Advantech PCI-1721 User manual

PCI-1721
12-bit, 4-channel
Advanced Analog
Output Card

Copyright
This documentation and the software included with this product are
copyrighted 2001 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 infringements 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 trade-
marks of International Business Machines Corporation. MS-DOS, Win-
dows, Microsoft Visual C++ and Visual BASIC are trademarks of Microsoft
Corporation. Intel and Pentium are trademarks of Intel Corporation. Delphi
and C++ Builder are trademarks of Inprise Corporation.
CE notification
The PCI-1721, developed by ADVANTECH CO., LTD., has passed the CE
test for environmental specifications when shielded cables are used for
external wiring. We recommend the use of shielded cables. This kind of
cable is available from Advantech. Please contact your local supplier for
ordering information.
On-line Technical Support
For technical support and service, please visit our support website at:
http:\\www.advantech.com/support
Note:
✎ Concerning the environment protection, we'd like to reduce the paper
using for the user's manual. Starting the page of Appendix C, please
find the PDF file of the CD-ROM.
Part No. 2003172101 2nd Edition
Printed in Taiwan October 2001

Contents
1.Introduction ............................................................................ 1
1.1 Features ........................................................................................ 1
1.2 Applications ................................................................................. 4
1.3 Installation Guide.......................................................................... 4
1.4 SoftwareOverview........................................................................ 6
1.5 DLLDriverProgrammingRoadmap .............................................. 7
1.6 Accessories .................................................................................. 9
2.Installation ........................................................................... 10
2.1 Unpacking .................................................................................. 10
2.2 Switch and Jumper Settings........................................................ 12
2.3 I/O Connector ............................................................................. 13
2.4 Driver Installation ....................................................................... 15
2.5 Hardware Installation.................................................................. 16
2.6 Device Setup & Configuration.................................................... 19
3.SignalConnections .............................................................. 23
3.1 Overview..................................................................................... 23
3.2 Analog Output Connections ...................................................... 23
3.3 Trigger Source Connections ....................................................... 24
3.4 Field Wiring Considerations ....................................................... 25
AppendixA.Specifications...................................................... 26
AppendixB.BlockDiagram ................................................... 28
AppendixC.RegisterStructureandFormat.......................... 29
C.1 Overview..................................................................................... 29
C.2 I/O Port Address Map ................................................................ 29
C.3 D/AChannel0/1/2/3Data-BASE+0/2/4/6H............................... 33
C.4 BoardID-BASE+10H ................................................................ 33
C.5 D/A Control -BASE+12H ........................................................... 34
C.6 Write Calibration Result toEEPROM-BASE+16H..................... 35
C.7 All D/A channels Synchronized Setting - BASE+22H ................ 36
C.8 Synchronization strobe - BASE+24H.......................................... 36
C.9 Calibration Setting -BASE+26H ................................................. 37

C.10 CalibrationStatus-BASE+28H .................................................. 38
C.11 I/O Setting Command and Status - BASE+2AH ......................... 39
C.12 ClearFIFOstrobe-BASE+2CH .................................................. 40
C.13 ClearFIFOstrobe-BASE+2EH .................................................. 40
C.14 82C54CounterChip -BASE+30/32/34/36H................................. 41
C.15 DIOWrite/Read-BASE+3EH ...................................................... 42
C.16 DMAFIFODataBuffer- BASE+40/42H..................................... 42
AppendixD.Calibration .......................................................... 43
D.1 VR Assignment........................................................................... 44
D.2 D/ACalibration........................................................................... 44
D.3 CalibrationUtility........................................................................ 46

Chapter 1
– 1 – PCI-1721 User’s Manual
Advantech Co., Ltd.
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Chapter 1
1. Introduction
Thank you for buying the Advantech PCI-1721. The PCI-1721 is an
advanced high-speed analog output card for PCI bus, and each of
analog output channels is equipped with a 12-bit, double-buffered
DAC.
It features many powerful and unique functions, like waveform output
function with 10 MHz maximum update rate, auto-calibration function
and Board ID.
The PCI-1721 is an ideal solution for industrial applications where
high-speed continuous analog output or even real-time waveform
output functions are required.
The following sections of this chapter will provide further information
about features of the multifunction cards, a quick start for installation,
together with some brief information on software and accessories for
thePCI-1721card.
1.1 Features
q10MHzmaximumdigitalupdaterate
qPCI-bus mastering for data transfer
qAuto calibration function
q4 analog output channels with 1K FIFO
qA 12-bit DAC is equipped for each of analog output channels
qReal-time waveform output function with internal/external pacer
qSynchronized output function
qFlexible output types and output range settings
qKeeping the output settings and values after system reset
q16-ch DIO and one 10MHz 16-bit resolution counter
qBoardID
TheAdvantechPCI-1721offersthefollowingmainfeatures:

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PCI-Bus Mastering Data Transfer
The PCI-1721 supports PCI-Bus mastering DMA for high-speed data
transfer and gap-free analog output. By setting aside a block of
memory in the PC, the PCI-1721 performs bus-mastering data transfers
without CPU intervention, setting the CPU free to perform other more
urgent tasks such as data analysis and graphic manipulation. The
function allows users to run all I/O functions simultaneously at full
speed without losing data.
Auto-calibration Function
The PCI-1721 provides an auto-calibration function by using a
calibrationutility. The built-in calibration circuitry of the PCI-1721
corrects gain and offset errors in analog output channels thereby
eliminating the need for external equipment and user adjustments.
Waveform Analog Output
The PCI-1721 provides four analog output channels. Both of them can
perform continuous waveform output. The analog output can be up to
10MS/s for each analog output channel. Or you can load a cyclic
waveform into an on-board FIFO, which will continuously output the
cyclic waveform. The on-board FIFO of the PCI-1721 can store 2 to
1024samples of the waveform.
Keeping the Output Settings and Values after system reset
Users can independently set the four outputs to different ranges:
0~+5V,0~+10V,±5V,±10V,0~20mAor4~20mA,and alltherangesare
software selectable. When the system is hot reset (power not shut
down), the PCI-1721 can either retain the last analog output settings
and values, or return to its default configuration, depending on jumper
setting. This practical function eliminates danger caused by mis-
operation during unexpected system reset.
On-board FIFO Memory
The PCI-1721 provides an on-board FIFO (First In First Out) memory
buffer, storing up to 1K samples for D/A conversion.

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Board ID
The PCI-1721 has a built-in DIP Switch that helps define each card’s ID
when multiple PCI-1721 cards have been installed on the same PC
chassis. The board ID setting function is very useful when users build
their system with multiple PCI-1721 cards. With correct Board ID
settings, you can easily identify and access each card during hardware
configuration and software programming.
On Board Programmable Timer/Counter
PCI-1721 provides a programmable timer counter for generating pacer
trigger for the D/A conversion. The timer/counter chip is 82C54, which
includes three 16-bit counters of 10 MHz clock. One counter is used as
an event counter for counting events coming from the input channel.
The other two are cascaded together to make a 32-bit timer for pacer
trigger time base.
Note:
✎For detailed specifications of the PCI-1721, please refer to Appendix A,
Specifications.

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1.2 Applications
Process control
Programmable voltage source
Programmable current sink
Servo control
Multiple loop PID control
Simulate function generator
1.3 Installation Guide
Before you install your PCI-1721 card, please make sure you have the
following necessary components:
PCI-1721 DA&C card
PCI-1721 User’s Manual
Driver software Advantech DLL drivers
(included in the companion CD-ROM)
Wiring cable PCL-10168 (optional)
Wiring board ADAM-3968 (optional)
Computer Personal computer or workstation with a
PCI-bus slot (running Windows 95/98/NT/
2000)
Some other optional components are also available for enhanced
operation:
Application software ActiveDAQ, GeniDAQ or other third-party
software packages (the waveform output
function of Analog Output is not included)
After you get the necessary components and maybe some of the
accessories for enhanced operation of your Multifunction card, you
can then begin the Installation procedures. Figure 1-1 on the next page
provides a concise flow chart to give users a broad picture of the
software and hardware installation procedures:

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Advantech Co., Ltd.
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Fig. 1-1 Installation Flow Chart

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1.4 Software Overview
Advantech offers a rich set of DLL drivers, third-party driver support
and application software to help fully exploit the functions of your PCI-
1721card:
lDLLdriver(on the companion CD-ROM)
lLabVIEWdriver*
lAdvantech ActiveDAQ*
lAdvantech GeniDAQ*
Note:
✎The waveform output function of Analog Output is not included.
Programming choices for DA&C cards: You may use Advantech
application software such as Advantech DLL driver. On the other
hand, advanced users are allowed another option for register-level
programming, although not recommended due to its laborious and
time-consuming nature.
DLL Driver
The Advantech DLL Drivers software is included on the companion
CD-ROM at no extra charge. It also comes with all the Advantech
DA&C cards. Advantech’s DLL driver features a complete I/O function
library to help boost your application performance. The Advantech
DLLdriverforWindows 95/98/NT/2000 works seamlessly with
development tools such as Visual C++, Visual Basic, Inprise C++
Builder and Inprise Delphi.
Register-level Programming
Register-levelprogramming is reserved forexperienced programmers
who find it necessary to write codes directly at the level of device
registers. Since register-level programming requires much effort and
time, we recommend that you use the Advantech DLL drivers instead.
However, if register-level programming is indispensable, you should
refer to the relevant information in Appendix C, Register Structure and
Format, or to the example codes included on the companion CD-ROM.