Advantech PCL-841 Series Manual de usuario

Contents

Chapter 1

Introduction ........................................................................... 1

Introduction.......................................................................................... 2

Features ................................................................................................ 3

Specifications ....................................................................................... 3

Chapter 2

HardwareInstallation ........................................................... 5

Initial inspection ................................................................................... 6

Jumper and switch locations ................................................................ 7

Card configuration................................................................................ 8

Chapter 3

SoftwareProgramming ....................................................... 13

Library functions ................................................................................ 14

Exampleprogram ................................................................................. 19

Chapter 4

DataMonitorUtility ............................................................ 21

Software overview .............................................................................. 22

Main Menu ......................................................................................... 22

Chapter 5

Wiring .................................................................................. 27

Pin assignments.................................................................................. 28

CANsignal wiring .............................................................................. 29

Appendix A

Registerstructure ............................................................... 31

CAN controller address allocation ..................................................... 32

Introduction

CHAPTER

2PCL-841 Series User's Manual

Introduction

The PCL-841 is a special purpose communication card that brings thc

Control Area Network to your PC. With the built-in CAN controller,

the PCL-84 l provides bus arbitration and error detcction with

automatic transmission repeat function. This drastically avoids data

loss and ensures system reliability. The on-board CAN controllers arc

located at different positions in thc memory. You can run both CAN

controllers at the same time, independently. The PCL-84 1 opcrates at

baud rates up to I Mbps and can be installcd directly into thc cxpan-

sion slot of your PC.

Control Area Network

Thc CAN (Control Area Network) is a serial bus systcm cspecially

suitcd for networking “intelligent” 1/0 deviccs as well as sensors and

actuators within a machine or plant. Characterized by its multi-mastcr

protocol, rcal-time capability, error correction, high noise immunity,

and thc cxistencc of many different silicon components, the CAN

serial bus system, originally developed by Bosch for use in automo-

biles, is increasingly being used in industrial automation.

Direct memory mapping

The PCL-84 1 is assigned with memory address, which allows direct

access to the CAN controller. This is the simplest and fastest way of

programming any board in a PC because the board is regarded as

standard RAM.

Optical Isolation Protection

On-board optical isolators protect your PC and equipment against

damage from ground ioops, increasing system reliability in harsh

environments.

Chapter 1 General Information 3

Features

•Operates two separate CAN networks at the same time

•High speed transmission up to I Mbps

•16 MHz CAN controller frequency

• Takes a 4 KB address space, 40 base address adjustable in steps

fromC800HuptoEFOOH

•Optical isolation protection of 1000 VDC ensures system reliability

• Wide IRQ selection for each port includes: IRQ3, 4, 5, 6, 7, 9, 10, 11,

12, 15

•LED indicates Transmit/Receive status on each port

•Direct memory mapping enables speedy access to the CAN

controllers

•C library and examples included

Specifications

•Ports:2

•CANcontroller:SJA-1000

•CANtransceiver:82C250

•Signalsupport:CAN-L,CAN-H

•Memoryaddress:FromC800HtoEFOOH

•IRQ:3,4,5,6, 7, 9, 10,11,12,15

•Isolationvoltage:1000VDC

•Powerconsumption:+5 V @ 400 mAtypical,950mAmax.

•Connectors:Dual DB-9 male connectors

•Operatingtemperature:32 to1 22º F(0 to 50ºC)

•Dimensions:7.25"x 4. 13"(18.4x10.5cm)

•Shippingweight:0.9 lb(0.4kg)

4PCL-841 Series User's Manual

Hardware

Installation

CHAPTER

6PCL-841 Series User's Manual

Initial inspection

You should find the following items inside the shipping package (in

addition to this manual):

•PCL-841Dual-port CANInterfaceCard

•C Driver and DataMonitor Utility Diskette

We have carefully inspected the PCL-841 mechanically and electri-

calIy before shipping. It should be free of marks and scratches and in

perfect working order upon receipt.

As you unpack the PCL-841, check it for signs of shipping damage

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

meet specifications, notify our service department or your local

representative immediately. Also notify the carrier. Retain the ship-

ping carton and packing material for inspection by the carrier. After

inspection we will make arrangements to repair or replace the unit.

When you handle the PCL-841, remove it from its protective packag-

ing by grasping the rear metal panel. Keep the anti-vibration packing.

Whenever you remove the card from the PC, store it in this package

for protection.

Warning! Modern electronic devices are very sensitive to damage

from static electricity. Ground yourself before you touch the

card. We recommend that you ~use a grounded wrist strap

and place the card on a static dissipative mat wheneveryou

work with it. At the very least, touch the back of the

grounded chassis of the system unit (metal) before you

handle the board. Avoid contact with materials that hold a

static charge, such as styrofoam. Do not touch the exposed

circuit connectors.

Chapter 2 Hardware Installation 7

Jumper and switch locations

8PCL-841 Series User's Manual

Card configuration

The PCL-841 has two ports, each with one jumper. The jumpers set the

IRQ for the ports, which can be configured separately. A DIP switch

sets the memory base address for each port. The following chart

shows the function of the jumper and the switch (see the previous

page for jumper and switch locations).

Switch and jumper functions

CAN controllers

JP1 Po rt 1

JP2 Port 2

Mennory base address

SW1 Port 1, Port 2

Default settings

Port I is set for COMI (IRQ=12, Memory address=DA00:0000).

Port 2 is set for COM2 (IRQ=IS, Memory address=DA00:0200). ;

If you need to change these settings, see the following sections.

Otherwise, you can simply install the card. Note that you will need to

disable your CPU card’s on-board COM ports, if any, or set them to

alternate addresses/IRQs.

Chapter 2 Hardware Installation 9

Interrupt (IRQ) setup (JP1 and JP2)

Jumpers JPI and JP2 set the interrupts for Port I and Port 2, respec-

tively. You can choose any IRQ from 3 to 15, except 8, 13 and 14.

When you choose IRQs, make sure they are not used for other cards

in the system. The following figures show the card’s default settings.

JP1:Port 1IRQDefault JP2: Port2IRQDefault

Memory base address (SW1)

The memory base address for the PCL-841, which requires 4 KB of

address space, is made up of the memory segment and its associated

offset. The address for the memory segment is set through SWI, a six-

position DIP switch. You can choose any base address from C800 to

EFOO. The following table shows the DIP switch settings and the

corresponding base addresses.

Memory address configUration (SW1)

Address/DIPswitch A12 A13 A14 A15 A16 A17

C800H on on on off on on

C9OOH off on on off on on

CAOOH on off on off on on

CBOOH off off on off on on

CCOOH on on off off on on

CDOOH off on off off on on

CEOOH on off off off on on

CFOOH off off off off on on

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