)! (Out) I W16 (In)
I I
I
W4
wa
W12
W20
jumpers
various
(In) (In)
(Out) (Out) (Out)
of
are
of
3-7
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Page 25
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Page 26
CHAPTER
4
INTERCONNECTIONS
4.1
The
slot
connects
This
INTRODUCTION
DT2814
or
to
chapter illustrates screw
terminal
discussion
4.2 The
CONNECTION
DT2814 backplane communication DT2814
is
assignments
plugs
into
compatible
the
user
details
the
connection
panels
and
a
diagram
TO
plugs
via
its
between
carried
of
the
backplane
these
IBM
into
62-pin
the
through
P1
connector
the
IBM
interface
two of
to
the
of
single-ended
PC
BACKPLANE the
host
this
PC/XT/AT
on
connector
on
connections.
some
Data
DT2814
IBM
P1
edge
processor connector.
are
connector
Translation
and
provides
inputs.
PC
compatible
connector.
given
Table
expansion
Pl,
and J1.
It
also
All
and
The
the pin
4-1.
a
4-1
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Page 27
INTERCONNECTIONS
CONNECTION
TO
IBM
PC
BACKPLANE
I
PIN
TABLE
I
4-1:
MNEMONIC
Pl
PIN
ASSIGNMENTS
I SIGNAL DESCRIPTION
1-----------------------------------------
1
Al
I
A2
I
A3
I
A4
I
AS
I
A6
I
A7
I
AS
I
A9
I AlO
I
All
I
Al2 A13 A14 AlS Al6 Al7 AlB Al9 A20 A21 +AlO A22 A23 A24 A25 A26 A27 A28 A29 A30 A31
-I/0 +D7 +D6 +DS +D4 +D3 +D2 +Dl +DO +I/0 +AEN +Al9 +Al8 +Al7 +Al6 +AlS +Al4 +Al3 +Al2 +All
+A9 +A8 +A7 +A6 +AS +A4 +A3 +A2 +Al +AO
CH CK
CH
ROY
I/0
Channel
Data
Data Data
Data
Data Data Data Data I/0
Address
Address
Address
Address Address Address
Address
Address Address
Address
Address Address Address
Address
Address Address Address
Address
Address Address Address
Bit Bit Bit Bit Bit Bit Bit Bit
Channel
Check 7 (MSB) 6 S 4
3 2 1 0 (LSB)
Ready
Enable
Bit
19
Bit
18
Bit
17
Bit
16
Bit
lS
Bit
14
Bit
13
Bit
12
Bit
11
Bit
10
Bit
9
Bit
8
Bit
7
Bit
6
Bit
Bit Bit Bit Bit Bit
S 4
3 2 1
0 (LSB)
(MSB)
Continued
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on
4-2
next
page
Page 28
CONNECTION
INTERCONNECTIONS
TO
IBM
PC
BACKPLANE
TABLE
I
PIN
4-1:
I
MNEMONIC
P1
PIN
ASSIGNMENTS(CONT'D)
I SIGNAL DESCRIPTION I
1-----------------------------------------1
Bl B2 B3 B4
BS
B6 B7 B8 B9 B10 B11 B12 B13 B14 B15 B16 B17 B18 B19 B20 B21 B22 B23 B24 B25 B26 B27 B28 B29 B30 B31
GND +RESET +5V +IRQ2
-5VDC +DRQ2
-12V RESERVED +12V GND
-MEMW
-MEMR
DRV
-row
-IOR
-DACK3 +DRQ3
-DACK1 +DRQ1
-DACKO CLOCK +IRQ7 +IRQ6 +IRQ5 +IRQ4 +IRQ3
-DACK2 +T/C +ALE +5V +OSC +GND
GROUND RESET DRIVER
VOLT
+5
INTERRUPT
-5
VOLT
DMA
-12
VOLT RESERVED +12
VOLTS GROUND MEMORY MEMORY
I/0
WRITE I/0 DMA
ACKNOWLEDGE DMA DMA
ACKNOWLEDGE DMA DMA
ACKNOWLEDGE CLOCK
INTERRUPT INTERRUPT INTERRUPT INTERRUPT INTERRUPT
DMA
ACKNOWLEDGE TERMINAL
ADDRESS
+5
VOLT OSCILLATOR GROUND
POWER
REQUST
POWER
REQUEST
POWER
~OWER
WRITE READ
COMMAND
READ REQUEST REQUEST
COMMAND
REQUEST REQUEST REQUEST REQUEST REQUEST
COUNT LATCH POWER
2
2
COMMAND
COMMAND
3
3
1
1
0
7 6 5 4 3
2
ENABLE
4.3 The
the 4-2
USER
DT2814
20-pin,
gives
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CONNECTION
is
connected
3M
type
the
pin
assignments
J1
connector
to
4-3
the
of
user
(P/N
the
interface
3493)
J1
connector.
.
via
Table
Page 29
INTERCONNECTIONS
USER
CONNECTION
TABLE
I
PIN
4-2:
NO.
J1
PIN
ASSIGNMENTS
I SIGNAL
NAME
1-----------------------------
NOTE:
1.
The
20 power Data
terminal
little available The used user-supplied
1
2
3
4
5
6
7
8
9
10
11
12 13 14 15 16 17 18 19 20
+/­is
active
Translation
+/-12V
to
Channel Channel Channel Channel Channel Channel Channel Channel Channel Channel Channel Channel Channel Channel Channel Channel Power
Analog
+12V
-12V
12V
on
intended
circuitry
panels.
current
on
should
power
Ground
Ground out out
pins
only
those
external,
circuits.
0 8 1 9 2 10 3 11
4 12 5 13
6
14 7 15
19
screw
Very
pins.
NOT
and
to on
is be
...
4.4 rhis
)Card
ivailable :igure
;crew )T709-S, ;onditioning
CONNECTIONS section
to
4-1
terminal
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illustrates
some
from
DT709-M,
Data
shows
modules
TO
SCREW
compatible
Translation.
the
connection panel/signal and
DT756-Y,
of
the
4-4
TERMINAL
connections
screw
of
conditioning
and
DT750/DT6700
PANELS
of
terminal
the
isolated
the
DT2814
series.
DT2814 panels
to
panels
signal
Page 30
DT701-20
DT709-S
CONNECTIONS
TO
SCREW
INTERCONNECTIONS
TERMINAL
PANELS
Figure DT701-20
DT709-M
'1
...J
DT756-Y
DT750/DT6700
SERIES
FIGURE
TERMINAL/SIGNAL CONDITIONING
4-2
screw
4-1:
TO
SOME
illustrates
terminal
CONNECTION
DATA
TRANSLATION
the
panel
EP047
OF
THE
connection
to
two
DT2814
r
DT2814
L
DT2814
SCREW
PANELS
DT2814
TP0007P
of boards.
the
DT?Ol-20
EP047
DT2814
FIGURE TO
THE
4-2:
CONNECTION
DT701-20
SCREW
OF
THE
TERMINAL
DT2814
PANEL
4-5
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Page 31
INTERCONNECTIONS
SINGLE-ENDED
CONNECTION
SCHEME
4.5 The
SINGLE-ENDED
DT2814 inputs signals to
the
of
this channel user from should than
gives
a
be
15
connection
v
0
A/D
only.
share
a common
Analog
scheme
density.
up
common mode
differential
restricted
feet).
scheme
CONNECTION
board
In
single-ended
Ground
is
that The
A
is
is
designed
low
(AGND,
the
major
input.
to
short
diagram
given
SCHEME
for
connections,
side
pin
user
which
18). gets
disadvantage
rejection
Single-ended lead
of
the
in
Figure
I
I
I
I I
I
I
I
I
I
I I
I
I
I
I
I
single-ended
is
The
the
is
he
could
lengths
single-ended
4-3.
input
connected
advantage
maximum
that
the get
inputs
(less
\TOTES:
FIGURE
1.
All Analog
2 •
All
connected so on floating
4-3:
signal
unused
can all
SINGLE-ENDED
inputs
Ground.
analog
to
Analog
result
other
in
channels,
channel(s)
4-6
CONNECTION
must
input
Ground.
inaccurate
those
being
be
referenced
channels
A/D
closest
affected
SCHEME
should
Failure
conversions
most.
to
to
TPOOlOP
to
be do
the
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Page 32
I'
l
5.1 This
operation
5.2 rhe
:onsists status
Jperations cegisters. lccessibility
INTRODUCTION
chapter
ARCHITECTURE
DT2814
REGISTER
ARCHITECTURE
of
the
features
of
Register,
on
Table
TABLE
describes
DT2814
three the
of
each
NAME
CHAPTER
a
registers:
and DT2814 5-1
shows
register.
5-1:
DT2814
A/D
A/D
I
5
AND
OPERATION
the converter
simple
Data
are
carried
the
REGISTERS
ADDRESS
architecture
board.
architecture
Control
Register.
out
relative
Register,
using address
and
which
All
these
and
I ACCESS I
--------------------------------------------------1
Control Status Data
Register
Register
Register
I
Base
I
Base
I
Base+
11
I
Write:
I
Read: Read:
byte
byte
2
bytes
I I I
5-1
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Page 33
ARCHITECTURE ARCHITECTURE
AND
OPERATION
5.2.1
The contains conversion.
5-l
of
BIT
BITS
CONTROL
Control
followed
each
I 7 I 6 I 5 I 4 I 3 I 2 I 1 I o I
1-------------------------------1
I
\---------/
F21
bit
Fll
I
Decade
Select
FUNCTIONS
7-5
-
Decade These on-board obtained are
configurations frequency
REGISTER
Register
the
The
by
in
the
FOIENBI
Divisor
Bits
FIGURE
bits
given
select
clock
by
are
(BASE
is
a
write
parameters
register
the
description
register.
C31
is
C21
\--------------/
Channel
5-l:
Divisor
base
the
various
in
for
given
the
I
Bits
CONTROL
Select
decade
frequency.
Table the
selection
in
Chapter
+
0,
WRITE
only
for
illustrated
Cll
Select
settings
the
of
COl
REGISTER
(F2,
divisor
5-2.
ONLY)
register
current
in
of
the
Bit
No.
Designation
Fl,
FO)
The
frequencies
of
these
The
of
the
3.
which
A/D
Figure
function
for
the
bits
jumper
base
TABLE
3IT 4 -
This this
on-board user.
triggers
5-2:
I
F2
SOFTWARE
Fl
FO
I
SELECTED SELECTED
CLOCK
tREQUENCY
FREQUENCIES
1-------------------------------------1
I 0 0 0 I I 0 0 I 0 I 0
1 0 0 I
I
I 1 0 1 I I
1 1 0 I
I
1 1 1 I
Enable
is
bit
1 I
1 0 I 1 1 I
(ENB)
the
during
clock
Each
another
clock
at
clock
Base Base Base Base Base Base Base Base
enable
a
the
A/D
Frequency Frequency/10 Frequency/100 Frequency/lk Frequency/lOk Frequency/lOOk Frequency/1M Frequency/10M
bit.
write
rate
tick
conversion.
5-2
command
specified
after
A
the
"1"
write A
I I
written
enables
"0"
I I
I I
I I I
the
by
the
command
issued
to
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Page 34
ARCHITECTURE
AND
OPERATION
ARCHITECTURE
BITS
during causes
3-0 These available conversion. configurations
------------------------~----------
I I
a
a
single
-
Channel
four
TABLE
CHANNEL
C3
C2
write
Select
bits
channels
Table
for
5-3:
SELECT
C1
command
step
triggering. Bits
select
channel
A/D
CHANNEL
BITS
co
disables
one
for 5-3
(C3,
of
the shows
the
C2,
sixteen
selection.
SELECTION
I SELECTED I
I
CHANNEL
NO.
clock
C1,
CO)
(0
current
the
I
to
and
15)
A/D
bit
1-----------------------------------1
I o o o o I o I
I o o o 1 I 1 I
I o o 1 o I 2 I
I o o 1 1 I 3 I
I o 1 o o I 4 I
I
o 1 o 1 I 5 I
I o 1 1 o I 6 I
I o 1 1 1 I 7 I
I 1 o o o I a I
I 1 o o 1 I 9 I
I 1 o 1 o I
I 1 o 1 1 I
1 1 1 o o I
I 1 1 o 1 I
1 1 1 o I
I
1 1 1 1 1 I
10 11 12 13
14
15
I
I
I
I I
I
5-3
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Page 35
ARCHITECTURE ARCHITECTURE
·AND
OPERATION
5.2.2
The
provides conversions. 5-2 function
I 7 I 6 I 5 I 4 I 3 I 2 I 1 I o I
1-----------------------------------1
IFINISHIERRIBUSYIENBI
STATUS
Status
which
REGISTER
Register
information
The
is
followed
of
each
is
register
bit
in
(BASE
a
read
about
the
C31
+
the
is
by
register.
C21
0;
READ
only
condition
illustrated
the
description
Cll
\--------------1
I
Select
REGISTER
status
A
"1"
complete
is
in
process
is
and
converted
will
indicates in
that
not
for of allow
BIT
FUNCTIONS
BIT 7 -
This conversion
current valid Register. conversion data interrupt Chapter interrupt
routine the bit.
FIGURE
Finish
bit
in
A/D
5-2:
reports
cycle. conversion converted
A
"0"
is the
Data
level
3),
to
the
read
Data
the processor
Channel
STATUS
the
is data
indicates
still
Register is
selected
setting
the Register
ONLY)
register
Bit
COl
Designation
Bits
of
and the
valid. the
this
the
data.
clear
of
in
No.
the
that
A/D the and
board
bit
interrupt
the
which
the
A/D Figure of
current
that
Data
current
that
If
(see
will
Reading
Finish
the
the the
the
an
BIT 6 -
Error
A
"1"
occurred
results triggered
b)
A
conversion from The
error
Data
Register.
(ERR)
indicates
on
when:
before
the
previous
flag
the
is
that a) is
an
board.
A new A/D
the
current
triggered
conversion
cleared
error
An
by
a
condition
error
conversion
one
has
before
has
read
condition
finished; the
been
of
the
read.
5-4
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has
is
data
A/D
Page 36
ARCHITECTURE
AND
OPERATION
ARCHITECTURE
BIT
BIT
BITS
5 -
Busy
This
in
progress.
4 -
Enable
This
the
on-board
indicates to
the
3-0 CO) These
for bits
flag
bit
Control
Control
-
Channel four
the
current
in
the
sets
(ENB)
is
a
readback
Register.
clock
conversions
Address
bits
Control
to
"1"
is
enabled
Register.
read
back
conversion
Register.
when
of
A
"1"
are
Select
an
A/D
the
clock
indicates
for
triggers.
triggered
Bits
the
channel
by
the
conversion
enable
that
A
by a write
(C3,
C2,
selected
corresponding
is
on
the
"0"
C1,
5-5
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Page 37
A~CHITECTURE
AND
ARCHITECTURE
OPERATION
5.2.3
The which conversion
the
A/D
read justified
significant
the is
The
read the Register
A/D
DATA
A/D
Data
holds
operation.
Status
Register)
conversion,
from
such
least
read
first
significant from
read
accesses
low
byte
format
A)
REGISTER (BASE +
Register
the
digital
is
When
sets,
the
12-bit
the
A/D
Data
that
eight
the
bits,
four
the
A/D
accesses
the
low
byte. always is
given
First
data
an data
indicating
Register.
high
while
bits.
Data
the
read
in
read
8-bit
the converted
high
Figure
-
I 7 I 6 I 5 I 4 I 3 I 2 I 1 I o I
1-------------------------------1 ID111D10ID9
B)
IDS
Second
ID7 ID6
data
read
IDS
1;
resulting
Finish
byte
the Register The
zero.
high
ID4
-
low
READ
read
only bit
the
data
The
contains
low
byte
The
converted
in byte, lower
The
5-3.
byte
Bit
I
Designation
byte
ONLY)
from
end
data
the
two
the
four
A/D
No.
register
the
(bit
of
can
is
contains
steps. second
bits
A/D
7
of
the
be left most
data
of
Data
I 7 I 6 I 5 I 4 I 3 I 2 I 1 I 0 I
1-------------------------------1
ID3 ID2 ID1
FIGURE
In
order
overwriting
the
user
to
the
frequency.
IDO
5-3:
to
avoid
valid
maintain
trigger
I 0 I 0 I 0 I 0 I
A/D
DATA
REGISTER
NOTE
A/D data, a
rate
trigger it
read
specified
is
rate
important
at
Bit
No.
Designation
errors least
by
the
and
that equal clock
5-6
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Page 38
ARCHITECTURE
AND
OPERATION OPERATION
5.3
This DT2814
OPERATION
section
board,
programming
5.3.1 Three
INITIALIZATION
steps
DT2814:
1.
2.
3.
These
operations
DT2814.
5.3.2
An
A/D two by the made Control
A/D CONVERSION
conversion
trigger
loading
on-board by
the
Register.
sequence.
must
Write Wait Read
A/D
the
state
discusses
the
be
0
to
the
for
at
the
high
Data
Register.
will
starts
sources
Control programmable
of
the
A/D
conversion
performed
Control
least
byte
clear
with
on
the
Register,
the
Enable
initialization
to
Register.
100
microseconds.
and
the
all
the
a
trigger.
DT2814
and
clock.
bit
process,
initialize
low
registers
board:
hardware,
The
(bit
of and
byte
of
There
software,
selection
4)
in
on
using
the the
the
the
the
are
is
the
Single
operations software Register
with
acquired
(bit
must
4)
of
be
completed
Register,
to
initiate conversions Control
Clock
Register.
triggers conversions the
Control
byte
(1).
loaded
Conversion programmable repetitive new
(disable
byte
clock
method.
the
starts
the
byte
clear. and the
data
Control
another
occur
are
are
Register.
into
triggers
clock conversions to
the
triggers).
are
Simply
address
an
A/D
loaded
After
is
conversion.
on
typically
desired
the
at
Control
always
of
conversion.
into
the
read
Register
successive
on
The
Enable
Control
are the
can
be Register
5-7
loading
the
the
A/D from must
used
the
Register
then selected
stopped
triggered
~hannel
The
Control
conversion
the
be
Thus
writes
when
channel
bit
(bit
issued
by
with
by
the
Control
Enable
Register
A/D
loaded
successive
to
repetitive
loaded
4)
must
by
rate.
writing
bit
4
to
Data
again
into of be
clear
the
be
bit
is
the
the set the
The
a
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Page 39
ARCHITECTURE OPERATION
It
is
important specified conditions.
may
vary
frequency
Also,
to
processing
IBM
system
conversion
AND
OPERATION
for
Even
from
above
eliminate
time,
clock
cycles.
NOTE
that the
a clock
though O.OOSHz 20kHz
contention
it
is
be
disabled
usable
the
to
is
frequency
to
avoid
clock 600kHz, not
recommended.
recommended
during
error frequency an
output
for
system
that
clocked
be
the
5.3.3
The
PROGRAMING
following
programming
1.
2.
3.
SEQUENCE
sequence
the
DT2814.
Power
up
the
warm-up.
Initialize in
this
Write This acquired
If the
board
bit
section.
a
byte
byte
and
4
initiate channel bits
specified
(bits Conversions selected W9, WlO, to
5
of
and
the clear, automatically channel.
requires
Register.
system
the
into
will
the
(Enable)
will
wait
repetitive
3
will
by
the Wll, Control
then
Each
a
new
must
board
the
select
trigger
of for
by
to
0
occur
configuration
and
A/D
start
succeeding
write
be
performed
and
as
allow
described
Control
the
source
the
byte
a
clock
conversions
the
of
Control
at
the
the
state
Register.
conversion
on
to
channel
to is trigger
channel
clock
of
If
the
the
when
time
for
earlier
Register.
to
be
used.
set
on
(1),
the
select
Register).
rate
of
jumpers
bits
bit
4
will
selected
conversion
Control
be
to
7
is
4.
Stopping trivial. Control conversions, clearing
software
Simply
Register.
bit
4
initiated
disable
of
the
To
stop
stop the Control
conversions
writing
clock
clock
triggers
Register.
to
initiated
is
the
by
5-8
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Page 40
CHAPTER
6
CALIBRATION
6.1 This
INTRODUCTION
section DT2814 A/D adjusting R6,
the drawing
FULL
6.2
SCALE.
GUIDELINES Some
two Offset
in
general
performing
6.2.1
ASSUMPTIONS
1.
Calibration all Ground
2.
The
ft)
contains
board.
trimpots:
Appendix
guidelines
a
calibration
other
(pin
input long.
calibration
The
Adjust.
A
for
will
channels
18).
cable
calibration RS,
the
Refer
the
location
must
on
the
DT2814.
be
done
returned
is
less
procedures
is
Gain
to
the of
be
observed
on
Channel
than
3
for
performed
Adjust,
assembly
RS
and
0
to
Analog
meters
the
by
and R6.
when
with
(10
3.
Software readings
is
available
of
Channel
0
to and
provide
display
continuous
them
on
a
CRT.
6-1
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Page 41
CALIBRATION GUIDELINES
6.2.2
1.
2.
6.2.3
1.
2.
6.2.4 Connect
Figure
EQUIPMENT
Precision
REQUIRED
voltage Development equivalent.
Miscellaneous
PRECAUTIONS
Switch or
Connect indicated
the
removing
a
host
the
the in
INTERCONNECTIONS
the
voltmeter
6-1.
Corporation
cables
power
DT2814.
voltmeter
Figure
to
6-1.
the
source,
and
connectors.
off
to
DT2814
model
when
the
as
Electronic
501J,
installing
DT2814
shown
or
as
in
DT2814
FIGURE
6.3
6-1:
CALIBRATION
Calibration month
intervals changed. followed
voltages shown
in
CONNECTION
of
The
offset
by
the
are
different
Tables
Ch 0 (Jl,
AGND
PROCEDURE
the
DT2814
or
adjust
gain
6-1
and
PINl)
(Jl,
PIN18)
OF A VOLTMETER
when
adjust. for
should
the is
be input always
Note
each
6-2.
6-2
+
VOLTMETER
-
TO
performed
range
done
that
input
THE
the
range,
TP0009P
DT2814
at
has
first,
input
six
been
as
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Page 42
CALIBRATION
CALIBRATION
PROCEDURE
TABLE
I I DIGITAL I INPUT
I
SCALE
6-1:
FOR
DATA
UNIPOLAR INPUTS
!CODE(
CODING
HEX)
VALUES
I
RANGE
0-5V
I I
1----------------------------------------1
I +FS - 1
I +FS - 2
I
1/2
I
1
LSB
I DIGITAL I INPUT
I
SCALE
LSB LSB
scale
TABLE
I FFF I
I FFF I
I I
6-2: FOR
BIPOLAR INPUTS
!CODE(
800 001
DATA
HEX)
CODING
I
+/-5V
+4.9988 +4.
I
+2.5000
I
VALUES
9976
1.22mV
RANGE
I
+/-2.5V
I
I
I I
I
I
1----------------------------------------------l
I +FS - 1
I +FS
I
+1/2
I 1
LSB
I o I
I
-1
LSB
I
-1/2
I
-FS
I
-Fs
-2 FS
FS
+ 1
LSB
LSB
LSB
I FFF I
I FFE I
I
I
I
I
I
I
coo
801 800 7FF 400 001
ooo
+4.9976 +4.9952
I
+2.5000
I
2.44mV
I
o.oooo
I
-2.44mV
I
-2.5000
I
-4.9976
I
-5.0000
I
+2.4988
I
+2.4976
I
+1.2500
I
1.22mV
I
o.oooo
I
-1.22mV
I
-1.2500
I
-2.4988
I
-2.5000
I
I
I
I
I
I
I
I
I
6.3.1
Apply
adjust between
6.3.2 Apply
UNIPOLAR OFFSET ADJUST
a
de
the
output
UNIPOLAR GAIN ADJUST (FULL SCALE)
a
de
(4.9982V)
flicker
6.3.3
Apply
between
BIPOLAR OFFSET ADJUST
a
de negative potentiometer OOOH
and
input
voltage and
input
FULL 001H
offset
codes
adjust
codes
SCALE
R6
(see
voltage
potentiometer OOOH
of
1
FFE
voltage
(-4.9988V)
for
flicker
Table
and
the
6-3
of
and
gain
and
6-2).
1/2
LSB
001H
1/2
LSB potentiometer
FFF
(+/-5V
of
1/2
and
between
R6
(see
below
(see
RANGE)
LSB
adjust
(0.610mV)
for
flicker
Table
FULL
Table
6-1).
above
the
output
and
6-1).
SCALE
RS
for
the
offset
codes
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Page 43
CALIBRATION CALIBRATION
PROCEDURE
6.3.4
Apply
BIPOLAR GAIN ADJUST
a
de
(4.99635V)
flicker
6.3.5 Apply
negative
between
BIPOLAR OFFSET ADJUST
a
de
FULL potentiometer OOOH
6.3.6
Apply
and
001H
BIPOLAR GAIN ADJUST
a
de
(2.4982V)
flicker
between
voltage
and
input
SCALE R6
(see
voltage and
of adjust codes
voltage
for
Table
of
adjust
codes
(+/-SV
1
and
the
gain
FFE
and
(-2.4994V)
flicker
6-2).
(+/-2.5V
1
and
the
gain
FFE
and
1/2
LSB potentiometer
FFF
(+/-2.5V
of
1/2
and
between
1/2
LSB
potentiometer
FFF
RANGE)
below
(see
Table
RANGE)
LSB
adjust
output
RANGE)
below
(see
Table
FULL
6-2).
above
the
FULL
6-2).
SCALE
RS
for
the
offset
codes
SCALE
RS
for
6-4
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Page 44
CHAPTER
7
7.1 This
with
INTRODUCTION
chapter
the
7.1.1
This
input
BASIC
channels,
channel, digital until
any
scroll. program
system assumes
220H
10
20
30
40
50
60
70 80
90 100
110 120
130
and
CLS LOCATE
FOR IF PRINT GOTO PRINT
FOR
OUT
LET
A=INP(&H220)
IF
B=INP(&H221)
DT2814
EXAMPLE
program
doing code.
key
It will using
that
no
interrupts
3,1,1,12
Y=O
TO
Y>9
THEN
"ch
80
"ch
X=1 &H220,Y
A=O
A>=128
EXAMPLE
presents
board.
PROGRAM
taking
the
The
is
pressed.
is
overwritten
run
faster
their
the
DT2814
15
70
";
y;"
";
y;"
TO
3
THEN
PROGRAMS
two
example
1
performs
three
conversion,
program
if
BASCOM
is
are
" .
" .
I
130
ELSE
a
loop
samples
and
will
Output
by
it
is function.
set
for
enabled.
'Set
position
'Loop 'Print
I
'Sample 'Write,
starts
'Read
until
100
'Read
base
programs
on
of printing loop
data
the
new
compiled
a
base
cursor
on
all
the
channel
select
the
the
Status
FINISH
'If
set, conversion,
data high
+ 1
for
all data
sixteen
at
out
indefinitely
does
data.
on
the
The
program
address
to
a
known
channels
16
channel
times
3
channel,
conversion
Reg.
bit
sets
end
of
valid byte
at
use
each
the not
This
IBM
of
no.
7-1
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Page 45
EXAMPLE
PROGRAMS
INTRODUCTION
140
C=INP(&H221)
150
PRINT
160
NEXT
170
PRINT
180
NEXT
190
LOCATE
200
M$=INKEY$'
210
LOCATE
220
END
HEX$(8);"
X
Y
3,1,0,12
24,24,1,12
IF
";HEX$(C)
M$=""
THEN
'Read
base
'Print
'Get
'Do 'Set
previous
30
'If
'Else
and
low
high
three
next
cursor
then
+ 1
out byte,
channel
no
read stop
byte
at
the
low
readings
to
overwrite
data
keyboard
continue
16
channels
data-
byte
input,
7-2
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Page 46
EXAMPLE
INTRODUCTION
PROGRAMS
7.1.2 This
EXAMPLE
BASIC
number
indefinitely, It
performs previous exit
the program system
10 20
30
40 50
60 70
80 90
A=INP(&H220) 100 110
120 130
140 150 160 170
180
190 200 210
using
CLS
INPUT
IF
N>15
LOCATE FOR
FOR
OUT
LET
A=O
IF
A>=128
B=INP(&H221) C=INP( PRINT
NEXT PRINT NEXT LOCATE
M$=INKEY$:
PRINT LOCATE END
PROGRAM
program
(0-15)
prompts
and
sampling
as
the
sample
data
will
block
program
run their
"Enter
THEN
on
or
faster
BASCOM
Channel
190
3,1,1,12
Y=1
TO
16
X=1
TO
8
&H220,N
THEN
110
&H221)
HEX$(B);HEX$(C);" X Y
3,1,0,12
IF
M$=""
"Channel
Number
24,24,1,12
2
and
the
to
ELSE
ELSE
the
loops
printing
program
screen.
select
if
it
function.
Number
IF
90
THEN
out
user
a new
is
(0-15)";N
'Wait
desired
N<O
'Set
position '16 '8
samples
'Select
sample
'Read
for
'If
'Read 'Read
";
'Do 'Set
previous
50
ELSE
'If
loop
of
for
on
that
out
1,
overwriting
Hit
channel.
compiled
for
user
THEN
190
cursor
lines
per
channel,
Status FINISH
set,
data
valid
high
low
'Print
low
next
block
cursor
200
key
stop,
range-try
a
channel channel
the
any
on
key
the
to
channel
ELSE
to
a
data
per
line
Reg. bit
conversion byte
byte
data
byte
of
to
overwrite
data
otherwise again":
data.
the
to
This
IBM
input
40
known
block
trigger
high
data
done,
byte,
GOTO
20
7-3
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Page 47
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Page 48
APPENDIX A
This
the
appendix
DT2814.
BOARD
contains
ASSEMBLY
the
board
DRAWING
assembly
drawing
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A-1
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Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
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DATA
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COMPONENT
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DT2814
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01752
BOARD
__
ASSEMBL.
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Page 51
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Page 52
INDEX
A/D A/D
Conversion, Data
Register, Accessories, Accuracy, Analog
Inputs, Architecture, Architecture Assembly
Base
Address Bipolar Bipolar Board
Drawing,
Gain Offset
Assembly
Calibration,
Assumptions,
Bipolar Bipolar Equipment
Guidelines,
Interconnections, Precautions, Procedure,
Unipolar Unipolar
Clock
Base
3-6
Compatible
2-6
Configuration,
Base Clock
Address
Base
3-6
Input
Ranges, Interrupt Jumper
Summary,
Connection
4-1
Connections
Panels,
Connectors
.Control
Register,
Conversion
A/D,
Dynamic
5-7
Performance,
Equipment Example
Programs,
Figures
5-7
1-1
2-2
2-1
5-1
and
Selection,
Adjust,
Adjust, Drawing,
6-1
6-1
Gain
Adjust,
Offset
Required,
6-1
6-2
6-2
Gain
Adjust,
Offset
Frequency Screw
3-4 Selection,
Frequency
3-5
Level,
to
IBM
to
Screw
4-4
and
Cables,
Required,
5-6
Operation,
A-1
6-4
6-3
6-4
Adjust,
6-2
6-2
Adjust,
Selection,
Terminal
Selection,
3-7 3-7 PC
Backplane, Terminal
2-5
5-2
2-2
6-2
7-1
3-4
A-1
6-3
6-3
6-3
Panels,
3-4
5-1
List,
Initialization, Input
v
Ranges,
5-7
3-5 Interconnections, Interface Interrupt
Jumper
Characteristics, Level,
Summary,
3-7
List
Figures,
Tables,
Operation, Overview,
v
vi
5-7
1-1
Physical/Environmental, Pin
Assignments, Power Precautions, Preface, Programming Programs,
Requirements,
Example Example
6-2
vii
Sequence, 7-1 Program Program
Register
A/D
Data,
Control,
Status,
5-6
5-2
5-4
Sequence
Programming,
Single-ended
5-8
Connection
4-6
Specifications,
Accuracy, Analog
Inputs,
Compatible
Panels, Connectors Dynamic
Performance,
Interface
2-1
2-2
Screw
2-6
and
Characteristics, Physical/Environmental, Power Thermal
Status
Requirements,
Characteristics,
Register,
Tables
List,
vi
4-1,
3-7
P1,
4-2
2-5
1,
7-1
2,
7-3
2-1
Terminal
Cables,
5-4
6-2
2-4
2-5
5-8
scheme,
2-5
2-2
2-4
2-5
2-5
2-2
Index-1
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Thermal
Characteristics,
Trademarks, Unipolar
Unipolar
2
Gain Offset
Adjust,
Adjust,
6-3
2-2
6-3
Unpacking,
No
Apparent
Visible Unpacking User
Connection,
3-1
Damage, Damage, and
Conf~guration,
3-1
3-2
4-3
3-1
Index-2
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