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.
www.advantech.com
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:

Chapter 1
– 2 –PCI-1721 User’s Manual Advantech Co., Ltd.
www.advantech.com
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.

Chapter 1
– 3 – PCI-1721 User’s Manual
Advantech Co., Ltd.
www.advantech.com
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.

Chapter 1
– 4 –PCI-1721 User’s Manual Advantech Co., Ltd.
www.advantech.com
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:

Chapter 1
– 5 – PCI-1721 User’s Manual
Advantech Co., Ltd.
www.advantech.com
Fig. 1-1 Installation Flow Chart

Chapter 1
– 6 –PCI-1721 User’s Manual Advantech Co., Ltd.
www.advantech.com
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.

Chapter 1
– 7 – PCI-1721 User’s Manual
Advantech Co., Ltd.
www.advantech.com
1.5 DLL Driver Programming Roadmap
This section will provide you a roadmap to demonstrate how to build
an application from scratch using Advantech DLL driver with your
favorite development tools such as Visual C++, Visual Basic, Delphi
and C++ Builder. The step-by-step instructions on how to build your
own applications using each development tool will be given in the DLL
Drivers Manual. Moreover, a rich set of example source codes are also
given for your reference.
Programming Tools
Programmers can develop application programs with their favorite
development tools:
qVisualC++
qVisual Basic
qDelphi
qC++Builder
For instructions on how to begin programming works in each develop-
ment tool, Advantech offers a Tutorial Chapter in the DLL Drivers
Manual for your reference. Please refer to the corresponding sections
in this chapter on the DLL Drivers Manual to begin your programming
efforts. You can also take a look at the example source codes provided
for each programming tool, since they can get you very well-oriented.
The DLL Drivers Manual can be found on the companion CD-ROM.
Or if you have already installed the DLL Drivers on your system, The
DLL Drivers Manual can be readily accessed through the Start
button:
Start/Programs/Advantech Driver for 95 and 98 (or for NT/2000)/
Driver Manual
The example source codes could be found under the corresponding
installation folder such as the default installation path:
\Program Files\Advantech\ADSAPI\Examples
For information about using other function groups or other develop-
ment tools, please refer to the Creating Windows 95/NT/2000 Appli-
cation with DLL Driver chapter and the Function Overview chapter
on the DLL Drivers Manual.

Chapter 1
– 8 –PCI-1721 User’s Manual Advantech Co., Ltd.
www.advantech.com
Programming with DLL Driver Function Library
Advanech DLL driver offers a rich function library to be utilized in
various application programs. This function library consists of
numerous APIs that support many development tools, such as Visual
C++,VisualBasic,DelphiandC++Builder.
According to their specific functions or services, those APIs can be
categorized into several function groups:
qAnalogOutputFunctionGroup
qDigitalInput/OutputFunctionGroup
qCounterFunctionGroup
qPortFunctionGroup(directI/O)
qEventFunctionGroup
For the usage and parameters of each function, please refer to the
Function Overview chapter in the DLL Drivers Manual.
Troubleshooting DLL Driver Error
Driver functions will return a status code when they are called to
perform a certain task for the application. When a function returns a
code that is not zero, it means the function has failed to perform its
designated function. To troubleshoot the DLL driver error, you can
pass the error code to DRV_GetErrorMessage function to return the
error message. Or you can refer to the DLL Driver Error Codes
Appendix in the DLL Drivers Manaul for a detailed listing of the Error
Code, Error ID and the Error Message.

Chapter 1
– 9 – PCI-1721 User’s Manual
Advantech Co., Ltd.
www.advantech.com
1.6 Accessories
Advantech offers a complete set of accessory products to support the
PCI-1721 card. These accessories include:
Wiring Cable
PCL-10168 The PCL-10168 shielded cable is specially designed
for PCI-1721 cards to provide high resistance to
noise. To achieve a better signal quality, the signal
wires are twisted in such a way as to form a “twisted-
pair cable”, reducing cross-talk and noise from other
signal sources. Furthermore, its analog and digital
lines are separately sheathed and shielded to neutral-
ize EMI/EMC problems.
Wiring Boards
ADAM-3968 The ADAM-3968 is a 68-pin SCSI wiring terminal
module for DIN-rail mounting. This terminal module
can be readily connected to the Advantech PC-Lab
cards and allow easy yet reliable access to individual
pin connections for the PCI-1721 card.

Chapter 2
– 10 –PCI-1721 User’s Manual Advantech Co., Ltd.
www.advantech.com
2. Installation
This chapter gives users a package item checklist, proper instructions
about unpacking and step-by-step procedures for both driver and card
installation.
2.1 Unpacking
After receiving your PCI-1721 package, please inspect its contents
first. The package should contain the following items:
þPCI-1721card
þCompanionCD-ROM(DLLdriverincluded)
þUser’s Manual
The PCI-1721 card harbors certain electronic components vulnerable to
electrostatic discharge (ESD). ESD could easily damage the integrated
circuits and certain components if preventive measures are not
carefully paid attention to.
Before removing the card from the antistatic plastic bag, you should
take following precautions to ward off possible ESD damage:
lTouch the metal part of your computer chassis with your hand to
discharge static electricity accumulated on your body. Or one can
also use a grounding strap.
lTouch the anti-static bag to a metal part of your computer chassis
before opening the bag.
lTake hold of the card only by the metal bracket when removing it
out of the bag.
After taking out the card, first you should:
lInspect the card for any possible signs of external damage (loose or
damaged components, etc.). If the card is visibly damaged, please
notify our service department or our local sales representative
immediately. Avoid installing a damaged card into your system.
Chapter 2

Chapter 2
– 11 – PCI-1721 User’s Manual
Advantech Co., Ltd.
www.advantech.com
Also pay extra caution to the following aspects to ensure proper
installation:
~Avoid physical contact with materials that could hold static
electricity such as plastic, vinyl and Styrofoam.
~Whenever you handle the card, grasp it only by its edges. DO NOT
TOUCH the exposed metal pins of the connector or the electronic
components.
Note:
✎Keep the anti-static bag for future use. You might need the original bag
to store the card if you have to remove the card from PC or transport it
elsewhere.

Chapter 2
– 12 –PCI-1721 User’s Manual Advantech Co., Ltd.
www.advantech.com
2.2 Switch and Jumper Settings
The PCI-1721 card has one function switch and five jumper settings.
Fig. 2-1 Card connector, jumper and switch locations
Table 2-1: Summary of jumper settings
Setting the time to reset the analog outputs
Some users will want the capability of clearing each analog output when
the system (or PC) issues a reset signal on the PCI bus. Some users will
want to clear their analog output only as part of system power-on.
The PCI-1721 satisfies both these needs by providing jumper JP1.
Depending on the application, this capability may allow analog
outputs to be “ZERO” without requiring a complete shutdown of
processes controlled by the card.
Complete loss of power to the chip clears the chip memory. Thus, no
matter how JP1 is set, if the power to the PCI-1721 is disconnected, the
analog output initial power-on state will be “ZERO”.
Names of Jumpers Function description
JP1 Keep last status after hot reset.
Default configuration.
JP6~JP9 4~20 mA 0~20 mA

Chapter 2
– 13 – PCI-1721 User’s Manual
Advantech Co., Ltd.
www.advantech.com
2.3 I/O Connector
Pin Assignment
Figure 2-2 shows the pin assignments for the 68-pin I/O connector on
thePCI-1721.
Fig. 2-2 I/O connector pin assignments for the PCI-1721
REF_5V 68 34 REF_10V
VOUT0 67 33 VOUT1
AGND 66 32 AGND
IOUT0 65 31 IOUT1
REF_V0 64 30 REF_V1
AGND 63 29 AGND
VOUT2 62 28 VOUT3
AGND 61 27 AGND
IOUT2 60 26 IOUT3
REF_V2 59 25 REF_V3
AGND 58 24 AGND
NC 57 23 NC
AGND 56 22 AGND
NC 55 21 NC
NC 54 20 NC
AGND 53 19 AGND
NC 52 18 NC
AGND 51 17 AGND
NC 50 16 NC
NC 49 15 NC
AGND 48 14 AGND
DIO0 47 13 DIO1
DIO2 46 12 DIO3
DIO4 45 11 DIO5
DIO6 44 10 DIO7
DIO8 43 9 DIO9
DIO10 42 8 DIO11
DIO12 41 7 DIO13
DIO14 40 6 DIO15
DGND 39 5 DGND
CNT0_CLK 38 4 FIFO_OUT
CNT0_OUT 37 3 EXT_GATE
CNT0_GATE 36 2 EXT_CLK
+12V 35 1 +5V

Chapter 2
– 14 –PCI-1721 User’s Manual Advantech Co., Ltd.
www.advantech.com
I/O Connector Signal Description
Table 2-2 I/O Connector Signal Description
Fig. 2-3 FIFO block diagram of PCI-1721
Signal Name Reference Direction Description
Vout<0..3> AGN D Output Voltage Output, Channe ls 0 through 3.
Iout<0..3> AGN D Output Curre nt Output, Channels 0 through 3.
REF_V<0..3> AGND Input Exte rnal Refe rence , Channe l 0 through 3.
AGND - - Analog Ground. The two ground references (AGND and DGND) are
connected together on the PCI-1721 card.
REF_10V AGND Output +10 VDC Reference.
REF_5V AGND Output +5 VDC Reference.
DI0<0..15> DGND - Digital Input / Output signals . These pins are digital input / Output channel
0 to 15.
DGND - - Digital Ground. The two ground references (AGND and DGND) are
connected together on the PCI-1721 card.
CNT0_CLK DGND Input Counte r 0 Clock Input. The clock input of counter 0 can be either external
(up to 10 MHz) or internal (1 MHz), as set by software.
CNT0_OUT DGND Output Counter 0 Output.
CNT0_GATE DGN D Input Counter 0 Gate Control.
FIFO_OUT DGND Output
FIFO Output. This pin pulses once for each FIFO clock when turned on. If
D/A conversion is in the FIFO trigger mode, users can use this signal as a
synchronous signal for other applications. A low- to-high edge triggers D/A
conversion to start.
EXT_GATE DGN D Input
D/A External Trigger Gate. When EXT_GATE is connected to +5 V, it
will enable the external trigger signal to input. When EXT_GATE is connected
to DGND, it will disable the external trigger signal to input.
EXT_CLK DGND Input D/A External Trigger Clock. This pin is external trigger clock input for the
D/A conversion. A low-to- high edge triggers D/A conversion to start.
+12V DGND Output +12 VDC Source (from PCI bus directly with FUSE protection).
+5V DGND Output +5 VDC Source (from PCI bus directly with FUSE protection).
Note: +12 V and +5 V can't be used as the reference voltage of Iout.
0
A0 A1
CNT2
G2
82C54
CNT1
82C54
G1
CLK_10M FIFO_C0 FIFO_C1
1
2
3
MUX
5 M
10 M
+5V
EXT_CLK
EXT_GATE
RD
FIFO
FIFO_CLK
Waveform
Mode
WRFIFO_WR

Chapter 2
– 15 – PCI-1721 User’s Manual
Advantech Co., Ltd.
www.advantech.com
2.4 Driver Installation
WerecommendyoutoinstallthedriverbeforeyouinstallthePCI-1721
cardinto your system, since thiswill guaranteea smoothinstallation
process.
The32-bit DLL driver Setupprogram for the PCI-1721card is included
on the companion CD-ROM that is shipped with your DA&C card
package. Please follow the steps below to install the driver software:
Step1: Insert the companion CD-ROM into your CD-ROM drive.
Step2: The Setup program will be launched automatically if you have
the autoplay function enabled on your system. When the
Setup Program is launched, you’ll see the following Setup
Screen.
Note:
✎If the autoplay function is not enabled on your computer, use
Windows Explorer or Windows Runcommand to execute SETUP.EXE
on the companion CD-ROM.
Fig. 2-4 The Setup Screen of Advantech Automation Software

Chapter 2
– 16 –PCI-1721 User’s Manual Advantech Co., Ltd.
www.advantech.com
Step3: Select the DLL Drivers option.
Step4: Select the Windows 95/98 or Windows NT or Windows 2000
option according to your operating system. Just follow the
installation instructions step by step to complete your DLL
driver setup.
Fig. 2-5 Different options for Driver Setup
For further information on driver-related issues, an online version of
DLL Drivers Manual is available by accessing the following path:
Start/Programs/Advantech Driver for 95 and 98 (or for NT/2000)/
Driver Manual
2.5 Hardware Installation
Note:
✎Make sure you have installed the driver first before you install the card
(please refer to 2.4 Driver Installation)
After the DLL driver installation is completed, you can now go on to
install the PCI-1721 card in any PCI slot on your computer. But it is
suggested that you should refer to the computer user manual or related
documentation if you have any doubt. Please follow the steps below to
install the card on your system.