Advantech ADAM-4500 User Manual
ADAM-4500
PC-based Communication
Controller
User's Manual
Copyright
Notice
This document is copyrighted, 1997, by Advantech Co., Ltd. All rights are reserved. Advantech
Co., Ltd. reserves the right to make improvements to 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. However, Advantech Co., Ltd. assumes no
responsibility for its use, nor for any infringements upon the rights of third parties which may
result from its use.
Acknowledgments
ADAM is a trademark of Advantech Co., Ltd.
IBM and PC are trademarks of International Business Machines Corporation.
Part No. 2050500110 1st Edition
Printed in Taiwan July
1997
Table of Contents
Chapter 1 General Information 1
1.1 Introduction 1
1.2 Features 1
1.3 Specifications 2
1.4 System Diagram 3
Chapter 2 Installation Guidelines 5
2.1 System Requirements to Setup ADAM-4500 5
2.2 Steps to Successfully Setup the System 5
Step 1: Review the requirements 5
Step 2: Wiring the power cables and download cable 5
Step 3: Run utility software in host computer 6
Step 4: Power on ADAM-4500 8
2.3 Jumper Setting 8
COM1 Port Setting 9
Watchdog Timer Setting 9
Reset Function Setting 9
2.4 Communication Wiring 9
RS-232 Connection 9
RS-485 Connection
1
0
Chapter 3 Programming and Downloading
1
1
3.1 Programming
1
1
Mini BIOS functions
1
1
Converting Program Codes
1
1
Other limitations
1
2
Programming the Watchdog timer
1
2
Interrupt types
1
3
Memory Mapping
1
3
3.2 Downloading and transferring
1
4
Install Utility Software on Host PC
1
4
Preparing the ALLFILE directory
1
4
Downloading into flash ROM
1
4
Transferring files to SRAM
1
6
3.3 Steps to Building a Successful Application
1
6
Step 1:Write and simulate control logic on a PC
1
6
Step 2:Connect the cables
1
6
Step 3:Convert and download codes to flash ROM
1
7
Step 4:Power on ADAM-4500 to complete the application
1
7
Chapter 4 Function Library
1
8
Appendix A Register Structure
3
0
Appendix B Safety Instructions
32
Chapter 1 General Information
1.1 Introduction
The ADAM-4500 is a fully functional standalone controller, designed for industrial automation and
control, enclosed in a small package. It provides an ideal means of producing an IBM PC
compatible hardware platform.
Emulating Open PC environments
The module is much like a compact computer, and includes an 80188 CPU, 256 KB Flash ROM,
256 KB SRAM, COM1, COM2, and a program download port. Its built-in ROM-DOS is an MSDOS equivalent operating system, which provides all of the basic functions of MS-DOS except for
BIOS. A user can run standard PC software and application programs, written in high level
languages such as C or C++, within the ROM-DOS environment. Moreover, the module also
provides free ROM memory for application downloading and free RAM memory for application
operation.
Built-in RS -232/RS-485 Communication Ports
The ADAM-4500 has two communication ports to let the controller easily communicate with the
other devices in your application. The COM1 port can be configured as an RS -232 or an RS-485
communication interface via the jumper setting. The COM2 port is dedicated as an RS -485 port.
This unique design makes the controller suitable for use in a variety of applications.
Built-in Real-time Clock and Watchdog Timer
The controller also includes a real-time clock and a watchdog timer function. The real-time clock
ensures time recording while events occur. The watchdog timer is designed to automatically reset
the microprocessor when the system fails. This feature greatly reduces the level of maintenance
required and makes the ADAM-4500 ideal for use in applications that require a high level of
system stability.
1.2 Features
?? Built-in boot ROM-DOS to run PC programs
?? Free ROM/RAM memory for user's applications
?? 2-wire, multi-drop RS -485 networking
?? Communication speed up to 115.2 Kbps
?? RS-232/RS-485 modes (jumper selectable)
?? Automatic data flow control in RS -485 mode
?? Built-in real-time clock and watchdog timer
?? Easy mounting on a DIN-rail or panel
?? Program download cable and utility included
1.3 Specifications
System
?? CPU: 80188-40
?? Flash ROM: 256 KB (170 KB free memory for users)
?? Operating system: Boot ROM-DOS
?? SRAM: 256 KB ( 234 KB free memory for users)
?? Timer BIOS: Yes
?? Real-time clock: Yes
?? Watchdog timer: Yes
?? COM1: RS -232/RS-485
?? COM2: RS -485
?? Program download port (RS -232): Tx, Rx, GND
RS-232 Interface
?? Signals: TxD, RxD, RTS, CTS, DTR, DSR, DCD, RI, GND
?? Mode: Asynchronous full duplex, point to point
?? Connector: DB -9 pin
?? Transmission speed: up to 115.2 Kbps
?? Max transmission distance: 50 feet (15.2 m)
RS-485 Interface
?? Signals: DATA+, DATA -
?? Mode: Half-duplex, multi-drop
?? Connector: Plug-in terminal block
?? Transmission speed: up to 115.2 Kbps
?? Max transmission distance: 1220 m (4000 feet)
Power
?? Unregulated +10 to +30 VDC
?? Protected against power reversal
?? Power consumption: 2.0 W
Mechanical
?? Case: ABS with captive mounting hardware
?? Plug-in screw terminal block:
Accepts 0.5 mm2 to 2.5 mm2, 1 - #12 or 2 - #14 to #22 AWG
Environment
?? Operating temperature: -10 to 70°C (14 to 158°F)
?? Storage temperature: -25 to 70°C (-13 to 158°F)
?? Humidity: 5 to 95 %, non-condensing
1.4 System Diagram
ADAM-4500
Figure 1-1: ADAM -4500 Diagram
Function Block Diagram
SRAM
RS232/485
Tranceiver
COM#1
UART
16 Bit
FLASH ROM
up
RS-485
Tranceiver
Programming
Port
Tranceiver
+5V
GND
COM#2
UART
WDT&Reset
+5V
GND
Power
Converter
Figure 1-2: ADAM -4500 Function Block Diagram
RTC
+10V to 30Vdc
Chapter 2 Installation Guidelines
This chapter provides guidelines to set up and install the ADAM-4500 communication controller.
A simplified hookup scheme is provided that lets you configure a successful system off-line
before implementing it in your application.
2.1 System Requirements to Setup ADAM-4500
The following list gives an overview of what is needed to setup, install and configure an ADAM4500 system.
?? ADAM-4500 module
?? An IBM PC/AT compatible computer that can download programs with an RS -232 port.
?? Power supply for the ADAM-4500 (+10 to + 30 VDC)
?? ADAM-4500 download utility software
?? Download cable (RS -232 interface)
Host computer
Any computer that is IBM PC/AT compatible which can run and write programs in an MS-DOS
environment, and provides an RS -232 communication port to allow users to download programs
into the ADAM-4500, can function as the host computer.
Power supply
For ease of use in industrial environments, the ADAM-4500 will accept industry standard +24 VDC
unregulated power. The ADAM-4500 was designed to operate using any power supply voltage
between +10 and +30 VDC. Power ripples must be limited to 5 V peak to peak while the voltage in
all cases must be maintained between +10 and +30 VDC.
Utility software
A disk containing menu-driven utility software is provided with ADAM-4500 to help users to
download programs to the ADAM-4500. The ADAM-4500 utility software is executed in an MSDOS or compatible environment.
Download cable
A customized download cable is included. A user can connect it between the COM port of a host
computer and the download port of the ADAM-4500 for downloading programs.
2.2 Steps to Successfully Setup the System
Step 1: Review the requirements
Before you power on the ADAM-4500, make sure you have a host computer, a power supply, and
the utility software and download cable.
Step 2: Wiring the power cables and download cable
Connect the power cable between the power supply and the ADAM-4500. Make sure the power
source is between +10 and +30 VDC.
Figure 2-1: Power Supply Connections
We advise use of the following standard colors (as indicated on the ADAM-4500) for the power
cables:
+Vs (R) Red
GND (B) Black
Connect the download cable between the host computer and the ADAM-4500. A customized
download cable is provided with the ADAM-4500, which includes a DB -9 pin connector for the
connection to the host computer, and three color-coded wires for connection to the ADAM-4500
terminal block. The following figure shows how to connect the ADAM-4500 to the host computer.
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