Advantech PCM-3753I Manual de usuario
PCM-3753I
96-channel Digital I/O
PCI-104 Module
User Manual
PCM-3753I User Manual ii
Copyright
This documentation and the software included with this product are
copyrighted 2008 by Advantech Co., Ltd. All rights are reserved.
Advantech Co., Ltd. reserves the right to make improvements in the prod-
ucts 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 Pen-
tium are trademarks of Intel Corporation.
CE Notification
PCM-3753I 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.
Printed in Taiwan February 2008
iii
Product Warranty (2 years)
Advantech warrants to you, the original purchaser, that each of its prod-
ucts will be free from defects in materials and workmanship for two years
from the date of purchase.
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 instal-
lation. 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 test-
ing, most of our customers never need to use our repair service. If an
Advantech product is defective, 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 man-
ual, 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 war-
ranty service.
5. Write the RMA number visibly on the outside of the package and
ship it prepaid to your dealer.
PCM-3753I User Manual iv
Technical Support and Assistance
Step 1. Visit the Advantech web site at www.advantech.com/support
where you can find the latest information about the product.
Step 2. Contact your distributor, sales representative, or Advantech's cus-
tomer 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, appli-
cation software, etc.)
- A complete description of the problem
- The exact wording of any error messages
Packing List
Before setting up the system, check that the items listed below are
included and in good condition. If any item does not accord with the
table, please contact your dealer immediately.
• 1 x PCM-3753I
• 1 x CD-ROM
• 1 x Startup Manual
Safety Precaution - Static Electricity
Follow these simple precautions to protect yourself from harm and the
products from damage.
1. 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.
2. Disconnect power before making any configuration changes. The
sudden rush of power as you connect a jumper or install a card may
damage sensitive electronic components.
v Table of Contents
Contents
Chapter 1 General Information ....................................... 2
1.1 Introduction ....................................................................... 2
1.2 Features ............................................................................. 4
1.3 Applications ...................................................................... 4
1.4 Specifications .................................................................... 5
1.5 Pin Assignments (CN0~CN3) ........................................... 6
Chapter 2 Installation ....................................................... 8
2.1 Initial Inspection................................................................ 8
2.2 Unpacking ......................................................................... 8
2.3 Jumper Settings ................................................................. 9
Figure 2.1:Location of Connectors and Jumpers ........... 9
Table 2.1:Summary of Jumper Settings ....................... 10
2.4 Setting the BoardID Switch (SW2)................................. 11
Table 2.2:BoardID Setting (SW2) ............................... 11
2.4.1 BoardID Register ......................................................... 11
Table 2.3:BoardID register of PCM-3753I .................. 11
2.5 SW3 & SW4 Settings...................................................... 12
2.6 Hardware Installation ...................................................... 12
Chapter 3 Operation ....................................................... 14
3.1 Overview ......................................................................... 14
3.2 Digital I/O Ports .............................................................. 14
3.2.1 Introduction .................................................................. 14
3.2.2 8255 Mode 0 ................................................................ 14
3.2.3 Input/Output Control .................................................... 15
Table 3.1:Bit map of port configuration register ......... 15
3.2.4 Initial Configuration .................................................... 15
3.2.5 Dry Contact Support for Digital Input ......................... 16
Figure 3.1:Wet and dry contact inputs ......................... 16
3.3 Interrupt Functions .......................................................... 17
3.3.1 Introduction .................................................................. 17
3.3.2 IRQ Level .................................................................... 17
3.3.3 Interrupt Control Registers .......................................... 17
Table 3.2:Interrupt control register bit map ................. 18
Figure 3.2:Interrupt sources ......................................... 19
3.3.4 Interrupt Source Control .............................................. 20
Table 3.3:Interrupt mode bit values ............................. 20
3.3.5 Interrupt Triggering Edge Control ............................... 21
Table 3.4:Triggering edge control bit values ............... 21
3.3.6 Interrupt Flag Bit ......................................................... 21
Table 3.5:Interrupt flag bit values ................................ 21
3.3.7 Pattern Match Interrupt Function ................................. 22
3.3.8 Change of State Interrupt Function .............................. 23
PCM-3753I User Manual vi
2
CHAPTER
1
General Information
PCM-3753I User Manual 2
Chapter 1 General Information
1.1 Introduction
The PCM-3753I is a 96-ch digital I/O PCI-104 module. The card emu-
lates mode 0 of the 8255 PPI chip, but the buffered circuits offer a higher
driving capability than the 8255. The 96 I/O lines are divided into twelve
8-bit I/O ports: A0, B0, C0, A1, B1, C1, A2, B2, C2, A3, B3 and C3.
Users can configure each port as input or output via software.
Dry Contact Support for Digital Input
Each digital input channel at the PCM-3753I accepts either 0 ~ 5 VDC
wet contact or dry contact inputs. This dry contact capability allows the
channel to respond to changes in external circuitry (e.g., the closing of a
switch in the external circuitry) when no voltage is present in the external
circuit.
Reset Protection Fulfills the True Requirement of Industrial
Applications
When the system is hot reset (the power is not turned off), the PCM-
3753I can either retain the last I/O port settings and outputs value, or
return to its default configuration, depending on the jumper setting. This
function protects the system from wrong operations during unexpected
system resets.
3 Chapter1
Interrupt Functions Ensure Faster System Response
Two lines of each port C (i.e., ports C0, C1, C2 and C3) are connected to
an interrupt circuit. The “Interrupt Control Register” of the PCM-3753I
controls how these signals generate an interrupt. More than one interrupt
request signals can be generated at the same time, and then the software
can process these request signals by ISR. The multiple interrupt sources
provide the card with more capability and flexibility.
The PCM-3753I also provides “Pattern Match” interrupt function for port
A0. The card monitors the states of port A0 and compares them with a
pre-set pattern. When the received state matches the pre-set
pattern, the PCM-3753I generates an interrupt signal to the system.
“Change of State” interrupt function is provided at port B0. When any
signal line of port B0 changes its state, the card generates an interrupt to
the system to handle this event.
These interrupt functions release the CPU from the burden of pulling all
I/O points, enabling a PC to handle more I/O points with higher
performance.
PCM-3753I User Manual 4
1.2 Features
• 96 TTL digital I/O lines
• Emulates mode 0 of 8255 PPI
• Buffered circuits for higher driving capacity than 8255
• Multiple-source interrupt handling
• Output status read-back
• “Pattern match” and “Change of state” interrupt functions for critical
I/O monitoring
• Keeps I/O setting and digital output values when hot system reset
• Supports dry contact and wet contact
• 50-pin pin header
• BoardID switch
1.3 Applications
• Industrial AC/DC I/O devices monitoring and controlling
• Relay and switch monitoring and controlling
• Parallel data transfer
• TTL, DTL and CMOS logic signal sensing
• Indicator LED driving
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