Advantech PCI-1750 User manual

User Manual
PCI-1750
32-ch Isolated Digital I/O Card

PCI-1750 User Manual ii
Copyright
The documentation and the software included with this product are copyrighted 2011
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. How-
ever, 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.
Acknowledgements
Intel and Pentium are trademarks of Intel Corporation.
Microsoft Windows and MS-DOS are registered trademarks of Microsoft Corp.
All other product names or trademarks are properties of their respective owners.
Product Warranty (2 years)
Advantech warrants to you, the original purchaser, that each of its products will be
free from defects in materials and workmanship for two years from the date of pur-
chase.
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 installation. 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 testing, most of
our customers never need to use our repair service. If an Advantech product is defec-
tive, 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 manual, 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 warranty service.
5. Write the RMA number visibly on the outside of the package and ship it prepaid
to your dealer.
Printed in Taiwan Edition 3
Part No. 2003175000 December 2011

iii PCI-1750 User Manual
Declaration of Conformity
CE
This product 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.
Technical Support and Assistance
1. Visit the Advantech web site at www.advantech.com/support where you can find
the latest information about the product.
2. Contact your distributor, sales representative, or Advantech's customer 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, application software,
etc.)
–A complete description of the problem
–The exact wording of any error messages
Warnings, Cautions and Notes
Document Feedback
To assist us in making improvements to this manual, we would welcome comments
and constructive criticism. Please send all such - in writing to: support@advan-
tech.com
Warning! Warnings indicate conditions, which if not observed, can cause personal
injury!
Caution! Cautions are included to help you avoid damaging hardware or losing
data. e.g.
There is a danger of a new battery exploding if it is incorrectly installed.
Do not attempt to recharge, force open, or heat the battery. Replace the
battery only with the same or equivalent type recommended by the man-
ufacturer. Discard used batteries according to the manufacturer's
instructions.

PCI-1750 User Manual iv
Safety Instructions
1. Read these safety instructions carefully.
2. Keep this User Manual for later reference.
3. Disconnect this equipment from any AC outlet before cleaning. Use a damp
cloth. Do not use liquid or spray detergents for cleaning.
4. For plug-in equipment, the power outlet socket must be located near the equip-
ment and must be easily accessible.
5. Keep this equipment away from humidity.
6. Put this equipment on a reliable surface during installation. Dropping it or letting
it fall may cause damage.
7. The openings on the enclosure are for air convection. Protect the equipment
from overheating. DO NOT COVER THE OPENINGS.
8. Make sure the voltage of the power source is correct before connecting the
equipment to the power outlet.
9. Position the power cord so that people cannot step on it. Do not place anything
over the power cord.
10. All cautions and warnings on the equipment should be noted.
11. If the equipment is not used for a long time, disconnect it from the power source
to avoid damage by transient overvoltage.
12. Never pour any liquid into an opening. This may cause fire or electrical shock.
13. Never open the equipment. For safety reasons, the equipment should be
opened only by qualified service personnel.
14. If one of the following situations arises, get the equipment checked by service
personnel:
15. The power cord or plug is damaged.
16. Liquid has penetrated into the equipment.
17. The equipment has been exposed to moisture.
18. The equipment does not work well, or you cannot get it to work according to the
user's manual.
19. The equipment has been dropped and damaged.
20. The equipment has obvious signs of breakage.
21. DO NOT LEAVE THIS EQUIPMENT IN AN ENVIRONMENT WHERE THE
STORAGE TEMPERATURE MAY GO BELOW -20° C (-4° F) OR ABOVE 60° C
(140° F). THIS COULD DAMAGE THE EQUIPMENT. THE EQUIPMENT
SHOULD BE IN A CONTROLLED ENVIRONMENT.
22. CAUTION: DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY
REPLACED. REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE
RECOMMENDED BY THE MANUFACTURER, DISCARD USED BATTERIES
ACCORDING TO THE MANUFACTURER'S INSTRUCTIONS.
23. The sound pressure level at the operator's position according to IEC 704-1:1982
is no more than 70 dB (A).

v PCI-1750 User Manual
Safety Precaution - Static Electricity
DISCLAIMER: This set of instructions is given according to IEC 704-1. Advantech
disclaims all responsibility for the accuracy of any statements contained
herein.Safety Precaution - Static Electricity
Follow these simple precautions to protect yourself from harm and the products from
damage.
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.
Disconnect power before making any configuration changes. The sudden rush
of power as you connect a jumper or install a card may damage sensitive elec-
tronic components.

PCI-1750 User Manual vi

vii PCI-1750 User Manual
Contents
Chapter 1 Overview...............................................1
1.1 Introduction ............................................................................................... 2
1.2 Features .................................................................................................... 2
1.3 Applications............................................................................................... 2
1.4 Specifications ............................................................................................ 2
Chapter 2 Installation...........................................5
2.1 Initial inspection......................................................................................... 6
2.2 Unpacking ................................................................................................. 6
2.3 Location of Connectors ............................................................................. 6
Figure 2.1 Board Connections ..................................................... 6
2.4 PCI-1750 Block Diagram........................................................................... 7
Figure 2.2 Block Diagram ............................................................ 7
2.5 Connector Pin Assignments ..................................................................... 8
2.6 Installation Instructions.............................................................................. 9
Chapter 3 Operation............................................11
3.1 Operation ................................................................................................ 12
3.2 Isolated Digital I/O Ports ......................................................................... 12
3.2.1 Introduction ................................................................................. 12
3.2.2 Interrupt function of the DIO signals ........................................... 12
3.2.3 Power On Configuration.............................................................. 12
3.2.4 Isolated Inputs............................................................................. 13
Figure 3.1 Connecting external input source ............................. 13
3.2.5 Isolated Outputs.......................................................................... 14
Figure 3.2 Connecting an external output load.......................... 14
3.3 Timer and Counter .................................................................................. 15
3.3.1 Introduction ................................................................................. 15
Figure 3.3 Block diagram of timer/counter................................. 15
3.3.2 Timer/Counter Frequency and Interrupt...................................... 15
3.4 Interrupt Function .................................................................................... 16
3.4.1 Introduction ................................................................................. 16
3.4.2 IRQ Level .................................................................................... 16
3.4.3 Interrupt Control Register [Base + 32(Dec)] ............................... 16
Table 3.1: Interrupt control register bit map............................... 16
3.4.4 Interrupt Source Control.............................................................. 17
Figure 3.4 Interrupt source control............................................. 17
Table 3.2: Interrupt mode bit values .......................................... 17
3.4.5 Interrupt Triggering Edge Control ............................................... 17
Table 3.3: Triggering edge control bit values ............................ 17
3.4.6 Interrupt Flag Bit ......................................................................... 18
Table 3.4: Interrupt flag bit values ............................................. 18
Appendix A Function of 8254 Counter Chip ........19
A.1 The Intel 8254 ......................................................................................... 20
A.1.1 Counter read/write and control registers..................................... 20
A.2 Counter operating modes........................................................................ 22
A.2.1 MODE 0 – Stop on terminal count .............................................. 22
A.2.2 MODE 1 – Programmable one-shot............................................ 22

PCI-1750 User Manual viii
A.2.3 MODE 2 – Rate generator .......................................................... 22
A.2.4 MODE 3 – Square wave generator............................................. 22
A.2.5 MODE 4 – software triggered strobe .......................................... 23
A.2.6 MODE 5 – Hardware triggered strobe ........................................ 23
A.3 Counter operations ................................................................................. 23
A.3.1 Read/write operation................................................................... 23
A.3.2 Counter read-back command ..................................................... 23
A.3.3 Counter latch operation .............................................................. 23
Appendix B Register Format of PCI-1750............ 25
B.1 Register Format of PCI-1750 .................................................................. 26

Chapter 1
1Overview

PCI-1750 User Manual 2
1.1 Introduction
The PCI-1750 offers 16 isolated digital input channels, 16 isolated digital output
channels, one isolated counter and one timer with PCI bus interface. With isolation
protection of 2500 VD C the PCI-1750 is ideal for industrial applications where high-
voltage protection is required.
The card's 16 bits are divided into two 8-bit I/O ports. This makes the PCI-1750 very
easy to program. This card also offers dual interrupt handling capability, providing the
user more flexibility in using the counter, timer, digital inputs or a combination to gen-
erate interrupts to the PC. A user can easily configure the interrupts through soft-
ware.
The PCI-1750 uses a PCI controller to interface the card to the PCI bus. The control-
ler fully implements the PCI bus specification Rev 2.1. All bus relative configurations,
such as base addresses and interrupt assignments, are automatically controlled by
software. No jumpers or DIP switches are required for user configuration.
1.2 Features
16 isolated digital input and 16 isolated digital output channels.
High voltage isolation on all channels (2500 VDC)
High sink current on isolated output channels (200 mA/Channel).
D-type 37-pin female connector.
Supports dry contact or 5 to 48 VDC isolated input.
Chapter 1 General Information 3
Dual interrupt handling capability
Timer / Counter interrupt capability generates watchdog timer interrupts
1.3 Applications
Digital I/O control.
Industrial ON/OFF control.
Industrial and lab automation.
Switch status sensing
BCD interfacing.
1.4 Specifications
16 Optically-Isolated Inputs:
Input range: 5 to 48 VDC or dry contact.
Isolation voltage: 2,500 VDC
Throughput: 10 KHz
16 Optically-Isolated Outputs:
Output range: Open collector 5 to 40 VDC
Sink Current: 200 mA Max.
Isolation voltage: 2,500 VDC
Throughput: 10 KHz

3 PCI-1750 User Manual
Chapter 1 Overview
One 16-bit Optically-Isolated Counter:
Shares Pin with isolated input 15.
Throughput: 1 MHz Max.
Isolation voltage: 2,500 VDC
One 32-bit Timer.
10 MHz internal clock source
Interrupt Source
Isolated Input 0, 4, 8, 12, Counter and Timer.
Dimensions: 175 mm x 100 mm (6.9" x 3.9")
Connectors: One DB-37 female connector
One 2-pin terminal block for extended ground
Power consumption: 5 V @ 850 mA (Typical) 5 V @ 1.0 A (Max.)
Operating temperature: 0 ~ 70ºC (32ºF ~ 158ºF)
Storage temperature: -20 ~ 80ºC (-4ºF ~ 176ºF)
Humidity: 5% ~ 95% non-condensing

PCI-1750 User Manual 4

Chapter 2
2Installation

PCI-1750 User Manual 6
2.1 Initial inspection
Before starting to install the PCI-1750, make sure there is no visible damage on the
card. We carefully inspected the card both mechanically and electrically before ship-
ment. It should be free of marks and in perfect order on receipt.
As you unpack the PCI-1750, check it for signs of shipping damage (damaged box,
scratches, dents, etc.) If it is damaged or fails to meet specification, notify our service
department or your local sales representative immediately. Also, call the carrier
immediately and retain the shipping carton and packing materials for inspection by
the carrier. We will then make arrangements to repair or replace the unit.
2.2 Unpacking
The PCI-1750 contains components that are sensitive and vulnerable to static elec-
tricity. Discharge any static electricity on your body to ground by touching the back of
the system unit (grounded metal) before you touch the board.
Remove the PCI-1750 card from its protective packaging by grasping the rear panel.
Handle the card only by its edges to avoid static discharge which could damage its
integrated circuits. Keep the antistatic package. Whenever you remove the card from
the PC, please store the card in this package for its protection.
You should also avoid contact with materials that hold static electricity such as plas-
tic, vinyl and styrofoam.
Check the product contents inside the packing. There should be one card, one CD-
ROM, and this manual. Make sure nothing is missing.
2.3 Location of Connectors
Figure 2.1 shows the names and locations of connectors on the board.
The PCI-1750 is a plug and play device. The PCI BIOS assigns the system resources
automatically at system start-up. All functions can be set by software. No jumpers or
switches are used on this card.
Figure 2.1 Board Connections

7 PCI-1750 User Manual
Chapter 2 Installation
2.4 PCI-1750 Block Diagram
Figure 2.2 Block Diagram
Counter Counter 2
IDI 8~15
IDO 8~15
IDO 0~7
IDI 0~7
Interrupt
Control
Logic
ISO DI 0
ISO DI 8
ISO DI 15

PCI-1750 User Manual 8
2.5 Connector Pin Assignments
Description of pin use:
IDI 0 ~ IDI 15: Isolated digital input pins
IDO 0 ~ IDO 15: Isolated digital output pins
IGND: Isolated ground
COM1: Common pin for connecting inductive loads of isolated output
channels IDO 0 ~ IDO 7
COM2: Common pin for connecting inductive loads of isolated output
channels IDO 8 ~ IDO 15
Counter2: Input pin of isolated counter (shared with IDI 15)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
IDI 1
IDI 3
IDI 5
IDI 7
IDI 9
IDI 13
IDI 15/Counter 2
IGND
IGND
IDO 1
IDO 3
IDO 5
IDO 7
IDO 9
IDO 11
IDO 13
IDO 15
IDI 11
IDI 0
IDI 2
IDI 4
IDI 6
IDI 8
IDI 12
IDI 14
IGND
COM1
IDO 0
IDO 2
IDO 4
IDO 6
IDO 8
IDO 10
IDO 12
IDO 14
COM2
IDI 10
Warning!
Be careful when wiring digital input lines. Never apply a negative voltage
to the isolated input pins, as this may damage the PCI-1750.

9 PCI-1750 User Manual
Chapter 2 Installation
2.6 Installation Instructions
The PCI-1750 can be installed in any PCI slot in the computer.How ever,
refer to the computer user's manual to avoid any mistakes and
danger before you follow the installation procedure below:
1. Turn off your computer and any accessories connected to the computer.
2. Disconnect the power cord and any other cables from the back of the computer
3. Remove the cover of the computer.
4. Select an empty 5 V PCI slot. Remove the screw that secures the expansion
slot cover to the system unit. Save the screw to secure the interface card retain-
ing bracket.
5. Carefully grasp the upper edge of the PCI-1750. Align the hole in the retaining
bracket with the hole on the expansion slot and align the gold striped edge con-
nector with the expansion slot socket.
6. Press the card into the socket gently but firmly. Make sure the card fits the slot
tightly.
7. Secure the PCI-1750 by screwing the mounting bracket to the back panel of
computer.
8. Attach any accessories (cable, wiring terminal, etc.) to the card.
9. Replace the cover of your computer. Connect the cables you removed in step 2.
10. Turn the computer power on.
Warning!
TURN OFF your computer power supply whenever you install or remove
any card, or connect and disconnect cables.

PCI-1750 User Manual 10

Chapter 3
3Operation

PCI-1750 User Manual 12
3.1 Operation
Maintaining signal connections is one of the most important factors in ensuring that
your application system is sending and receiving data correctly. A good signal con-
nection can avoid unnecessary and costly damage to your PC and other hardware
devices. This chapter provides useful information about how to connect input and
output signals to the PCI-1750 via the I/O connector.
3.2 Isolated Digital I/O Ports
3.2.1 Introduction
The PCI-1750 has 16 isolated digital input channels designated IDI 0 ~ IDI 15, and 16
isolated digital output channels designated IDO 0 ~ IDO 15. Data can be read from or
written to the card's channels.
3.2.2 Interrupt function of the DIO signals
Two I/O channels (IDI 0 and IDI 8) can be used to generate hard ware interrupts. A
user can program the interrupt control register [Base + (32Dec)] to select the interrupt
sources. Refer to Section “Interrupt Function” for details about interrupt control.
3.2.3 Power On Configuration
The default configuration after power on, hardware reset or software reset is to set all
the isolated output channels to low so that users need not worry about damaging
external devices during system start up or reset.