Advantech PCL-818L Bedienungsanleitung
PCL-818L
High-performance
DAS card with
programmable gain
Copyright
This documentation and the software routines contained in the PCL-
818L software disk are copyrighted 1994 by Advantech Co., Ltd. All
rights are reserved. Advantech Co., Ltd. reserves the right to make
improvements in the products described in this manual at any time
without notice.
No part of this manual 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 infringe-
ments of the rights of third parties which may result from its use.
Acknowledgments
PC-LabCard is a trademark of Advantech Co., Ltd. IBM and PC are
trademarks of International Business Machines Corporation. MS-
DOS, Microsoft C and QuickBASIC are trademarks of Microsoft
Corporation. BASIC is a trademark of Dartmouth College. Intel is a
trademark of Intel Corporation. TURBO C is a trademark of Borland
International.
Part No. 2003818082 4th Edition
Printed in Taiwan October 1995
Contents
Chapter 1 General information ................................ 1
Introduction........................................................................ 2
Features.............................................................................. 2
Specifications..................................................................... 3
Daughterboards .................................................................. 5
Software support ................................................................ 7
Chapter 2 Installation ............................................... 9
Initial inspection .............................................................. 10
Switch and jumper settings .............................................. 10
Connector pin assignments .............................................. 16
Hardware installation ....................................................... 19
Software installation ........................................................ 20
Chapter 3 Signal connections ................................. 21
Analog input connections ................................................ 22
Expanding analog inputs.................................................. 24
Analog output connection................................................ 25
Digital signal connections................................................ 25
Chapter 4 Register structure and format ............. 27
A/D data registers – BASE+0/1....................................... 29
Software A/D trigger – BASE+0 ..................................... 29
A/D range control – BASE+1.......................................... 30
MUX scan register – BASE+2......................................... 30
Digital I/O registers – BASE+3/11 .................................. 32
D/A output registers – BASE+4/5 ................................... 32
A/D status register – BASE+8 ......................................... 33
Control register – BASE+9.............................................. 34
Timer/counter enable register – BASE+10...................... 36
Programmable timer/counter registers – B+12/13/14/15. 36
Chapter 5 A/D conversion ....................................... 37
A/D Data format and status register ................................ 38
Input range selection ........................................................ 39
MUX setting .................................................................... 39
Trigger mode.................................................................... 40
A/D data transfer.............................................................. 41
How to make an A/D conversion ..................................... 42
Chapter 6 D/A conversion ....................................... 43
General information ......................................................... 44
D/A applications .............................................................. 45
Chapter 7 Digital input and output ....................... 47
Chapter 8 Programmable timer/counter ............... 49
The Intel 8254.................................................................. 50
Counter read/write and control registers.......................... 50
Counter operating modes ................................................. 53
Counter operations........................................................... 55
Counter applications ........................................................ 56
Chapter 9 Direct memory access operation .......... 57
Using DMA transfer with the PCL-818L ........................ 59
Appendix A Block Diagram ...................................... 61
Appendix B Connector, switch and VR Locations . 63
Appendix C PC I/O port address map ..................... 65
Appendix D Calibration ........................................... 67
VR assignment................................................................. 68
A/D calibration ................................................................ 69
D/A calibration ................................................................ 69
Chapter 1 General information 1
1
General information
CHAPTER
2PCL-818L User's Manual
Introduction
The PCL-818L is a high performance multi-function data acquisition
card for IBM PC/XT/AT or compatible computers. It offers the five
most desired measurement and control functions: 12-bit A/D conver-
sion, D/A conversion, digital input, digital output and timer/counter.
Automatic channel scanning circuitry and on-board SRAM let you
perform multiple-channel A/D conversion with DMA and individual
channel gains.
The PCL-818L is an advanced new version of our popular PCL-818.
A custom 160-pin ASIC chip integrates the functions of the full-size
PCL-818. This chip gives you maximum accuracy and reliability,
along with minimum cost, size and power consumption.
The resulting half-size card is fully software compatible with the PCL-
818. This puts rich software support and a wide variety of external
signal conditioning boards at your disposal.
The PCL-818L is excellent for data acquisition, process control,
automatic testing and factory automation.
Features
• 16 single-ended or eight differential analog inputs, switch selectable
• 12-bit A/D, up to 40 KHz sampling rate with DMA transfer and
different gain for each channel.
• Software programmable gain values
• Software selectable analog input ranges (bipolar):
Two ranges, selected by jumper JP7
±10, ±5, ±2.5, ±1.25 or ±5, ±2.5, ±1.25, ±0.625
• 16 digital inputs and 16 digital outputs, TTL/DTL compatible
• One 12-bit analog output channel
• Flexible triggering options: software trigger, programmable pacer
trigger and external pulse trigger.
• Data transfer by program control, interrupt handler routine or DMA
• New-technology 160 pin 1.0 mm CMOS ASIC chip
Chapter 1 General information 3
Specifications
åAnalog Input (A/D converter)
• Channels: 16 single-ended or 8 differential, switch selectable
• Resolution: 12 bits
• Input ranges (bipolar, VDC): ±0.625, ± 1.25, ±2.5, ±5 or
±1.25, ± 2.5, ±5, ±10
All input ranges are software programmable.
• Overvoltage: Continuous ±30 V max.
• Conversion type: Successive approximation
• Conversion rate: 40 KHz max.
• Accuracy: ±(0.01% of reading), ±1 bit
• Linearity: ±1 bit
• Trigger mode: Software trigger, on-board programmable pacer
trigger or external trigger
• Ext. trigger: TTL compatible.
Load is 0.4 mA max. at 0.5 V and -0.05 mA max. at 2.7 V
• Data transfer: Program, interrupt or DMA
åAnalog output (D/A converter)
• Channels: 1 channel
• Resolution: 12 bits
• Output range: 0 to +5 (+10) V with on-board -5 (-10) V reference.
Max. ±10 V with external DC or AC reference
• Reference:
Internal: -5 V or -10 V
External DC or AC: ±10 V max.
• Conversion type: 12 bit monolithic multiplying
• Linearity: ±0.5 bit
• Output drive: ±5 mA max.
• Settling time: 5 microseconds
4PCL-818L User's Manual
åDigital input
• Channel: 16 bits
• Level: TTL compatible
• Input voltage:
Low: 0.8 V max.
High: 2.0 V min.
• Input load:
Low: 0.4 mA max. at 0.5 V
High: 0.05 mA max. at 2.7 V
åDigital Output
• Channel: 16 bits
• Level: TTL compatible
• Output voltage:
Low: Sink 8 mA at 0.5 V max.
High: Source -0.4 mA at 2.4 V min.
åProgrammable timer/counter
• Device: Intel 8254 or equivalent
• Counters: 3 channels, 16 bit.
2 channels are permanently configured as programmable pacers
1 channel is free for your applications
• Input, gate: TTL/CMOS compatible
• Time base:
Pacer channel 1:10 MHz or 1 MHz, switch selectable
Pacer channel 2:Takes input from channel 1
Pacer channel 0:Internal 100 KHz or external clock (10 MHz max).
Source selected with Timer/Counter Enable
Register (BASE+10)
• Pacer output: 0.00023 Hz (71 minutes/pulse) to 2.5 MHz
åInterrupt channel
• Level: IRQ 2 to 7, software selectable
• Enable: Via INTE bit of Control Register (BASE+9)
Chapter 1 General information 5
åDMA channel
• Level: 1 or 3, jumper selectable
• Enable: Via DMAE bit of Control Register (BASE+9)
åGeneral
• Power consumption:
+5 V: 210 mA typical, 500 mA max.
+12 V: 20 mA typical, 100 mA max.
-12 V: 20 mA typical, 40 mA max.
• I/O connector: 20 pin post headers for I/O connection. Adapter
available to convert to DB-37 connector
• Analog input/output/counter connector: DB-37
•I/O base: Requires 16 consecutive address locations. Base address
definable by the DIP switch SW1 for address line A9-A4. (Factory
setting is Hex 300)
• Operating temp: 0 to +50oC
• Storage temp: -20 to +65oC
Daughterboards
We offer a wide variety of optional daughterboards to help you get the
most from your PCL-818L. You will need the PCLD-774 Analog
Expansion Board or PCLD-8115 Wiring Terminal Board to make
connections.
åPCLD-789 Amplifier/Multiplexer board
This analog input-signal conditioning board multiplexes up to 16
differential inputs to one A/D input channel. A high grade instrumen-
tation amplifier provides switch selectable gains of 0.5, 1, 2, 10, 50,
100, 200, 1000 or user defined.
åPCLD-788 Relay Multiplexer Board
This board multiplexes up to 16 differential inputs to one analog
output channel. It offers isolated break-before-make high voltage
switching and a CJC circuit for thermocouple measurement.
6PCL-818L User's Manual
åPCLD-787 8-channel simultaneous sample and hold board
This board lets you simultaneously acquire up to eight analog inputs
with less than 30 nsec of channel-to-channel sample time uncertainty.
åPCLD-786 AC/DC power SSR and relay driver board
This board holds eight opto-isolated solid state relay modules and
provides an additional eight outputs to drive external relays.
åPCLD-785B and PCLD-885 relay output boards
These boards let you control relays through the PCL-818L's 16-bit
digital output channels. PCLD-785B provides 24 SPDT relays, while
the PCLD-885 provides 16 SPST power relays.
åPCLD-782B Isolated D/I Board
This board provides 24 opto-isolated digital input channels and a
cable to connect to the PCL-818L's digital input ports.
åPCLD-779 8-channel relay-isolated multiplexer
and amplifier board
This board lets you easily make multi-channel temperature measure-
ments. We designed it for the cost-sensitive customer who requires
precision, low-level signal measurement and isolation for industrial
applications.
åPCLD-770 with PCLD-7701 and PCLD-7702 modules
PCLD-770 accepts signals from up to eight PCLD-7701 or PCLD-
7702 signal conditioning modules and multiplexes them into a single
analog input channel. PCLD-7701 is an isolated amplifier module and
the PCLD-7702 is an amplifier with I/V source. You can cascade up to
ten PCLD-770s for a total of 80 differential input channels.
åPCLD-5B16 module carrier board
This board holds 16 5B-series input and/or output modules. We supply
5B modules for wide variety of signal input signals, including
thermocouples, strain gauges and RTDs.
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