Advantech PCL-841 Series User manual
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
Register address map.......................................................................... 33
Register descriptions .......................................................................... 34
1
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
2
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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