Advantech PCI-1751U Bedienungsanleitung

PCI-1751U

48-bit Digital Input/Output Card

with Universal PCI Bus

User Manual

PCI-1751U User Manual ii

This documentation and the software included with this product are copy-

righted 2006 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 transmit-

ted 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.

CE Notification

The PCI-1751U, 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.

Part No. 2003175110 2nd Edition

Printed in Taiwan December 2006

iii Table of Contents

Contents

Chapter 1 General Information ....................................... 2

1.1 Introduction ....................................................................... 2

1.1.1 Numbering Convention .................................................. 2

1.1.2 Features .......................................................................... 2

1.1.3 Applications ................................................................... 3

1.1.4 Specifications ................................................................. 3

1.1.5 Input Signal .................................................................... 3

1.1.6 Output Signal ................................................................. 3

1.1.7 Interrupt Source ............................................................. 4

1.1.8 Transfer Rate .................................................................. 4

Chapter 2 Installation ....................................................... 6

2.1 Initial Inspection................................................................ 6

2.2 Unpacking ......................................................................... 6

2.3 Jumper Settings ................................................................. 7

Figure 2.1:Connectors & Jumpers ................................. 7

2.3.1 Set Ports as Input or Output by Software ...................... 7

2.3.2 Using Jumpers to Set Ports as Output Ports .................. 8

2.3.3 Restore Ports to Condition Prior to Reset ...................... 8

2.3.4 Select Clock Source of Timers and Counter .................. 9

Table 2.1:Jumper Settings .............................................. 9

2.4 Setting the BoardID Switch (SW1)................................. 10

Table 2.2:BoardID Setting (SW1) ............................... 10

2.4.1 BoardID Register ......................................................... 10

Table 2.3:BoardID Register ......................................... 10

2.5 PCI-1751U Block Diagram............................................. 11

Figure 2.2:PCI-1751U Block Diagram ........................ 11

2.6 Pin Assignments.............................................................. 12

2.7 Installation Instructions ................................................... 13

Chapter 3 Operation ....................................................... 16

3.1 Introduction ..................................................................... 16

3.2 Digital I/O Ports .............................................................. 16

3.2.1 8255 Mode 0 ................................................................ 16

3.2.2 Interrupt Function of the DIO Signals ......................... 17

3.2.3 Input/Output Control .................................................... 17

Table 3.1:Bit map of port configuration register ......... 17

3.2.4 Initial Configuration .................................................... 17

3.2.5 Dry Contact Support for Digital Input ......................... 18

Figure 3.1:Wet & Dry Contact Inputs ......................... 18

3.3 Timer/Counter Operation ................................................ 19

3.3.1 Introduction .................................................................. 19

Figure 3.2:Timer & Counter Structure ........................ 19

3.3.2 Timer 0 & 1: Two 16-bit Timers or One 32-bit Timer 19

3.3.3 Counter 2 ...................................................................... 20

PCI-1751U User Manual iv

3.3.4 Timer/Counter Frequency and Interrupt ...................... 20

3.4 Interrupt Function............................................................ 21

3.4.1 Introduction .................................................................. 21

3.4.2 IRQ Level .................................................................... 21

3.4.3 Interrupt Control Register (Base + 32) ........................ 21

Table 3.2:Interrupt control register bit map ................. 21

3.4.4 Interrupt Source Control .............................................. 22

Figure 3.3:Figure 3-3: Interrupt sources ...................... 22

Table 3.3:Interrupt mode bit values ............................. 22

3.4.5 Interrupt Triggering Edge Control ............................... 23

Table 3.4:Triggering edge control bit values ............... 23

3.4.6 Interrupt Flag Bit ......................................................... 23

Table 3.5:Interrupt flag bit values ................................ 23

Appendix A Counter Chip Function................................. 26

A.1 The Intel 8254 ................................................................. 26

A.2 Counter Read/Write and Control Registers..................... 26

A.3 Counter Operating Modes ............................................... 29

A.3.1 MODE 0 – Stop on Terminal Count ............................ 29

A.3.2 MODE 1 – Programmable One-shot ........................... 29

A.3.3 MODE 2 – Rate Generator .......................................... 29

A.3.4 MODE 3 – Square Wave Generator ............................ 30

A.3.5 MODE 4 – Software Triggered Strobe ........................ 30

A.3.6 MODE 5 – Hardware Triggered Strobe ....................... 30

A.4 Counter Operations ......................................................... 31

A.4.1 Read/Write Operation .................................................. 31

A.4.2 Counter Read-back Command ..................................... 31

A.4.3 Counter Latch Operation ............................................. 31

A.5 Counter Applications....................................................... 32

Appendix B Register Format ............................................ 34

CHAPTER

General Information

PCI-1751U User Manual 2

Chapter 1 General Information

1.1 Introduction

The PCI-1751U is a 48-bit DI/O and counter/timer card with Universal

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 buff-

ered 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

interrupts 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 connector for easy and reliable connections to

field devices.

Two other features give the PCI-1751U practical advantages in an indus-

trial setting. When the system is hot reset (the power is not turned off)

the PCI-1751U retains the last I/O port settings and output values if the

user has set jumper JA1 to enable this feature. Otherwise, port settings

and output values reset to their safe default state, or to the state deter-

mined by other jumper settings. The PCI-1751U'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 specifi-

cally noted otherwise. In particular, where a register address is given as

(Base + 32), the decimal number "32" should be added to the base value.

1.1.2 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 interrupt

3 Chapter1

• High density SCSI 68-pin connector

• Output status readback

• Two 16-bit timers can be cascaded to one 32-bit timer, and can generate

watchdog 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

• BoardID

1.1.3 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

1.1.4 Specifications

• I/O channels: 48 digital I/O lines

• Programming mode: 8255 PPI mode 0

1.1.5 Input Signal

• Logic high voltage: 2.0 to 5.25 V

• Logic low voltage: 0.0 to 0.80 V

• High level input current: 20 mA

• Low level input current: -0.2 mA

1.1.6 Output Signal

• Logic high voltage: 2.4 V minimum.

• Logic low voltage: 0.4 V maximum

• High level input current: 15 mA maximum (source)

• Low level input current: 24 mA maximum (sink)

• Driving capability: 15 LS TTL

PCI-1751U User Manual 4

1.1.7 Interrupt Source

• PC00, PC04, PC10, PC14, Timer 1 and Counter 2.

1.1.8 Transfer Rate

(This value depends on software and speed of computer.)

• Typical: 1 MB/sec (tested under DOS, Pentium® 100 MHz CPU)

• Maximum: 1.5 MB/sec

• Connector: One SCSI-II 68-pin female connector

• Power consumption: 5 V @ 850 mA (Typical)

5 V @ 1.0 A (Max.)

• Operating temperature: 0 ~ 70º C (32º F ~ 158 ºF)

• Storage temperature: -20 ~ 80º C(-4º F ~ 176º F)

• Humidity: 5% ~ 95% non-condensing

• Dimension: 170 x 100 mm (6.9" x 3.9")

CHAPTER

Installation

PCI-1751U User Manual 6

Chapter 2 Installation

2.1 Initial Inspection

Before starting to install the PCI-1751U, make sure there is no visible

damage on the card. We carefully inspected the card both mechanically

and electrically before shipment. It should be free of marks and in perfect

order on receipt.

As you unpack the PCI-1751U, check it for signs of shipping damage

(damaged box, scratches, dents, etc.) If it is damaged or fails to meet its

specifications, notify our service department or your local sales represen-

tative immediately. Also, call the carrier immediately and retain the ship-

ping 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-1751U contains components that are sensitive and vulnerable to

static electricity. 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-1751U card from its protective packaging by grasping

the card's rear panel. Handle the card only by its edges to avoid static dis-

charge 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 plastic, 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.

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