Advantech PCI-1720 User manual

PCI-1720
4-ch Isolated Analog Output
Card
PCI-1720U
4-ch Isolated Analog Output
Card with Universal PCI Bus
User Manual

PCI-1720 & 1720U User Manual ii
Copyright
This documentation and the software included with this product are
copyrighted 2005 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
trademarks of International Business Machines Corporation. MS-DOS
and Windows are trademarks of Microsoft Corporation. Intel and Pentium
are trademarks of Intel Corporation. All other product names or trade-
marks are properties of their respective owners.
Part No. 2003172011 2nd Edition
Printed in Taiwan May 2005

iii
Product Warranty (2 years)
Advantech warrants to you, the original purchaser, that each of its prod-
ucts will be free from defects in materials and workmanship for two years
from the date of purchase.
This warranty does not apply to any products which have been repaired or
altered by persons other than repair personnel authorized by Advantech,
or which have been subject to misuse, abuse, accident or improper instal-
lation. Advantech assumes no liability under the terms of this warranty as
a consequence of such events.
Because of Advantech’s high quality-control standards and rigorous test-
ing, most of our customers never need to use our repair service. If an
Advantech product is defective, it will be repaired or replaced at no
charge during the warranty period. For out-of-warranty repairs, you will
be billed according to the cost of replacement materials, service time and
freight. Please consult your dealer for more details.
If you think you have a defective product, follow these steps:
1. Collect all the information about the problem encountered. (For
example, CPU speed, Advantech products used, other hardware
and software used, etc.) Note anything abnormal and list any
onscreen messages you get when the problem occurs.
2. Call your dealer and describe the problem. Please have your man-
ual, product, and any helpful information readily available.
3. If your product is diagnosed as defective, obtain an RMA (return
merchandize authorization) number from your dealer. This allows
us to process your return more quickly.
4. Carefully pack the defective product, a fully-completed Repair and
Replacement Order Card and a photocopy proof of purchase date
(such as your sales receipt) in a shippable container. A product
returned without proof of the purchase date is not eligible for war-
ranty service.
5. Write the RMA number visibly on the outside of the package and
ship it prepaid to your dealer.

PCI-1720 & 1720U User Manual iv
CE Notification
PCI-1720 and PCI-1720U have passed the CE test for environmental
specifications when shielded cables are used for external wiring. We rec-
ommend the use of shielded cables. This kind of cable is available from
Advantech. Please contact your local supplier for ordering information.
Technical Support and Assistance
Step 1. Visit the Advantech web site at www.advantech.com/support
where you can find the latest information about the product.
Step 2. Contact your distributor, sales representative, or Advantech's cus-
tomer service center for technical support if you need additional
assistance. Please have the following information ready before
you call:
- Product name and serial number
- Description of your peripheral attachments
- Description of your software (operating system, version, appli-
cation software, etc.)
- A complete description of the problem
- The exact wording of any error messages
Safety Precaution - Static Electricity
Follow these simple precautions to protect yourself from harm and the
products from damage.
1. To avoid electrical shock, always disconnect the power from your
PC chassis before you work on it. Don't touch any components on
the CPU card or other cards while the PC is on.
2. Disconnect power before making any configuration changes. The
sudden rush of power as you connect a jumper or install a card may
damage sensitive electronic components.
Packing List
Before setting up the system, check that the items listed below are
included and in good condition. If any item does not accord with the
table, please contact your dealer immediately.
1x PCI-1720 or PCI-1720Ucard
1x Companion CD-ROM (DLL driver included)
1x User Manual (this manual)

v Table of Contents
Contents
Chapter 1 General Information ....................................... 2
1.1 Introduction ................................................................................. 2
1.2 Features........................................................................................ 2
1.3 Applications................................................................................. 3
1.4 Specifications............................................................................... 3
1.5 Block Diagram............................................................................. 4
Chapter 2 Installation ....................................................... 6
2.1 Unpacking.................................................................................... 6
2.2 Driver Installation........................................................................ 7
Figure 2.1: Setup Screen of Advantech Automation Software 7
Figure 2.2: Different Options for Driver Setup ........................ 8
2.3 Hardware Installation .................................................................. 9
Figure 2.3: The Device Name Listed on Device Manager .... 10
2.4 Device Setup and Configuration ............................................... 11
2.4.1 Setting Up the Device ............................................................. 11
Figure 2.4: The Device Manager Dialog Box ........................ 11
2.4.2 Configuring the Device .......................................................... 12
Figure 2.5: The Device Setting dialog box ............................ 12
Figure 2.6: Device Name Appearing on List of Devices Box 13
Chapter 3 Jumpers and I/O Connectors ....................... 16
Figure 3.1: Jumper Locations (SW1 is only for PCI-1720U) 16
3.1 Jumper Settings.......................................................................... 16
3.1.1 Using Jumpers to Set Current Sink Ranges ............................ 16
Figure 3.2: Jumper Settings for PCI-1720U’s Current Sink
Range ................................................................... 16
3.1.2 Jumper JP5 Setting for the Reset State ................................... 17
Figure 3.3: Jumper JP5 Setting for the Reset State ................ 17
3.2 Connector and Pin Assignments................................................ 18
Figure 3.4: PCI-1720U Pin Assignments ............................... 18
3.2.1 Signal Descriptions of I/O Connector .................................... 19
3.3 Setting the BoardID Switch (SW1) ........................................... 20
Table 3.1: Board ID Setting (SW1) ...................................... 20
3.3.1 Identity Register ..................................................................... 21

PCI-1720 & 1720U User Manual vi
Table 3.2: Identity Register of PCI-1720U ........................... 21
Chapter 4 Register Structure and Format.................... 24
4.1 Overview ................................................................................... 24
4.2 I/O Port Address Map................................................................ 25
Table 4.1: Register Format and Function Description .......... 25
4.2.1 D/A Output Channel 0 to 3 ..................................................... 26
Table 4.2: Register for D/A Data .......................................... 26
4.2.2 D/A Voltage Range and Polarity ............................................ 26
Table 4.3: Register for D/A Voltage Range and Polarity ..... 26
Table 4.4: Output Range of D/A Channel n ......................... 26
4.2.3 Synchronized Output Prompt Register ................................... 27
4.2.4 Synchronized Output Control Bitt .......................................... 27
Table 4.5: Synchronized Output Control Bit ........................ 27
4.3 Unipolar and Bipolar Binary Code Tables ................................ 28
Table 4.6: Unipolar Binary Code Table ............................... 28
Table 4.7: Bipolar Binary Code Table .................................. 28
Chapter 5 Signal Connections ........................................ 30
5.1 Overview ................................................................................... 30
5.2 D/A Voltage Output Connections.............................................. 30
Figure 5.1: Floating-load Conn. for D/A Voltage Output ...... 30
Figure 5.2: Grounded-load Conn. for D/A Voltage Output ... 31
Figure 5.3: Differential-load Conn. for D/A Voltage Output 31
5.3 Current Sink Connections.......................................................... 32
Figure 5.4: Grounded-load connection with a floating power
supply .................................................................. 32
Figure 5.5: Floating-load connection with a grounded power
supply .................................................................. 32
Figure 5.6: Floating-load Conn. with an Internal +12 VDC Pow-
er Supply .............................................................. 33
5.4 Current Sink Load and Power Supply ....................................... 33
Figure 5.7: PCI-1720U Current Sink Circuitry ...................... 33
Appendix A Calibration ..................................................... 36
A.1 Overview ................................................................................... 36
A.2 Starting Calibration.................................................................... 37
Figure A.1:PCI-1720U VR assignment ................................. 37
A.3 Unipolar Output Calibration...................................................... 38
A.4 Bipolar Output Calibration ........................................................ 38
A.5 Current Sink Calibration............................................................ 38

2
CHAPTER
1
General Information

PCI-1720 & 1720U User Manual 2
Chapter 1 General Information
1.1 Introduction
PCI-1720 cards are isolated analog output cards. They provide four 12-bit
analog output channels with isolation protection of 2,500 V DC between
the outputs and the PCI bus. This is ideal for industrial applications
where high-voltage protection is required. PCI-1720U is also equipped
with a universal PCI interface.
Keeping the Output Settings and Values after System Reset
The four outputs can be set independently to different ranges:
0 to +5 V, 0 to +10 V, ±5 V, ±10 V, 0 to 20 mA (sink) or 4 to 20 mA
(sink). When the system is hot reset (the power is not shut off),
PCI-1720 cards can either retain the last analog output settings and val-
ues, or return to its default configuration based on its jumper setting. This
practical function eliminates danger caused by misoperation during
unexpected system resets.
PCI-bus Plug & Play
The PCI-1720 cards use a PCI controller to interface the cards to the PCI
bus. The controller fully implements the PCI bus specification Rev 2.1.
All bus relative configurations, such as base address and interrupt assign-
ment, are automatically controlled by software.
1.2 Features
• Four 12-bit D/A output channels
• Multiple output ranges
• 2500 VDC isolation between the outputs and the PCI bus
• Keeps the output settings and values after system reset
• One 37-pin D-type connector for easy wiring
• BoardID switch
• Universal PCI Bus (PCI-1720U only)
• Glitch-free power up

3 Chapter1
1.3 Applications
• Process control
• Programmable voltage source
• Programmable current sink
• Servo control
1.4 Specifications
D/A Output
• Channels: 4 isolated D/A channels
• Resolution: 12 bits
• Output Ranges:Unipolar: 0 ~ +5 V, 0 ~ +10 V
Bipolar: ±5 V, ±10 V
Current loop (sink): 0 ~ 20 mA, 4 ~ 20 mA
• Throughput: 500 kHz
• Accuracy: ±0.024%
• Isolation Voltage: 2,500 V DC between the outputs and the PCI bus
• Output Current: ±5 mA max.
• Current Loop Excitation Voltage: 50 V max.
• On-board 12 VDC Excitation Voltage: (80 mA max.)
Power Consumption
• +5 V @ 350 mA (typical), 500mA (Max.)
• +12V @ 200 mA (typical), 350mA (Max.)
Physical
• Connector: 37-pin D-type connector
• Dimensions: 175 x 100 mm (6.9" x 3.9")

PCI-1720 & 1720U User Manual 4
Environment
• Operating Temperature: 0 ~ 60° C (32 ~ 140° F)
• Storage Temperature: -20 ~ 70° C (-4 ~ 158° F)
• Operating Humidity: 5 ~ 95 % RH non-condensing
(refer to IEC 68-2-3)
• MTBF: over 71,280 hrs @ 25° C, grounded, fixed environment
1.5 Block Diagram
PCI BUS
PCI
Controller
Isolation
2500 V
DC
Control
Logic
and
Decoder
Data Buffer Data Buffer
4 Ch
12 Bit
D/A D/A Range
Control

2
CHAPTER
2
Installation
This chapter gives users a package item
checklist, proper instructions for
unpacking and step-by-step procedures
for both driver and card installation.
Sections include:
• Unpacking
• Driver Installation
• Hardware Installation
• Device Setup and Configuration

PCI-1720 & 1720U User Manual 6
Chapter 2 Installation
2.1 Unpacking
After receiving your PCI-1720 package, please inspect its contents first.
The package should contain the following items:
• PCI-1720 or PCI-1720U card
• Companion CD-ROM (Device Drivers included)
• User Manual
PCI-1720 cards harbors certain electronic components vulnerable to elec-
trostatic discharge (ESD). ESD can easily damage the integrated circuits
and certain components if preventive measures are ignored.
Before removing the card from the antistatic plastic bag, you should take
the following precautions to ward off possible ESD damage:
• Touch the metal part of your computer chassis with your hand to dis-
charge the static electricity accumulated on your body. Alternatively,
one can also use a grounding strap.
• Touch the anti-static bag to a metal part of your computer chassis
before opening the bag.
• Take hold of the card only by the metal bracket when removing it out of
the bag.
After taking out the card, you should first:
• Inspect 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 immedi-
ately. Do not install a damaged card into your system.
Also, pay extra caution to the following aspects to ensure proper installa-
tion:
• Avoid physical contact with materials that could hold static electricity
such as plastic, vinyl and Styrofoam.

7 Chapter2
• Whenever you handle the card, grasp it only by its edges. DO NOT
TOUCH the exposed metal pins of the connector or the electronic com-
ponents.
2.2 Driver Installation
We recommend you to install the driver before you install the PCI-1720
card into your system, since this will guarantee a smooth installation pro-
cess.
The Advantech Device Drivers Setup program for the PCI-1720 card is
included in the companion CD-ROM that is shipped with your DA&C
card package. Please follow the steps below to install the driver software:
Step 1: Insert the companion CD-ROM into your CD-ROM drive.
Step 2: The Setup program will be launched automatically if you have the
autoplay function enabled on your system. When the Setup Program is
launched, you will see the following Setup Screen.
Figure 2.1: Setup Screen of Advantech Automation Software
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.

PCI-1720 & 1720U User Manual 8
Step 3: Select the Individual Driver option.
Step 4: Select the specific device then just follow the installation instruc-
tions step by step to complete your device driver installation and setup.
Figure 2.2: Different Options for Driver Setup
For further information on driver-related issues, an online version of the
Device Drivers Manual is available by accessing the following path:
Start/Programs/Advantech Automation/Device Manager/Device Driver's
Manual
Note: If the autoplay function is not enabled on your com-
puter, use Windows Explorer or Windows Run com-
mand to execute SETUP.EXE on the companion CD-
ROM.

9 Chapter2
2.3 Hardware Installation
Make sure you have installed the driver first before you install the card
(please refer to 2.2 Driver Installation).
After the Device Drivers installation is completed, you can then install
the PCI-1724U card into any PCI slot on your computer. However, it is
suggested that you refer to the computer user’s manual or related docu-
mentation if you have any doubt. Please follow the steps below to install
the card onto your system.
1. Turn off your computer and unplug the power cord and cables.
TURN OFF your computer before installing or removing any com-
ponents on the computer.
2. Remove the cover of your computer.
3. Remove the slot cover on the back panel of your computer.
4. Touch the metal part on the surface of your computer to neutralize
the static electricity that might be on your body.
5. Insert the PCI-1724U card into a PCI slot. Hold the card only by its
edges and carefully align it with the slot. Insert the card firmly into
place. Use of excessive force must be avoided; otherwise, the card
might be damaged.
6. Fasten the bracket of the PCI card on the back panel rail of the
computer with screws.
7. Connect appropriate accessories (62-pin cable, wiring terminals,
etc. if necessary) to the PCI card.
8. Replace the cover of your computer chassis. Re-connect the cables
you removed in step 2.
9. Plug in the power cord and turn on the computer.
Note: In case you installed the card without installing the
Device Drivers first, Windows 95/98/ME will recog-
nize your card as an “unknown device” after
rebooting, and will prompt you to provide the nec-
essary driver. You should ignore the prompting
messages (just click the Cancel button) and set up
the driver according to the steps described in 2.2
Driver Installation.

PCI-1720 & 1720U User Manual 10
After the PCI-1724U card is installed, you can verify whether it is prop-
erly installed on your system in the Device Manager:
1. Access the Device Manager through Control Panel/System/Device
Manager.
2. The device name of the PCI-1724U should be listed on the Device
Manager tab on the System Property Page.
Figure 2.3: The Device Name Listed on the Device Manager
If your card is properly installed, you should see the device name of your
card listed on the Device Manager tab. If you do see your device name
listed on it but marked with an exclamation sign “!”, it means your card
has not been correctly installed. In this case, remove the card device from
the Device Manager by selecting its device name and press the Remove
button. Then go through the driver installation process again.
After your card is properly installed on your system, you can now config-
ure your device using the Advantech Device Manager Program that has
itself already been installed on your system during driver setup. A com-
plete device installation procedure should include device setup, configu-
ration and testing. The following sections will guide you through the
Setup, Configuration and Testing of your device.

11 Chapter2
2.4 Device Setup and Configuration
The Advantech Device Manager program is a utility that allows you to set
up, configure and test your device, and later stores your settings on the
system registry. These settings will be used when you call the APIs of
Advantech Device Drivers.
2.4.1 Setting Up the Device
1. To install the I/O device for your card, you must first run the
Device Installation program (by accessing Start/Programs/ Advan-
tech Automation/Device Manager).
2. You can then view the device(s) already installed on your system
(if any) on the Installed Devices list box.
Figure 2.4: The Device Manager Dialog Box

PCI-1720 & 1720U User Manual 12
2.4.2 Configuring the Device
3. In the Device Setting dialog box (Fig.2-5), you can calibrate the
voltage output range for the 8 D/A channels in 4 groups. For more
detailed information, please refer to Appendix D Calibration Util-
ity.
Figure 2.5: The Device Setting dialog box
Note: Users have three options for the output voltage
ranges and current ranges: -10 ~ 10 V, 0 ~ 20 mA
and 4 ~ 20 mA.

13 Chapter2
4. After you have finished configuring the device, click OK and the
device name will appear in the Installed Devices box as seen
below:
Figure 2.6: Device Name Appearing on the List of Devices Box
After your card is properly installed and configured, you can click the
Test… button to test your hardware by using the testing utility supplied.
For more detailed information, please refer to Chapter 2 of the Device
Drivers Manual.
You can also find the rich examples on the CD-ROM to speed up your
programming.

PCI-1720 & 1720U User Manual 14