Advantech PCL-813 User manual

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Model PCL-813Model PCL-813
Model PCL-813Model PCL-813
Model PCL-813
32-Channel Single-Ended
Isolated Analog Input Card
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Copyright Notice
This documentation and the software included with this product are
copyrighted 1994 by Advantech Co., Ltd. All rights are reserved.
Advantech Co., Ltd. reserves the right to make improvements to the
products described in this manual at any time without notice.
No part of this manual or software may be reproduced, copied,
translated or transmitted, in any form or by any means without the
prior written permission of Advantech Co., Ltd. Information provided
in this manual is intended to be accurate and reliable. However,
Advantech Co., Ltd. assumes no responsibility for its use, nor for any
infringements of rights of third parties which may result from its use.
Acknowledgments
PC-LabCard is a trademark of Advantech Co., Ltd. IBM, PC and
PC/XT/AT are trademarks of International Business Machines
Corporation. MS-DOS, MASM, QuickBASIC, Microsoft C and MS-
PASCAL are trademarks of Microsoft Corporation. Intel is a trade-
mark of Intel Corporation. Turbo C and Turbo PASCAL are trade-
marks of Borland International. MOXA is a trademark of 404
Technologies Inc.
Part No. 2003813030, 4th Edition
Printed in Taiwan, August, 1994
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Contents
CHAPTER 1 INTRODUCTION ...............................................1
Features ................................ 2
Specifications ............................ 3
General Specifications ....................... 3
CHAPTER 2 INSTALLATION ................................................ 5
Initial Inspection .......................... 6
Switch and Jumper Settings ................... 7
Connector Pin Assignment .................... 9
Plugging the PCL-813 into your PC ............. 10
CHAPTER 3 SIGNAL CONNECTION .................................... 11
Analog Input Connection .................... 12
CHAPTER 4 REGISTER STRUCTURE
AND FORMAT ................................................ 13
I/O Port Address Map ...................... 14
A/D Data Registers ........................ 16
Gain Control Register ...................... 17
Multiplexer Scan Register ................... 18
How to Initiate an A/D Conversion .............. 19
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CHAPTER 5 SOFTWARE .................................................... 21
Introduction ............................. 22
Parameter Table .......................... 22
Parameter Descriptions ..................... 27
Function List ............................ 28
Function Description ....................... 29
Language Interface ........................ 31
BASICA ............................... 31
GWBASIC (version 3.20) ................... 31
QuickBASIC 4.0 and 4.5 .................... 32
Microsoft C ............................. 32
Turbo C ............................... 33
Borland C++ ............................ 33
Microsoft PASCAL ........................ 34
Turbo PASCAL .......................... 34
APPENDIX A CALIBRATION ................................................ 3 5
VR Assignments .......................... 36
VR location ............................. 37
A/D Calibration .......................... 38
APPENDIX B PCLD-881 INDUSTRIAL
TERMINATION BOARD ................................ 39
Introduction ............................. 40
Features ............................... 40
Applications ............................ 41
Technical Diagrams ....................... 42
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Chapter 1 Introduction 11
11
1
1
INTRODUCTION
CHAPTER
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2 PCL-813 User's Manual
INTRODUCTION
The PCL-813 32 Channel Single-Ended Isolated Analog Input Card is
an easy to use and cost effective IBM PC/XT/AT compatible data-
acquisition card. The specifications and the user-friendly software
driver of this card make it a popular solution for a wide range of
industrial and laboratory applications. Such applications include:
measurement of transducer and sensor data, waveform acquisition and
measurement, process monitoring, and vibration and transient
analysis.
Features
• 32 Single-ended, isolated analog inputs
• 12-Bit resolution A/D conversion
• Programmable analog input ranges: ±5 V, ±2.5 V, ±1.25 V, ±0.625 V,
0~10 V, 0~5 V, 0~2.5 V, 0~1.25 V
• Supports software trigger
• Versatile language drivers including BASIC, PASCAL, C and C++
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Chapter 1 Introduction 33
33
3
Specifications
Analog Input (A/D Converter)
ChannelsChannels
ChannelsChannels
Channels: 32 Single-ended with isolation
ResolutionResolution
ResolutionResolution
Resolution: 12-bit, successive approximation
Input RangeInput Range
Input RangeInput Range
Input Range:
Bipolar: ±5 V, ±2.5 V, ±1.25 V, ±0.625 V, software programmable
Unipolar: 0 ~ 10 V, 0 ~ 5 V, 0 ~ 2.5 V, 0 ~ 1.25 V, software
programmable
(Bipolar or Unipolar is selected by JP100)
ConverterConverter
ConverterConverter
Converter: AD574 or equivalent, with 25 ms conversion time
Data transfer rateData transfer rate
Data transfer rateData transfer rate
Data transfer rate: 25 Kbps maximum, software control only
Isolation voltageIsolation voltage
Isolation voltageIsolation voltage
Isolation voltage: >500 VDC from input to output
AccuracyAccuracy
AccuracyAccuracy
Accuracy: 0.01% of reading ±1 LSB
NonlinearityNonlinearity
NonlinearityNonlinearity
Nonlinearity: ±1 bit maximum
AmplificationAmplification
AmplificationAmplification
Amplification: x1, x2, x4, x8, software programmable
Trigger modeTrigger mode
Trigger modeTrigger mode
Trigger mode: By software trigger
Temp. coefficientTemp. coefficient
Temp. coefficientTemp. coefficient
Temp. coefficient: ±25 ppm/OC
OvervoltageOvervoltage
OvervoltageOvervoltage
Overvoltage: Continuous ±30 V maximum
Input impedanceInput impedance
Input impedanceInput impedance
Input impedance: >10 MW
General Specifications
Power consumptionPower consumption
Power consumptionPower consumption
Power consumption: +5 V: 660 mA, typical
+12 V: 140 mA, typical
I/O connectorI/O connector
I/O connectorI/O connector
I/O connector: 37-pin D-type connector (analog input port)
Operating temp.Operating temp.
Operating temp.Operating temp.
Operating temp.: 0 to 50OC (32 to 122OF)
Storage temp.Storage temp.
Storage temp.Storage temp.
Storage temp.: -20 to 50OC (-4 to 149OF)
Board dimensionsBoard dimensions
Board dimensionsBoard dimensions
Board dimensions: 99 mm x 219 mm
WeightWeight
WeightWeight
Weight: 210 gm (7.42 oz.)
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Chapter 2 Installation 55
55
5
2
INSTALLATION
CHAPTER
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INSTALLATION
Initial Inspection
When you receive your PCL-813 you should find enclosed:
• One PCL-813 32-Channel Single-Ended Isolated Analog Input Card
• User's Manual
• Utility Diskette, which includes the card's software driver
The PCL-813 was carefully inspected both mechanically and electri-
cally before shipment. It should be free of marks and scratches and in
perfect electrical order on receipt.
When unpacking, check the unit for signs of shipping damage
(damaged box, scratches, dents, etc). If there is damage to the unit or
it fails to meet specifications, notify our service department or your
local sales representative immediately. Also, call the carrier im-
mediately and retain the shipping carton and packing material for the
inspection by the carrier. We will make arrangements to repair or
replace the unit.
Remove the PCL-813 card from its protective packaging
carefully. Keep the anti-vibration package. Whenever you are not
using the board, please store it in the package for protection.
Discharge any static electricity by touching the back of the system
unit before you handle the board. You should avoid contact with
materials that create static electricity such as plastic, vinyl, and
styrofoam. The board should be handled only by the edges to avoid
static electric discharge which could damage the integrated circuits on
the PCL-813.
Warning! Discharge your body’s static electric charge by
touching the back of the grounded chassis of the
system unit (metal) before handling the board.You
should avoid contact with materials that hold a static
charge such as plastic, vinyl and styrofoam. Handle
the board only by its edges to avoid static damage to
its integrated circuits. Avoid touching the exposed
circuit connectors.
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Chapter 2 Installation 77
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Switch and Jumper Settings
The PCL-813 has been designed with ease-of-use in mind. On-board
the card you will notice that there is only one DIP switch (SW1). This
switch is used to set the PCL-813’s base address. Unipolar or Bipolar
mode inputs is selected by jumper JP100. The following section goes
into this in more detail.
I/O Address Selection
Most peripheral devices and interface cards are controlled by your
PC’s I/O ports. These devices and cards should be placed in an
appropriate I/O space so that there will be no conflicts between them
and the PCL-813. Keep in mind that the PCL-813 uses 16 consecutive
address locations in your PC’s I/O space. The following table provides
an I/O port address map for your reference. This will assist in locating
appropriate addresses for your other peripheral devices and interface
cards. I/O port base addresses are selected from the 6-position DIP
switch SW1 on-board the PCL-813. The valid addresses are 000 to
3F0 (hexadecimal). The factory default base address setting is 220.
From time to time, you may find that you will have to use some of
these spaces for other devices. If this is the case, then you can change
the address according to the information given in the following table.
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8 PCL-813 User's Manual
CARD I/O Address (SW1)
I/O ADDRESS RANGEI/O ADDRESS RANGE
I/O ADDRESS RANGEI/O ADDRESS RANGE
I/O ADDRESS RANGE SWITCH POSITIONSWITCH POSITION
SWITCH POSITIONSWITCH POSITION
SWITCH POSITION
11
11
122
22
233
33
344
44
455
55
566
66
6
(HEXADECIMAL) A9 A8 A7 A6 A5 A4
000 - 100 llllll
100 - 10F l¡llll
------ ------
------ ------
200 - 20F ¡lllll
210 - 21F ¡llll¡
220 - 22F ¡lll¡l
------ ------
300 - 30F ¡¡llll
------ ------
3F0 - 3FF ¡¡¡¡¡¡
¡= Off l= On * = Factory default setting
NOTE:NOTE:
NOTE:NOTE:
NOTE: A4 through A9 corresponds to your PC’s address lines
Input Range Selection
If your application always uses Unipolar input types, you should
switch the JP100 to the “U” location, so the PCL-813 may accept to
0~10V, 0~5V, 0~2.5V and 0~1.25V Unipolar analog inputs.
*
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Chapter 2 Installation 99
99
9
Connector Pin Assignment
The PCL-813 is equipped with one 37-pin D-type connector located
on the card’s mounting bracket.
An illustration of this connector is given below:
2
1
4
5
6
7
8
9
10
11
12
13
15
16
14
17
18
19
20
21
322
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
AI 1
AI 3
AI 5
AI 7
AI 9
AI 11
AI 13
AI 15
AGND
AGND
AI 17
AI 19
AI 21
AI 23
AI 25
AI 27
AI 29
AI 31
AI 0
AI 2
AI 4
AI 6
AI 8
AI 10
AI 12
AI 14
AGND
AGND
AI 16
AI 18
AI 20
AI 22
AI 24
AI 26
AI 28
AI 30
AGND
Key: AI = Analog input
AGND = Analog ground
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Plugging the PCL-813 into your PC
Warning! Turn off your PC’s power supply whenever you
install or remove the PCL-813 or its cables. Static
electricity can easily damage computer equipment.
Ground yourself by touching the chassis of the
computer (metal) before you touch any boards. See
the static warning on page 6.
Before you plug the PCL-813 into your PC, make sure that the
computer’s power is turned off, and that all power cords and all
peripheral devices have been disconnected from the system.
Use the following procedure as a guideline for plugging the PCL-813
into your PC.
1. Remove the cover from the PC’s chassis, and locate a vacant
expansion slot on the passive backplane or motherboard for
installing the PCL-813.
2. Take the card and insert it into the expansion slot, pressing it
firmly into place. Use the card’s mounting bracket as a guide
between the chassis’ rear panel and backplane or motherboard.
3. Once you have inserted the card firmly into the slot, secure it to
the chassis by fastening its mounting bracket with a screw.
4. Attach the appropriate cable to connector CN1.
5. Replace the chassis cover, and reconnect all power cords and
peripheral cables.
Installation of the PCL-813 is now complete.
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Chapter 3 Signal Connection 1111
1111
11
3
Signal Connection
CHAPTER
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SIGNAL CONNECTION
Since most data acquisition applications involve voltage measurement,
it is important to make the correct signal connections in order to avoid
any damage to your system, and to ensure accurate measurements.
This chapter provides some helpful information about making the
proper signal connections for your application.
Analog Input Connection
As you already know, the PCL-813 supports 32 single-ended isolated
analog inputs. A single-ended analog input connection uses only one
signal wire connected to an analog input terminal, which is referenced
to a common ground. For example, in order to measure the voltage of
a battery, simply connect its negative side to the PCL-813’s ground
(any one of the AGND pins on connector CN1), and its positive side to
one of the card’s analog input channels.
NOTE:NOTE:
NOTE:NOTE:
NOTE:
The PCL-813 does not support differential signal source inputs.
The following diagram illustrates a single-ended, common ground,
analog input connection:
To A/D CHIP
1
2
3
Vs
+
-
AGND
Single-Ended Analog Input ConnectionSingle-Ended Analog Input Connection
Single-Ended Analog Input ConnectionSingle-Ended Analog Input Connection
Single-Ended Analog Input Connection
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Chapter 4Chapter 4
Chapter 4Chapter 4
Chapter 4 Register Structure And Format 1 3
4
Register Structure
And Format
CHAPTER
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REGISTER STRUCTURE AND FORMAT
This chapter has been written for those who wish to write their own
software driver instead of using that of the PCL-813. The PCL-813
requires 16 consecutive addresses in I/O space. The most important
issue in programming the PCL-813 is understanding the meaning of
the 16 registers addressable from the selected I/O port base address.
Here, you will find detailed information about the PCL-813’s register
formats and control procedures.
I/O Port Address Map
The following table shows you which base I/O addresses are used by
the PCL-813. Refer to this map from time to time in order to become
familiar with each of the card’s register formats and their purpose.
Sixteen consecutive registers corresponding to their I/O addresses are
used to control the PCL-813’s various functions. The following table
has been provided in this chapter as a preface which outlines these
addresses, relative to their location and control (read or write) assign-
ments.
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Chapter 4Chapter 4
Chapter 4Chapter 4
Chapter 4 Register Structure And Format 1 5
I/O Port Address Map
LOCATIONLOCATION
LOCATIONLOCATION
LOCATION READREAD
READREAD
READ WRITEWRITE
WRITEWRITE
WRITE
BASE+0 N/U N/U
BASE+1 N/U N/U
BASE+2 N/U N/U
BASE+3 N/U N/U
BASE+4 A/D low byte N/U
BASE+5 A/D high byte N/U
BASE+6 N/U N/U
BASE+7 N/U N/U
BASE+8 N/U N/U
BASE+9 N/U Gain control
BASE+10 N/U Multiplexer scan control
BASE+11 N/U N/U
BASE+12 N/U Software A/D trigger
BASE+13 N/U N/U
BASE+14 N/U N/U
BASE+15 N/U N/U
NOTENOTE
NOTENOTE
NOTE: N/U = Not used
The sections that follow provide further information about each
register’s data format according to its specific operation.
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A/D Data Registers
The PCL-813 uses the data registers located at I/O ports BASE+4 and
BASE+5 to store the converted A/D data. The low byte data is stored
at BASE+4, and the high byte data is stored at BASE+5.
BASE+4 A/D Low Byte Data (Read)
D7D7
D7D7
D7 D6D6
D6D6
D6 D5D5
D5D5
D5 D4D4
D4D4
D4 D3D3
D3D3
D3 D2D2
D2D2
D2 D1D1
D1D1
D1 D0D0
D0D0
D0
AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0
BASE+5 A/D High Byte Data (Read)
D7D7
D7D7
D7 D6D6
D6D6
D6 D5D5
D5D5
D5 D4D4
D4D4
D4 D3D3
D3D3
D3 D2D2
D2D2
D2 D1D1
D1D1
D1 D0D0
D0D0
D0
X X X DRDY AD11 AD10 AD9 AD8
Where:
AD0 through AD11: Represent the PCL-813’s A/D data bits. AD0 is
the Least Significant Bit (LSB), and AD11 is the
Most Significant Bit (MSB).
DRDY: Data Ready Bit. When A/D conversion is in
progress, this bit remains as 1. It becomes 0
when the A/D conversion is completed.
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