Advantech PCI-1751 User manual

User Manual
PCI-1751
48-bit Digital Input/ Output Card
for PCI Bus

PCI-1751 User Manual ii
Copyright
The documentation and the software included with this product are copyrighted 2015
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.
Part No. XXXXXXXXXX Edition 1
Printed in Taiwan June 2015

iii PCI-1751 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.
FCC Class B
Note: This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installa-
tion. This equipment generates, uses and can radiate radio frequency energy and, if
not installed and used in accordance with the instructions, may cause harmful inter-
ference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interfer-
ence to radio or television reception, which can be determined by turning the equip-
ment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.

PCI-1751 User Manual iv
Technical Support and Assistance
1. Visit theAdvantech web site at http://support.advantech.com 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
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.
Note! Notes provide optional additional information.

v PCI-1751 User Manual
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:
The power cord or plug is damaged.
Liquid has penetrated into the equipment.
The equipment has been exposed to moisture.
The equipment does not work well, or you cannot get it to work according to
the user's manual.
The equipment has been dropped and damaged.
The equipment has obvious signs of breakage.
15. 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.
16. 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.
The sound pressure level at the operator's position according to IEC 704-1:1982 is
no more than 70 dB (A).
DISCLAIMER: This set of instructions is given according to IEC 704-1. Advantech
disclaims all responsibility for the accuracy of any statements contained herein.

PCI-1751 User Manual vi
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.

vii PCI-1751 User Manual
Contents
Chapter 1 General Information ............................1
1.1 Introduction ...............................................................................................2
1.1.1 Numbering Convention.................................................................2
1.2 Features....................................................................................................2
1.3 Applications...............................................................................................2
1.4 Installation Guide ......................................................................................3
1.5 Software Overview....................................................................................3
1.6 Accessories...............................................................................................3
Chapter 2 Installation............................................5
2.1 Unpacking.................................................................................................6
2.2 Hardware Installation ................................................................................7
Chapter 3 Signal Connections.............................9
3.1 Overview.................................................................................................10
3.2 Switch and Jumper Settings....................................................................10
Figure 3.1 Location of connectors and jumpers.........................10
Table 3.1: Summary of Jumper Settings...................................11
Table 3.2: Board ID setting (SW1).............................................12
3.3 Pin Assignments .....................................................................................12
3.4 Digital I/O Ports.......................................................................................13
Table 3.3: Bit map of Port Configuration Register.....................13
3.5 Timer/Counter Operation ........................................................................15
3.6 Interrupt Function....................................................................................16
Table 3.4: Interrupt Control Register Bit Map............................16
Table 3.5: Interrupt Mode Bit Values.........................................17
Table 3.6: Triggering Edge Control Bit Values ..........................17
Table 3.7: Interrupt Flag Bit Values...........................................17
Appendix A Specifications ....................................19
A.1 PCI-1751 Specifications..........................................................................20
Table A.1: Digital Input...............................................................20
Table A.2: Digital Output............................................................20
Table A.3: Counter / Timer.........................................................20
Table A.4: General Specifications..............................................20
Appendix B Block Diagram ...................................21
B.1 PCI-1751 Block Diagram.........................................................................22
Appendix C Function of 8254 Counter Chip ........23
C.1 The Intel 8254.........................................................................................24
C.2 Counter Read/Write and Control Registers.............................................24
C.3 Counter Operating Modes.......................................................................26
C.3.1 MODE 0 - Stop on Terminal Count.............................................26
C.3.2 MODE 1 - Programmable One-shot............................................26

PCI-1751 User Manual viii
C.3.3 MODE 2 - Rate Generator.......................................................... 26
C.3.4 MODE 3 - Square Wave Generator............................................ 26
C.3.5 MODE 4 - Software Triggered Strobe......................................... 27
C.3.6 MODE 5 - Hardware Triggered Strobe....................................... 27
C.4 Counter Operations................................................................................. 27
C.4.1 Read/Write Operation................................................................. 27
C.4.2 Counter Read-back Command................................................... 27
C.4.3 Counter Latch Operation ............................................................ 28
C.5 Counter Applications............................................................................... 28
Appendix D Register of PCI-1751......................... 29
D.1 Register Format of PCI-1751.................................................................. 30

Chapter 1
1General Information

PCI-1751 User Manual 2
1.1 Introduction
The PCI-1751 is a 48-bit DI/O and counter/timer card with PCI bus. It provides you
with 48 bits of parallel digital input/output as well as 3 timers. It emulates mode 0 of
the 8255 PPI chip, but the buffered circuits offer a higher driving capability than the
8255.
The card emulates two 8255 PPI chips to provide 48 DI/O bits. The I/O bits are
divided into six 8-bit I/O ports: A0, B0, C0, A1, B1 and C1. You can configure each
port as either input or output via software.
The dual interrupt handling capability provides users the flexibility to generate inter-
rupts to a PC. A pin in the connector can output a digital signal simultaneously with
the card's generating an interrupt. This card uses a high density SCSI 68-pin connec-
tor for easy and reliable connections to field devices.
Two other features give the PCI-1751 practical advantages in an industrial setting.
When the system is hot reset (the power is not turned off) the PCI-1751 retains the
last I/O port settings and output values if the user has set jumper JP4 to enable this
feature. Otherwise, port settings and output values reset to their safe default state, or
to the state determined by other jumper settings. The PCI-1751's other useful feature
is it supports both wet and dry contacts, allowing it to interface with other devices
more easily.
1.1.1 Numbering Convention
All numbers given in this manual are in decimal format unless specifically noted oth-
erwise. In particular, where a register address is given as (Base + 32), the decimal
number "32" should be added to the base value.
1.2 Features
48 TTL level digital I/O lines.
Emulates mode 0 of 8255 PPI
Buffered circuits provide higher driving capability
Interrupt handling
Interrupt output pin for simultaneously triggering external devices with the inter-
rupt
High density SCSI 68-pin connector
Output status readback
Two 16-bit timers can be cascaded to one 32-bit timer, and can generate watch-
dog timer interrupts
One 16-bit event counter can generate event interrupts
Keeps port I/O settings and digital output states after hot system reset
Supports dry contact and wet contact
1.3 Applications
Industrial AC/DC I/O devices monitoring and control
Relay and switch monitoring and control
Parallel data transfer
Sensing the signals of TTL, DTL, CMOS logic
Driving indicator LEDs

3 PCI-1751 User Manual
Chapter 1 General Information
1.4 Installation Guide
Before you install your PCI-1751 card, please make sure you have the following nec-
essary components:
PCI-1751 card
PCI-1751 User's Manual
Advantech driver DAQNavi (included in the CD-ROM)
Wiring cable PCL-10168 (optional)
Wiring board ADAM-3968 (optional)
Personal computer or workstation with a PCI-bus slot
Some other optional components are also available for enhanced operation:
Application software: Advantech Navigator (Utility) offered by DAQNavi software
After you get the necessary components and maybe some of the accessories for
enhanced operation of your card, you can then begin the installation procedures.
1.5 Software Overview
Advantech offers device drivers, SDKs, third-party driver support and application
software to help fully exploit the functions of your PCI-1751 card. All these software
packages are available on the companion DVD-ROM or you can browse Advantech
website to get the latest update: http://www.advantech.com/.
1.6 Accessories
Advantech offers a complete set of accessory products to support the PCI-1751 card.
These accessories include:
Wiring Cable
The PCL-10168 shielded cable is specially designed for PCI-1751 cards to provide
high resistance to noise. To achieve 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 digital lines are separately sheathed and
shielded to neutralize EMI/EMC problems.
Wiring Boards
The ADAM-3968 is a 68-pin D-type wiring terminal module for DIN-rail mounting.
This terminal module can be readily connected to the Advantech cards and allow
easy yet reliable access to individual pin connections for the PCI-1751 card.

PCI-1751 User Manual 4

Chapter 2
2Installation

PCI-1751 User Manual 6
2.1 Unpacking
After receiving your PCI-1751 package, please inspect its contents first.
The package should contain the following items:
PCI-1751 card
Companion CD-ROM (Device Drivers included)
Startup Manual
The PCI-1751 card harbors certain electronic components vulnerable to electrostatic
discharge (ESD). ESD could easily damage the integrated circuits and certain com-
ponents 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:
Touch 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.
Touch the anti-static bag to a metal part of your computer chassis before open-
ing the bag.
Take hold of the card only by the metal bracket when removing it out of the bag.
After taking out the card, first you should:
Inspect the card for any possible signs of external damage (loose or damaged com-
ponents, 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.
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.

7 PCI-1751 User Manual
Chapter 2 Installation
2.2 Hardware Installation
After the device driver installation is completed, you can now go on to install the PCI-
1751 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.
1. Turn off your computer and unplug the power cord and cables. TURN OFF your
computer before installing or removing any components 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-1751 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 of the computer.
7. Connect appropriate accessories 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
After your card is properly installed on your system, you can now configure your
device using the Device Installation Program that has itself already been installed on
your system during driver setup. A complete device installation procedure should
include device setup, configuration and testing. The following sections will guide you
through the Setup, Configuration and Testing of your device.

PCI-1751 User Manual 8

Chapter 3
3Signal Connections

PCI-1751 User Manual 10
3.1 Overview
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-1751 via the I/O connector.
3.2 Switch and Jumper Settings
We designed the PCI-1751 with ease-of-use in mind. It is a "plug and play" card, i.e.
the system BIOS assigns the system resources such as base address and interrupt
automatically. There are only two functions with 11 jumpers to be set by the user. The
following section describes how to configure the card. You may want to refer to the
figure below for help in identifying card components.
Figure 3.1 Location of connectors and jumpers
Jumper Settings to Set Ports as Input or Output by Software
By shorting the upper two pins of jumpers JPA0, JPB0, JPC0L, JPC0H, JPA1, JPB1,
JPC1L or JPC1H, a user sets the corresponding ports to be configurable as input or
output ports by software. (JPA0 means jumper for port A0, JPB0 means jumper for
port B0, etc.) The initial state of each port after system power on or reset will be set
as input logic 1 (voltage high), provided that no external signals are connected, and
provided jumper JP4 does not determine otherwise (see Jumper J4 discussion
below).
Using Jumpers to Set Ports as Output Ports
By shorting the lower two pins of the jumpers JPA0, JPB0, JPC0L, JPC0H, JPA1,
JPB1, JPC1L or JPC1H, a user sets the corresponding ports to be output ports.
(JPA0 means jumper for port A0, JPB0 means jumper for port B0, etc.) Shorting the
lower two pins of a port's jumper pins disables the port from being software configu-
rable as an input port. The initial state of each of these ports after system power on or

11 PCI-1751 User Manual
Chapter 3 Signal Connections
reset will be logic 0 (voltage low), unless jumper JP4 determines otherwise. (See
Jumper JP4 below.)
Jumper JP4 Restores Ports to Their Condition Prior to Reset
Jumper JP4 gives the PCI-1751 a new and valuable capability. With JP4 enabled, the
PCI-1751 "memorizes" all port I/O settings and output values, and, in the event of a
"hot" reset, the settings and output values present at the port just prior to reset are
restored to each port following reset. This feature applies to both ports set by soft-
ware, and to ports configured as output ports via jumper. Depending on the applica-
tion, this capability may allow a card to be reset without requiring a complete
shutdown of processes controlled by the card (since port values are left unchanged
and are interrupted only momentarily).
Complete loss of power to the chip clears chip memory. Thus, even if JP4 is enabled,
if the power to the card is disconnected, the card's initial power-on state will be the
default state (for software-set ports) or the state of an output port with voltage low
output (for jumper-set ports).
When jumper JP4 is not enabled, power-off or reset results in ports returning to their
default state (for software-set ports) or returning to the state of output port with volt-
age low output (for jumper-set ports).
Select Clock Source of Timers and Counter
Jumpers JP1, JP2 and JP3 are used to select the clock source of Timer 0, Timer 1
and Counter 2, respectively. Short the upper two pins of the jumpers to select an
external clock source, or short the lower two pins to select an internal clock source.
However, the internal clock source of Timer 1 is connected to the output of Timer 0,
so shorting the upper two pins of JP2 results in the cascading of Timer 0 and Timer 1
as a 32-bit timer.
Table 3.1: Summary of Jumper Settings
Names of Jumpers Function description
JPA0, JPA1: Jumpers for ports A0, A1
JPB0, JPB1: Jumpers for ports B0, B1
JPC0L, JPC1L: Jumpers for low nibble of
ports C0, C1
JPC0H, JPC1H: Jumpers for high nibble of
ports C0, C1
(2-3)
short Sets port as an output port
(1-2)
short Sets port to be software configu- rable as input or output (default)
JP1: Timer 0
JP2: Timer 1
JP3: Counter 2
(2-3)
short Internal counter clock source
(1-2)
short External counter clock source (default)
JP4
(2-3)
short All ports return to state held just prior to reset
(1-2)
short
All ports return to default states (for
software-set ports) or to output
ports output low (for jumper-set
ports)

PCI-1751 User Manual 12
3.3 Pin Assignments
Description of pin use:
PA00 ~ PA07: I/O pins of Port A0
PA10 ~ PA17: I/O pins of Port A1
PB00 ~ PB07: I/O pins of Port B0
PB10 ~ PB17: I/O pins of Port B1
PC00 ~ PC07: I/O pins of Port C0
PC10 ~ PC17: I/O pins of Port C1
CNT0_OUT, CNT1_OUT and CNT2_OUT:
Output pins of Counter/Timer 0, 1 and 2
CNT0_CLK, CNT1_CLK and CNT2_CLK:
External clock source of Counter / Timer 0, 1 and 2
CNT0_G, CNT1_G and CNT2_G:
Gate control pins of Counter / Timer 0, 1 and 2
INT_OUT: Interrupt output. This pin changes to logic 1
whenever the PCI-1751 generates an interrupt, and
returns to logic 0 when the interrupt is cleared.
GND: Ground
VCC: +5 VDC voltage output
Table 3.2: Board ID setting (SW1)
ID3 ID2 ID1 ID0 Board ID
11110
11101
11012
11003
10114
10105
10016
10007
01118
01109
010110
010011
001112
001013
000114
000015
Note! On: 1, Off: 0