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ADC-16
User Manual
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Keithley ADC-16 User Manual

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ADC-16
Analog
Input
Board
User
Guide
Warranty Information
All products manufactured by Keithley Data Acquisition are warranted against defective materials and workmanship for a period of one year from the date of delivery to the original purchaser. Any product that
is
found to
be
defective within the warranty period will, at the option of
the manufacturer,
be
repaired or replaced. This warranty does not apply
to products damaged by improper use.
Warning
Keithley Data Acquisition assumes
no
liability for damages
consequent
to
the use of
this
product. This product is not designed
with components of a level
of
reliability suitable for use in
life
support or critical applications.
Disclaimer
Information furnished by Keithley Data Acquisition is believed to be accurate and reliable. However, Keithley Data Acquisition assumes no
responsibility for the use of such information nor for any infringements of patents or other rights of third parties that may result from its use.
No
license is granted by implication or otherwise under any patent rights of Keithley Data Acquisition.
Copyright
All rights reserved.
No
part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical, photo-reproductive, recording, or otherwise without the express prior written permission
of
the Keithley Data
Acquisition.
Note:
Keithley MetraBytem is a trademark of Keithley Instruments. Basic* is a trademark of Dartmouth College.
IBM@
is
a registered trademark of International Business Machines
Corporation.
PC,
XT,
AT,
PW2,
and Micro Channel Architecture@ are trademarks
of
International Business Machines Corporation. Microsoft@ is a registered trademark of Microsoft Corporation. Turbo
C@
is a registered trademark
of
Borland International.
-
iv
-
Contents
CHAPTER
1
.
INTRODUCTION
1.1 Functional Overview
..................................
1.1
1.2 Software Overview
...................................
1.2
1.3 Accessories
......................................
. 1-3
1.4
Specifications
......................................
1.4
CHAPTER
2
.
INSPECTION. CONFIGURATION. & INSTALLATION
2.1 Inspection
........................................
2.1
2.2 Configuration
......................................
2.1
2.3 The Main
I/O
Connector J1
...............................
2.3
2.4 Software Installation
..................................
2.3
2.5 The Configuration Program
...............................
2.4
2.6 Hardware Installation
..................................
2.5
CHAPTER
3 . OPERATING & PROGRAMMING OVERVIEW
3.1 General
.........................................
3.1
3.2 The Pop-up Control Panel
...............................
3.1
.
3.3 The Call Driver
.....................................
3.1
3.4
Low-Level-Register
I/O
Programming
.........................
3.1
CHAPTER
4
.
THE POP-UP CONTROL PANEL
4.1 Overview
........................................
4.1
4.2 Driver Descriptions
...................................
4.1
4.3 Driver-File Loading/Unloading Options
........................
4-1
4.4 Syntax Conventions
..................................
4.3
4.5 VLEXE: Loading
&
Unloading
.............................
4.4
4.6 PADCl6.EXE: Loading
&
Unloading
.........................
4.6
4.6
Loading ANSLSYS
...................................
4.8
CHAPTER
5
.
POP-UP CONTROL PANEL OPERATION
5.1 Preliminary Requirements
...............................
5.1
5.2 Getting Started
.....................................
5.1
5.3 Important Hot Key Combinations
............................
5.1
5.4 The Control Panel
....................................
5.2
5.5
The Data Logging Panel
................................
5.3
CHAPTER
6
.
THE CALL INTERFACE
6.1 General
.........................................
6.1
6.3 QuickBASIC 4.0+, Including Professional BASIC
7.0+
................
6-7
6.5 List Of Calls
......................................
6-20
6.6 Glossary Of Call Terms
................................
6-22
6.2 GW BASIC, BASICA.
&
BASIC
............................
6.1
6.4 QBASlC
......................................... 6-13
CHAPTER
7
.
INDIVIDUAL CALL DESCRIPTIONS
.
v-
Contents
CHAPTER
8 . REGISTER-LEVEL
I/O
MAPS
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
Introductory Information
................................
8-1
I/O Register Address Map
...............................
8-1
AID
Registers (Base Address
+O
&
+1)
........................
8-1
MUX & Gain Register (Base Address
+2)
......................
8-2
Control Register (Base Address
+3)
.........................
8-3
Status Register (Base Address
+3)
..........................
8-4
Typical Programming Sequence
...........................
8-4
BASIC Example Program
...............................
8-5
CHAPTER
9
.
CALIBRATION
9.1
Calibration Interval
...................................
9-1
9.2
Calibration Program
..................................
9-1
9.3
Required Test Equipment
...............................
9-1
CHAPTER
10
.
FACTORY RETURNS
APPENDIX
Appendix A . Summary
Of
Error Codes
...
.
vi-
CHAPTER
1
INTRODUCTION
1.1
FUNCTIONAL
OVERVIEW
General
The AX-16 is a low-cost, high-resolution (16 bit), analog input board for ISA and EISA bus computers (IBM PC/XT/AT or compatible). An integrating
A/D
converter performs up to 16 conversions/sec while ensuring repeatability in noisy environments. Eight differential input channels offer 16-bit resolution
(15
bit + sign). Figure
1-1
is a block diagram of the ADC-16.
1 mA
SOURCE
O--
-
Vref
r,
(+5
V)
MUX
CHO HI
CHO
LO
CHI HI
CH1
LO
CH2 HI
CH2
LO
CH3 HI
CH3 LO
CH4
HI
CH4
LO
CH5 HI
CH5
LO
CH6 HI
CH6
LO
CH7 HI
CH7
LO
L.L.
GND
L.L. GND
L.L.
GND
GAINS
1,
10.
100
I
SCALING
fi
-
i
3.2767
I
.,
17
0
CONTROL/SiATUS
MUX
&
GAIN
&
INTERRUPT
SELECT REGISTER CONTROL REGISTER
I I
INTERNAL
DATA
aus
COMMON
N.3.
N.C.
COMMOlv
N.O.
N.C
OPD
C=:
EX1
EX2
EX4
IPO
IP
1
+5
V
OUT POWER COU POWER COM
IUI
IBM
PC
BUS
Figure
1-1.
Block
diagram
of
the
ADC-16.
Gains of
1,10,
and
100
are software-programmable. A single gain adjustment sets the full scale of
every range.
No
additional adjustments are required since the zero of every range is automatically
corrected.
Additional features include two
TTL
compatible, general-purpose digital outputs and two general-
purpose TTL/CMOScompatible digital inputs. The digital outputs
also
drive two internal Form C
relays on the ADC-16. These relays
are
available for switching and expansion applications.
1-1
ADC-16
USER
GUIDE
Three more digital outputs become available when the optional STA-EX8 expansion multiplexer(s)
is
not used. A
1
mA,
high-precision current source with a compliance of -10 V to
+4
V
allows excitation
of resistance-based transducers such as RTDs.
All
connections to the ADC-16 pass through a standard
37-pin D connector using the manufacturer's C-1800 cable. Optional equipment for the ADC-16 includes two screw-termination boxes: the STA-U and the STA-
EX8. The STA-U provides access to all ADC-16 interface signals via miniature screw-terminal connectors. The STA-EX8 provides access to all ADC-16 interface signals via miniature screw­terminal connectors, and it provides eight additional input channels. Up to eight STA-EX8s may be added
to
an ADC-16, resulting in
64
fully differential channels.
Operating
Modes
A/D
Transfers
The ADC-16 conducts A/D conversions on a self-timing basis; the conversions progress as quickly as the A/D circuitry can operate. When a previous conversion ends, the Driver starts another.
This
process continues until the scan is complete.
When a STart/Stop array is in use, the number of conversions is equal to the number of channels specified in the array. This number can be up to
64
if eight STA-EX8s are in the system.
When a Channel/Gain array is in use, the number of conversions is equal to the number of entries in
the array.
This
number can
be
up to 256.
There are three modes of A/D operations:
SYNCHRONOUS MODE
-
where the transfers are occur in the foreground, forcing the user to
wait for the board to finish. This mode is invoked by the K-Syncstart call
(
see Chapters 6 and
7).
INTERRUPT MODE -
where the transfers occur in the background, allowing the user to execute code until the board finishes. This mode is invoked by the K-IntStart call and tested for completion by the K-IntStatus call (see Chapters 6 and
7).
These
two
modes require that channel and gain information
be
set into Frames using the K-SetBuf
and K-SetChanGary or K-SetStartStopG calls. For more information on Frames, refer to Section
6.6.
IMMEDIATE MODE
-
where when a single A/D operation takes place, all information is passed
via the Call parameters rather than by Frames, as in the two previous modes.
Digital Operations
Digital Input and Output operate
only
in the Immediate Mode, as described above for
Immediate
Mode
1.2
SOFTWARE OVERVIEW
This manual refers to the ADC-16 software as the
Distribution
Software.
The Distribution Software contains a softwareinstallation program, driver files, utility files, calibration files, and programming example files. For a list
of
these files, with descriptions, refer to the ASCII file
FILES.DOC.
1-2
ADC-16
USER
GUIDE
Absolute Accuracy
Gain = 1:
M.O1%
of
range typical
Gain
=
10:
f0.05%
of
range
typical
Gain
=
100:
M.05%
of
range typical
Relative Accuracy
Gain
=
l,lO,
and
100
maximum.
+_0.03%
maximum. kO.lO% maximum. k0.15% maximum.
Noise (Typical)
Gain = 1:
<
k1
bit
rms.
Gain
=
10:
c
+_1
bit
rms.
Gain
=
100:
<
+3
bits
rms.
Input Impedance:
Greater
than
100
MegOhms.
Input Bias Current:
50
nA max.
Common Mode Rejection:
Gain
=
1
-
100
dB
typ,
80
dB
min.
Gain
=
10
-
110
dB
typ,
86
dB
min.
Gain
=
100
-
120
dB
typ,
92
dE3
min.
Common Mode Range:
+_6
V.
Max Input Volts
w/o
Power On:
k35
VDC.
Damage:
Power
Off
k20 VDC.
DIGITAL
I/O
Digital Inputs
Number
of
Inputs:
2,
TTL/CMOS
compatible.
Logic Type:
High input returns
a
1.
Logic Levels:
Vil
=
.8
V, Vih
=
2.0
V.
Iil
=
-.2
mA, Iih
=
20
uA.
Digital Outputs
Number
of
Outputs:
5
TTL
compatible.
Logic Type:
Vol
=
.5
V rnax at 8.5 mA.
Voh
=
2.7 V min at
-0.4
mA.
Relay Outputs
Number
of
Channels:
2
Form
C.
Max Current:
2.0
A at
28
Vrms (resistive).
POWER REQUIREMENTS
+_0.005%
of
range typical
kO.012%
+5
V:
800
mA typ, 1 A max.
+12
V:
25 mA max.
-12
V:
15 mA max.
1-4
ADC-16
USER
GUIDE
POWER REQUIREMENTS
+5
V:
10
mA
typ,
100
mA
max.
+12 V:
Not
used.
-12V:
Notused.
ENVIRONMENTAL
Operating Temperature:
0
to
70
"C.
Storage Temperature:
-25
to
85
"C.
Humidity:
0
to
95%
noncondensing.
PH YSlCAL
Dimensions:
6.7 x 5.4 x 2.3
in.
(17.0 x 13.7
x
5.8
cm)
Weight:
11
oz
(312
g).
STA-U
Board
This
board
is
simply a wiring feed-through for facilitating connections to the
ADC-16.
As
such, the
STA-U
has no meaningful specifications beyond the following.
ENVIRONMENTAL
Dimensions:
6.7 x 5.1
x
2.4
in.
(17.0 x 13.0
x
6.0
cm)
Operating Temperature:
0
to
70
"C.
Storage Temperature:
-25
to
85
"C.
Humidity:
0
to
95%
noncondensing.
1-6
CHAPTER
2
INSPECTION, CONFIGURATION,
&
INSTALLATION
2.1
INSPECTION
After removing the wrapped Board
(ADC-16)
from its outer shipping carton, proceed as follows:
1.
Before unwrapping the Board, place one hand firmly
on
a metal portion of the computer chassis
to
discharge static electricity from yourself and the Board (the computer must be turned Off but grounded).
2.
Carefully remove the Board from its anti-static wrapping material.
3.
Inspect the Board for signs of damage. If any damage is apparent, return the Board to the factory.
4.
Check
the
remaining contents of your package against the packing list
to
be sure your order
is
5.
When you are satisfied with preliminary inspection, you are ready to configure the Board. Refer
complete. Report any missing items to the factory immediately.
to the next section for configuration options.
2.2
CONFIGURATION
Switch
&
Jumper
Settings
Figure
2-1.
Location
of
Base Address switch and Input Range jumper.
2-1
ADC-16
USER
GUIDE
The Base Address
Switch
The factory-set Base Address is 300h (768 decimal).
If
this address
is
already in
use,
change the setting of the Base Address Switch (refer to Figure 2-2 for the address-setting arrangement of the Switch). Any new Base Address setting must
be
within the
range of OOOh to 3FFh
(0
to 1023 Decimal) on an
8-
byte boundary. Use the Table 2-1 as an aid to
selecting a Base Address.
ADDRESS ADDRESS LINE VALUES
LINE
DECIMAL
*EX
512
2'X
256
>CC
64
10
16
IS
88
128
en
iiiiiii
Switch
settings
indicote
a
value
of
512
+
256
=
768
Decimol
200
+
1W
=
300
Her
or
1234567
Figure 2-2. Base Address Switch
Table
2-1.
PC/XT/AT
I/O
Address Space
HEX RANGE USAGE HEX RANGE USAGE
000-00F 020-02 1 040-043 060-063 060-064 070-07
1
080-O8F
OAO-OA
1
OAO-OAF OCO-ODF OFO-OFF
IFO-IFF 200-20F 210-21F 238-23B 23C-23F 278-2717 2BO-2BF
8237 DMA
#I
8259 PIC
#I
8253 Timer 8255 PPI
(XT)
8742 Controller (AT) CMOS
RAM
&
NMI
Mask Reg.
(AT)
DMA
Page Registers
8259 PIC #2 (AT)
NMI
Mask Register
(XTj
8237 DMA #2 (AT) Coprocessor
Hard
Disk (AT) GameKontrol Expansion Unit
(XT)
Bus Mouse
AIL
Bus Mouse
Parallel Printer
EGA
2CO-2CF 2DO-2DF 2EO-2E7
2E8
-
2EF
2F8-2FF
3
00-
3 OF 3 10-3 1F 320-32F 378-3717 380-38F 3AO-3AF 3BO-3BB 3BC-3BF 3CO-3CF 3DO-3DF
3E8-3EF
3FO-3F7
3F8-3FF
EGA
EGA
GPIB
(AT) Serial Port Serial Port Prototype Card Prototype Card Hard Disk
(AT)
Parallel Printer
SDLC SDLC
MDA
Parallel Printer EGA CGA Serial Port Floppy Disk
Serial Port
The
Jumper
The only bard jumper is a 2-position arrangement for setting the A/D Full Scale Range. This jumper
is set and calibrated by the factory for a Full Scale Range of i3.2768
V,
as shown in Figure 2-3. To
change to the
k5
V
Range, set the jumper accordingly and recalibrate the Board.
See
Chapter 9 for
calibration instructions.
RANGE
3.276v
J2
m
5v
Figure 2-3. J2 jumper shown with factory setting.
The k3.2768 V scaling has the advantage
of
round-number bit resolution
(100,10,
or 1 uV/bit), which
facilitates scaling from the binary output of the converter. The
k5
V
scaling has the advantage of
matching most commercial signal sources and transducers
(1OV
with
2/1
attenuator). Table 2-2 lists
the Full Scale/Gain ranges and their corresponding bit resolutions.
2-2
CHAPTER
2:
INSPECTION, CONFIGURATION, & INSTALLATION
Table
2-2.
Input Range
vs.
Bit Resolutions
3.276
V
INPUT RANGE
5 V INPUT RANGE
GAIN RANGE RESOLUTION RANGE RESOLUTION
1
f3.2768
V
100
uv
i5
v
152.6
uV
10
f327.68
mV
10
uv
i500
mV
15.26
uV
100
k32.768
mV
1
uv
k50
mV
1.526
uV
2.3
THE MAIN
I/O
CONNECTOR
J1
Analog
and Digital
I/O
use a 37-pin, D-type connector accessible
LL
GND
from the rear of the computer. Figure
2-4
shows the connector and
CH
0
LO
IN
its pinouts.
CH ' LO
IN
CH
2
LO
IN
CH
3
LO
IX
CH
4
LO
lh
CH
5
LO
IN
CY
6
LO
IN
CH
7
LC
IN
VREF
(+jV)
1
mA
SOURCE
EX4
PWR
CCM
OPO
CP
1
REL
1
N.C.
QEL
1
N.C
REL
0
C
+5
V
PWR
Figure
2-4.
Main
I/O
Connector
l8
36
I'
35
34
5
33
32
31
29
25
27
26
25
24
23
22
21
20
l2
33
I1
lo
4
>
Ch
3
H'
I\
CH
1
k
IU
C'i
2
r
IN
CY
3
H,
I\
c
4:
i\l
CH
5
it;
!A
CH
6
HI
IU
CH
7
HI
IN
LL
GND
LL
GNC
PWR
COM
EX2
EX
1
1
PO
lP1
REL
1
C
REL
0
X.0.
REL
0
K.C.
2.4
SOFTWARE INSTALLATION
Backing
Up
The Distribution Software
As
soon as possible, make a back-up copy of your Distribution Software. For the back-up copy, be
sure to have one (or more,as needed) formatted diskettes on hand. First, place your Distribution
Software diskette in your PC's
A
Drive and
log
to
that drive by typing
A
:
.
Then, use the DOS
COPY
or
DISKCOPY
command,
as
described in your DOS reference manual (DISKCOPY is preferred
because it copies diskette identification,
too).
Installing The Distribution Software
Your Distribution Software is usable only after it is installed on the hard drive of your
PC.
For
installation, insert the Distribution Software diskette (Diskette
#1)
in the A Drive, and type
INSTALL
<Enter>.
Then follow the prompts. The software requires approximately
620
KB
of hard-drive
space.
2-3
ADC-16
USER
GUIDE
The README.DOC File
To learn of last-minute changes,
be
sure to read the ASCII file
READMEDOC.
This is an ASCII text
file that is readable with any text editor (word processor) or with the DOS
TYPE
command.
The FILES.DOC File
To learn the contents of your Distribution Software, refer to the ASCII file
FILESDOC . This file lists
and describes each of the files in the Distribution Software. This is an ASCII text file that is readable with any text editor (word processor) or with the DOS
TYPE
command. FILES.DOC lists and briefly
describes the contents of the Distribution Software.
2.5
THE
CONFIGURATION
PROGRAM
Overview
NOTE:
Before you can run the Configuration Program, you must install the Distribution Software (Section
2.4).
Your ADC-16 Distribution Software includes the Configuration Program
ADC16CFG.EXE , whose
purpose is to assist you in setting up Board parameters and saving them to a new or existing configuration file. The default configuration file in your Distribution Software is
ADCI6.CFG
;
however, the Configuration Program allows you to save a set of parameters to any configuration file you specify.
A
configuration file is a necessary reference for Call Driver programs (Chapters 6 and
7)
and for the
Pop Up Control Panel. The file contains information such as the number of ADC-16s in use, Base
Address, Range, Interrupt Level, and the number of STA-EX8s linked
to
each Board.
If
you bypass the
configuration program, the Call Driver refers to the ADC16.CFG default file.
Factory Defaults
Factory settings for the ADC16.CFG file are as follows:
BoardNumber
0
Board Name
ADC16
Base Address
&H300
Range
3.2768
Number Type
SignMagnitude
Interrupt Level
7
Installed STA-EX8s
0
Running the Configuration Program
To
start the configuration program, log to its directory, and type
ADCl6CFG
follow the on-screen instructions.
f
i
1
ename
.
Then
2-4
ADC-16
USER
GUIDE
4.
Plug the other end of the C-1800 cable into one of the
two
37-pin connectors on the STA-U.
5. Make any other connections the STA-U, as required by your application.
6. Replace the cover on the STA-U and tighten the screws,
if
desired.
STA-
EX8
Installation
OVERVIEW
The STA-EX8 is a multiplexed expander box with screw connections to the ADC-16 interface signals
and the eight input channels. Up to eight STA-EX8 Boards connect to a single ADC-16 to offer up to
64
fully differential channels. The STA-EX8 has two 12-screw terminal blocks (TBI and TB2) and two
24-screw terminal blocks (TB5 and
TB6)
allowing access to the ADC-16 interface signals.
TB1 and TB2 provide access for digital input and power signals. TB2 provides two TTL-compatible digital outputs,
two
TTL/CMOScompatible digital inputs, and access for power signals.
TBl
allows
direct connection to the
two
internal Form C relays on the ADC-16. Note that the signals through
TBl
and
TE32
run in parallel across the C-1800 cable; this
is
significant when accessing the power signals.
Figure 2-5 shows the signal assignments for
TBl
and
TB2.
TB2
TB
1
,
Figure
2-5. TB1
and
TB2
signals.
TB5 and TI36 accommodate connections to the input channels. In addition, these two terminal blocks provide extra input channels (see section on input-channel assignments, ahead). Figure 2-6 shows the signal assignments for TB5 and TB6.
I
I
Figure
2-6. TB5
and
TB6
signal assignments.
Two 37-pin connectors share pin assignments with the ADC-16 Main
1/0
Connector. These two
connectors may
be
used to
daisy-chain
multiple STA-EX8s. Refer to Figure 2-4 for pinouts of these
connectors.
CHO
CHI CH2 CH3 CH4 CH5 CH6
CH7
mlrl
TB4
TB
3
Figure
2-7.
Channel Select Jumper
2-6
CHAPTER
2:
INSPECTION, CONFIGURATION, & INSTALLATION
Finally, the Channel Select Jumper (TB3 and
TB4)
determines which ADC-16 input channel the STA­EX8 will use for communication. You may have up to eight STA-EX8s connected to one ADC-16. Each STA-EX8 must have its own ADC-16 input channel. For example,
if
your application requires
two STA-EX~S, one might be assigned to Channel
0,
the other to Channel
1.
Figure
2-7
shows the
Channel Select Jumper configured for Channel
1.
INSTALLATION PROCEDURE
Obtain the required C-1800 cables, and connect STA-EX8b) to an ADC-16 as follows:
1.
Be
sure your computer is off.
2.
Remove the top cover of the STA-EX8 (loosen the four corner screws and remove; then,
lift
the
cover).
3. Set the Channel Select Jumper for an available ADC-16 input channel.
4.
Plug one end of the C-1800 cable into the ADC-16's
I/O
Connector.
5.
Plug the other end of the C-1800 cable into the first 37-pin connector
(J1)
on STA-EX8
#1.
6.
If
you are connecting more than one STA-EX8, daisy-chain the first STA-EX8 to the second. Plug
one end of a second C-1800 cable into the second 37-pin connector
(J2)
of STA-EX8
#1.
Then,
connect the C-1800 to
J1
on STA-EX8
#2.
Repeat this step for successive STA-EX8s. (Remember,
you cannot install more than eight STA-EX8s.I
7. Make all other STA-EX8 connections, as required by your application.
8.
Replace the cover(s) on the STA-EX8(s).
INPUT CHANNEL ASSIGNMENTS
When programming the ADC-16 to accept the data presented on the channels added by the STA-EX8
multiplexer,
you
must understand the assignment of the input channels. First, the Channel
Select
'jumper on each STA-EX8 determines which ADC-16 input channel
(CHO,
CHI, CH2, CH3, etc.) the
STA-EX8 will use for communication. The multiplexed channels
(EXO,
EX1,
etc.) are then allocated
consecutively from the assigned ADC-16 channel. For example, if your application has two STA-EX~S,
you
will assign the first STA-EX8 to ADC-16 Channel
CHO.
The multiplexed channels will then be
allocated as follows: EX0
=
Channel
0,
EX1 = Channel
1,
EX2 = Channel
2,
...
EX7 = Channel 7. Then,
you
will assign the second STA-EX8 to ADC-16 Channel CH1. The multiplexed channels
of
the
second STA-EX8 will then
be
EX0 = Channel
8,
EX1
=
Channel
9,
...
EX7 = Channel
15.
The remaining
ADC-16 input channels will then follow EX7
=
Channel
15;
that is, CH2 = Channel 16, CH3 = Channel
17,
...
CH7 = Channel
21.
Be aware that the ADC-16 input channels run in parallel across the cable.
For example, the CH2 output is associated with channel 16 on both STA-EX8s. Figure
2-8
illustrates
this arrangement.
Note that the STA-EX8 multiplexed inputs are not usable by the Pop Up Control Panel.
2-7
ADC-16
USER
GUIDE
C-1800
AOC-16 MAIN
I/
-1
I
CONNECTOR
L
NOT AVAILABLE FOR CONNECTIONS AS THESE CHANNELS
ARE BEING
USED
BY
THE STA-EX8 MULTIPLEXERS.
0
0
I
U
z
CHO
=
STA-EX8
#I
*
CH1
=
STA-EX8
82'
CH2 = CHANNEL
15
CH3 = CHANNEL
17
CH4 = CHANNEL
18
CH5 = CHANNEL 19 CH6
=
CHANNEL 20
CH7
=
CHANNEL 21
EX0 = CHANNEL
3
EX1 = CHANNEL 1
EX2
=
CHANNEL
2
EX3 = CHANNEL
3
EX4 = CHANNEL
4
EX5 = CHANNEL
5
EX5 = CHANNEL
6
EX7 = CHANNEL 7
STA-EX8
CHO
=
STA-EX8
#l
*
CH1 = STA-EX8
#2'
CH2 = CHANNEL
:5
Cq3 = CHANhEL
17
CH4 = CHANNEL
18
CH5 = CHANNEL :9 CH5
=
CciANNEL
20
CH7 = CHANNEL
2:
EX0 = CHANNEL
8
EX1 = CHANNEL
9
EX2 = CHANNEL 10
EX3
=
CHANNEL 11
EX4 = CHANNEL
12
EX5 = CHANNEL 13 EX5
=
CHANNEL
iL
EX7 = CHANNEL 15
STA-EX8
Figure
2-8.
Example
of
Input Channel Assignments.
2-8
CHAPTER
3
OPERATION
&
PROGRAMMING
OVERVIEW
3.1
GENERAL
The ADC-16 Distribution Software Package provides the following options:
The Pop Up Control Panel The Call Driver for BASIC Low-level-Register 1/0 Programming
Additional programming options, PASCAL and C support, and Windows
3.x
languages support
are
available in the Advanced Software Option.
3.2
THE POP UP CONTROL PANEL
The Pop Up Control Panel allows you direct control of ADC-16 operation without programming.
You
may configure the board to perform an analog or digital operation and to store the resultant data in a disk file. The Pop-up uses two control panels that you may pop up with a keyboard sequence and control using either the keyboard or mouse while under DOS or inside an applications package. This Interface provides a quick way
to
test your board as well as to debug/monitor operation.
By
selecting
the data logging menu, you may
turn
the ADC-16 into an automatic data logging system.
Chapter
4
contains instructions for loading the Pop Up Control Panel drivers. Chapter 5 covers
operation.
3.3
THE CALL DRIVER
The Call Driver is a collection of functions (Calls) for use in programs written in Interpreted BASIC, QuickBASIC, or QBASIC. The Calls allow you to write control programs without using register-level programming, and they perform the most commonly used set-up and operating functions. The Advanced Software Option provides Call Drivers for PASCAL and C and Windows
3.x
languages.
Chapter 6 lists and briefly describes each of the Call drivers and each of the Calls. Chapter
7
covers
the use of each Call and provides examples for Interpreted BASIC, QuickBASIC, and QBASIC.
3.4
LOW-LEVEL-REGISTER
I/O
PROGRAMMING
You
may also program the ADC-16 by writing directly to the on-board registers. Chapter 8 supplies
ADC-16 register maps and corresponding bit functions.
3-1
CHAPTER
4
THE POP UP CONTROL PANEL
4.1
OVERVIEW
The Pop Up Control Panel is a software tool for setting up and monitoring the operation
of
your ADC­16 board. In its monitoring capacity, the Pop-up is also useful for verifying settings and for isolating incorrect settings or problems.
Supporting software for the Pop-up consists of the two drivers
VLEXE
and PADC16.EXE; both
drivers are in the Distribution Software. For descriptions, refer to Section
4.2.
To
use the Pop Up Control Panel, you must first load
VI.EXE
and PADC16.EXE into DOS memory.
Loading may
be
via the DOS command line or via batch file. For complete loading instructions, refer
to Sections
4.4
and
4.5.
4.2
DRIVER DESCRIPTIONS
VI.EXE
PADCl6.EXE
Virtual Instrument driver program that supports the graphics, functions, and background operations
of
the Pop Up Control Panel for the ADC-16 and other products from the manufacturer. This driver occupies approximately
55K
of DOS memory, and
it
must be loaded before
PADC16.EXE.
The driver program that supplies the graphics, functions, and background operations for the ADC-16 Pop Up Control Panel. This program loads from the
DOS
command line, and it must be loaded after
VLEXE.
After loading these drivers, you may display
or
hide the Pop Up Control Panel panels using
hot
keys,
either the default hot keys or those you assign during the PADCl6.EXE loading. Pop Up Control Panel panels occupy the top eight character lines of the computer display; you operate their controls by either mouse or keyboard. For complete Pop Up Control Panel opcrating instructions, refer to Chapter
5.
4.3
DRIVER-FILE LOADING/UNLOADING OPTIONS
General
Your options for loading and unloading driver files are as follows:
Via the AUTOEXEC.BAT file (for loading only).
Via the command line.
4-1
ADC-16 USER GUIDE
Via a batch file. Via the SHOW.BAT utility.
With each of these options, the load/unload order must be as follows:
ProDer loadinp
-
order:
First,
load
VI.EXE
Then,
load
PADC16.EXE
Prowr unloading. order:
First,
unload
PADC16.EXE
Then,
unload
VI.EXE
Loading Via AUTOEXEC.BAT
When you load via the AUTOEXEC.BAT file, your driver files load automatically with each computer boot-up. The files remain active until you unload them or shut down the computer.
Modify the AUTOEXEC.BAT file to include driver-loading instructions in either of two ways,
as
follows:
1.
Use a text editor. Edit AUTOEXEC.BAT to include
VI PADC16
Note that using these instructions without switch options gives you default settings (see Chapter
2
for default settings).
To
change the default settings, use the switch options
described in Section
4.5.
2.
Use the ATXSETUP.EXE setup utility (from the Distribution Software) to automatically install the basic driver-loading instructions in AUTOEXEC.BAT. To use this utility,
log
to the
directory containing the Distribution Software and
type
ADCSETUY
c
Enter
>
.
Loading/Unloading From The Command Line
This method allows you to load and unload the driver files on an as-needed basis. You may
also
change your switch parameters with each loading. Unfortunately, this method can be tedious, especially when your entry contains an error. Drivers loaded from the
DOS
command line may be
unloaded from the command line, or they may be unloaded by rebooting the
PC.
Loading/Unloading Via Batch Files
Batch files also allows you to load and unload your driver files on an as-needed basis. However, you are confined to a single set
of
switch parameters unless you modify your start-up file or you have
additional batch files.
You
must also use separate batch files for loading and unloading. Use a text
editor to create your batch files, and be sure you insert your instructions in the correct order (refer to
LoadinglUnIoading
Order
1.
4-2
CHAPTER
4:
THE POP UP CONTROL PANEL
Loading
Via
SHOW.BAT
The Distribution Software contains the file
SHOW.BAT
for the purpose of fast and easy batch-file
loading.
SHOW.BAT
loads
VI.EXE
and PADC16.EXE in the required order, leaving you with the
Pop
Up Control Panel on the screen.
Note that loading
PAX16
without switch options gives you the board's default settings. See Chapter
2
for a list of default settings.
4.4
SYNTAX
CONVENTIONS
Unless otherwise noted, the syntax for the driver load/unload sections Sections
4.5
and
4.6)
use
the
following character-formatting rules:
Bold
=
Indicates a mandatory entry, as follows:
BOLD
UPPER-CASE : enter exactly what is shown.
bold
lower-case
:
substitute a name, string, or value.
Italic
=
Indicates oDtional entw , as follows:
ITALIC UPPER-CASE
:
enter exactly what is shown.
ifalic lower-case
:
substitute a name, string, or value.
Plain
=
Indicates characters not reauired for execution of the command.
Plain
characters ap ear in the syntax only for clarity; whether used
or not, they have no e
P
fect.
4-3
ADC-16
USER
GUIDE
4.5
VI.EXE:
LOADING & UNLOADING
Syntax for loading/unloading
VI.EXE
is as follows:
NOTE: Refer to Section
4.4
for syntax conventions.
path
Vf.exe
MONO
/HK
=
x
/MK
=
m
/SK
=
s
/U
where
path
DOS
path to VI.EXE. Example:
C:\ADC16\
MONO
Optional command for computers with monochromatic displays.
If
MONO
is
not specified,
COLOR
is assumed.
/HK
=
x
Help Key switch: to specify your choice of key(s) for bringing up the Help Screen for the Pop Up Control Panel. The default Help Keys are
<
Alt
>
+
<
H
>.
x
is one, two, or three keys, as follows:
(1)
One key: any choice
of
c
A
>
through
< Z > , <
F1>
through
<
F10
>
,
<O>
through c9>,or
<Tab>,
<Esc>,or
<?>;
(2)
Two or three keys: it can be a combination of the
<
Ctrl>
and/or
<
Alt > key(s) plus any choice of
< A >
through
< Z > , <
F1>
through
<F10>,
<O>
through <9>,or
<Tab>,
<Esc>,or
<?>.
Note that your entry must
be
spelled out. For example, entering
/HK
=
F1
assigns the function key
<
F1>
to
be
the Help Key. Or entering
/HK
=
Ctrl
D
specifies that the
c
Ctrl>
and
< D >
keys must be pressed at the same time to
bring
up the Help screen.
IMK
=
m
Mode
Select Key switch: to specify whether the Pop-up Menu is to be
Keyboard or a Mouse operated. The default Mode Select keys are
<
Alt
>
+
< M > . Using the Mode Select key combination switches the Pop-up Menu
into Keyboard mode; from there, you press
c
Esc
>
to enter Mouse mode.
m
is one,
two,
or three keys, as follows:
(1)
One key: any choice of
< A >
through
< Z > , <
F1>
through
<
F10
>
,
<
0
>
through < 9
>
,
or
<
Tab
> , <
Esc
>
,
or
< ? >
;
(2)
Two or three keys: it can
be
a combination of the < Ctrl> and/or
<
Alt
>
key(s) plus any choice of
< A >
through
< Z >
,
<
F1>
through
cF10>,
<O>
through <9>,or
<Tab>,
<Esc>,or
<?>.
4-4
CHAPTER
4:
THE
POP
UP
CONTROL PANEL
Note that your entry must be spelled out. For example, entering
/MK
=
F8
assigns the function key
<
F8
>
for Mode Select. Or entering
NK
=
Ctrl
T
specifies that the
<
Ctrl
>
and
< T >
keys must be pressed at the same time.
ISK
=
s
Instrument Select Key switch:
if
you have other ADC-16 boards installed in your computer, this switch enables you to toggle between Pop-up Panels of each instrument for the HELP function or for Mode selection of Keyboard input. The default Instrument Select key is
<
Alt
>
+
<
Tab
>
.
s
is one, two, or three keys, as follows:
(1)
One key: any choice of < A > through
< Z >
, < F1>
through
<
F10
>
,
< 0 >
through
< 9 >
,
or
<
Tab
>
,
<
Esc
>
,
or
< ? >
;
(2)
Two
or three keys:
it
can be a combination of the
<
Ckl>
and/or
<
Alt
>
key(s) plus any choice of < A > through
< Z > , <
F1>
through
<
F10
>
,
<
0
>
through
< 9 >
,
or
<
Tab
>
,
<
Esc
>
,
or
< ? >
.
Note that your entry must be spelled out. For example, entering
/SK
=
F3
assigns the function key
<
F3
>
as the Mode Select key. Or entering
/SK
=
Ctrl
S
specifies that the
<
Ctrl>
and
< S >
keys must be pressed
at
the
same time.
IU
Unload switch: when
VI.EXE
is already loaded and you wish to unload
it
from memory, you use only this switch in your instruction. For example, using the example path given above your unload instruction will be
C:\ADC16\VI
/U
NOTE that before you can unload VI.EXE, you must first unload PADC16.EXE.
An example instruction for
VI.EXE
is
C:\VI.EXE
/HK
=
Alt
X
/MK
=
Alt
Y
/SK
=
Alt
2
You
would enter this instruction at the DOS command line or into the AUTOEXEC.BAT file. This
instruction specifies the following:
VI.EXE
is in the root directory of the C Drive Color monitor Helpkeysare <Alt>
+
<X>
Mode
Select
keys
are < Alt
> + < Y >
Instrument Select keys are < Alt
> + < Z >
.
When this instruction for loading VI.EXE is executed, the computer will respond with the following display:
4-5
ADC-16 USER GUIDE
******
V1.m
Rev
3.04
o
HELP
KEY
is
ALT
X
o
INSTRUMENT
SELECT
KEY
is
ALT
2
o
MODE SELECT
KEY
is
ALT Y
4.6 PADCI 6.EXE: LOADING & UNLOADING
Before you load PADC16.EXE, you must load
VLEXE.
Syntax for loading/unloading PADC16.EXE is
as follows:
NOTE: Refer to Section
4.4
for syntax conventions.
path
PADC16.exe
/aA
=
b
/F
=
cfgfile
/PK
=
p
/NAME
=
devname /Help
/u
The elements of this model are explained as follows (note that if you do not use the switch options,
their default values remain in effect):
path
DOS path to PADC16.EXE. Example: C:\ADC16\
/BA
=
b
Base Address: The Base Address setting for the board being loaded (refer to base-address selection, in Chapter
2).
The default Base Address is &H300
(768
decimal).
b
is
the Base Address value. Either hex (range = &H200-&H3FO) or decimal values are acceptable; however, if they are given in hex they must be preceded by
an
ampersand
(&)
and an H (for example,
&H300).
Make certain the Base
Address you enter has
not
been already assigned to another device.
/F
=
cfgfile
Default Override: allows you
to
change any or all of the default
parameters discussed in the configuration section (Section
2.2)
of Chapter
2.
cfgfile
the name of a configuration file created with the ADC16CFG.EXE
utility discussed in Chapter
2.
The example file used for discussion in Chapter
2
is
ADCZ6.CFG.
/PK
=
p
Pop Up Control Panel hot key switch: when the number of installed boards is greater than one, each instrument should have its own Pop-up key assignment. The default Pop Up Control Panel hot key is
<
Alt
>
c
F5
>
.
p
is one, two, or three keys, as follows:
(1)
One key: any choice of < A > through
< Z > , <
F1> through
<
F10
>
,
< 0 >
through
< 9 >
,
or
c
Tab > ,
<
Esc
>
,
or
<
?
> . Note that in working
with
a
single key, the key you choose will be unusable for any other
function while CALL.EXE
is
loaded; you might therefore want to confine
your single-key choice to one of the function keys
(
<
F1> through < F10
>
).
4-6
CHAPTER
4:
THE
POP
UP CONTROL PANEL
/NAME
=
n
/Help
IU
(2)
Two or three keys:
it
can
be
a combination of the
<
Ctrl>
and/or
<
Alt > key(s) plus any choice of < A > through
<
Z
> , <
F1>
through
<
F10
>
,
< 0 >
through
< 9 >
,
or < Tab
> , <
Esc
>
,
or
<
?
>
.
Note that your entry must
be
spelled out. For example, entering
/PK
=
F3
assigns the function key
<
F3
>
for Mode Select. Or entering
/PK
=
Ctrl
P
specifies that the < Ctrl> and < P > keys must be pressed at the same time.
Use when the number of installed boards is greater than one and you wish to display the Pop Up Control Panel for any two of the boards simultaneously.
You
must enter
an
PADC16,EXE instruction
for
both boards--to give each
board unique hot
keys,
Base Address, and name.
n
is the name you enter for one board;
it
must be
1-8
characters. Any of the
following characters are acceptable:
<
A
>
through
<
Z
>
,
< 0 >
through
<9>,
<$>,
<&>,
<#>,
<@>,
<!>,
<%>,
<(>,
<I>,
<->,
<{>,
c
1
>
,
c
- > .
Note that
/,
\,
and * are illegal.
For example,
NAME=ADC16
Use this switch to list all command-line options for the ADC16.EXE driver. When you use this switch, you will need no other switches, because the driver is not installed.
Unload switch: when
you
wish to unload PADCl6.EXE from memory, use only this switch in your instruction. For example, using the path given above your unload instruction will
be
NOTE that you must unload PADC16.EXE before VI.EXE.
An
example instruction for PADC16.EXE
is
as follows:
C:
\ADC16\PADC16
You
would enter this instruction at the DOS command line or into the AUTOEXEC.BAT file. This
instruction specifies the following:
PADC16.EXE is in the ADC16 directory of the C Drive With no switches, the software uses the factory-preset parameters.
When this instruction for loading PADC16.EXE is executed, the compliter responds with the following display.
4-7
ADC-16
USER
GUIDE
******
PADC16.EXE
popup
Driver Rev
1.00
o
popup
Hot
Key
is
ALT
F6
o
Factory
Configuration
assumed
Number
Of
Bytes
Used
By Device
:
57968
At
Memory
Segment
[llB3]
4.7
LOADING
ANSLSYS
To
obtain optimum computer performance while working with the
VI.EXE
and
PADC16.EXE
files,
your system may require access to the
DOS
ANSI.SYS
file.
ANSI.SYS
is generally included with the
files in your computer's DOS software.
To
activate
ANSI.SYS,
you must modify your computer's
CONFIG.SYS
file to include an
ANSI.SYS
loading instruction.
Your
instruction must use the syntax of
the following model:
DEVICE
=
path
ANSI.SYS
For example, if
ANSI.SYS
is in a directory called
DOS
on the D Drive, your instruction would be
DEVICE=D:\DOS\ANSI.SYS
Remember that when you alter a
CONFIGSYS
file, you must re-boot before the new changes can take
effect.
4-8
CHAPTER
5
POP UP CONTROL PANEL OPERATION
5.1
PRELIMINARY REQUIREMENTS
Before you can use the Pop Up Control Panel, your ADC-16 board must be properly installed and your
VI.EXE
and PADC16.EXE drivers properly loaded. For board-installation instructions, refer to
Chapter
2.
For driver-loading instructions, refer to Chapter
4.
5.2
GETTING STARTED
To
Get
Up &
Running Quickly
NOTE:
This
procedure
is
valid only when ADC-16 factory configuration is in effect for both
hardware and software and when
you
are logged to the directory containing the
Distribution Software.
1.
With the board installed,
type
SHOW
2.
Click your mouse on
ADSTART,
located at the
top
of the Panel.
You
are now acquiring samples
from channels at
16
Hz.
The data from this first channel scan should be showing on the Panel.
3.
Connect known voltages to Analog Input channels and repeat Step
2.
to put the Analog Panel
Jt
the top
of
your display.
To
Get
Up
&
Running
Via
Hot
Keys
1.
With the board installed and drivers loaded, use the hot keys to access the Pop Up Control Panel. The default hot keys are
c
Alt
>
c
F6
> ; press these keys simultaneously to put the
Analog Panel at the top of your display.
2.
Click your mouse on
ADSTART,
located at the top right of the Panel.
You
are now acquiring
samples from channels at 16
Hz.
The data from this first channel scan should be showing on the
Panel.
3.
Connect known voltages to Analog Input channels and repeat Step
2.
5.3
IMPORTANT HOT KEY COMBINATIONS
Familiarity with the hot-key combinations can speed up operation. The following hot keys are the default combinations; you may change any or all of them to keys of your choice.
To
change any of
these keys, refer to the switch options in the driver-loading instructions of Sections
4.4
and
4.5.
5-1
ADC-16
USER
GUIDE
c
Alt
>
c
F6
>Pop Upmown Keys. Use these keys to show and hide the Pop Up Control Panel panels.
c
Alt
>
c H >
Help Keys. Use these keys to show the Help Panel whenever a Pop Up Control Panel Panel is showing.
c
Alt
>
c
Tab >Next Pop Up Keys. Use these keys to move
from
Pop Up to Pop
Up when panels for multiple boards are showing. Keyboard Mode Entry Keys. Use these keys to change to the Keyboard Entry
Mode. Use the
c
Esc
>
key to exit this mode.
c
Alt
>
c M >
5.4
THE CONTROL PANEL
The Control Panel of the Pop Up Control Panel appears as follows:
Control Panel Menu
This menu appears along the top of the Panel and contains three options, as follows:
This
option toggles between the keyboard and mouse control of the Pop Up Control
Panel.
This
option starts an
A/D
conversion takes you to the Digital Panel. However,
before starting a conversion, make any necessary changes to the Setup controls. This option stops an A/D conversion.
Keyboard
ADStart
ADStop
Setup Controls
These controls set up parameters for the A/D conversion. The Setup Menu appears as
follows:
AD
Type sets the
A/D
conversion mode. Choices are
Synchronous
and Interrupt.
5-2
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