NuDAM
ND-6520
RS-232 to RS-422/RS-485 Converter
ND-6510
RS-422/RS-485 Repeater
User’s Guide
@Copyright 1999 ADLink Technology Inc.
All Rights Reserved.
Manual Rev. 2.10: June 22, 1999
The information in this document is subject to change without prior
notice in order to improve reliability, design and function and does not
represent a commitment on the part of the manufacturer.
In no event will the manufacturer be liable for direct, indirect, special,
incidental, or consequential damages arising out of the use or inability to
use the product or documentation, even if advised of the possibility of
such damages.
This document contains proprietary information protected by copyright.
All rights are reserved. No part of this manual may be reproduced by any
mechanical, electronic, or other means in any form without prior written
permission of the manufacturer.
Trademarks
Nudam is registered trademarks of ADLink Technology Inc.,
Other product names mentioned herein are used for identification
purposes o nly and may be trademarks and/or registered trademarks of
their respective companies.
Contents i
Contents
1. INTRODUCTION............................................................................................1-1
1.1 WHAT IS NUDAM ?............................................................................1-1
1.2 OUTSTANDING FEATURES OF NUDAM..........................................1-1
1.3 NUDAM-6000 SERIES PRODUCTS OVERVIEW .................................1-3
1.4 EIA RS-485 STANDARD......................................................................1-4
1.5 RS-485 ON NUDAM............................................................................1-4
1.6 NUDAM RS-485 NETWORK CONFIGURATIONS.............................1-5
1.7 CONSTRUCTING A NUDAM NETWORK ..........................................1-7
1.8 TERMINATION BUS.............................................................................1-7
1.9. SHIELDING............................................................................................1-8
1.10. HOW TO CALCULATE CHECKSUM VALUE........................................1-9
2. NUDAM-6520..................................................................................................2-1
2.1. OVERVIEW ............................................................................................2-1
2.2. SETUP....................................................................................................2-6
2.3. INSTALLATION ....................................................................................2-8
2.4 PROGRAMMING....................................................................................2-9
3. NUDAM-6510..................................................................................................3-1
3.1. OVERVIEW ............................................................................................3-1
3.2. SETUP....................................................................................................3-5
3.3 INSTALLATION ....................................................................................3-7
3.4 PROGRAMMING....................................................................................3-8
4. INSTALL A BRAND-NEW NUDAM...........................................................4-1
4.1 INITIALIZE A BRAND-NEW NUDAM...............................................4-1
4.2 INSTALL A NEW NUDAM TO A EXISTING NETWORK .................4-3
5. SOFTWARE UTILITY....................................................................................5-1
5.1 SOFTWARE INSTALLATION...............................................................5-1
5.2 HOW TO EXECUTE THE NUDAM ADMINISTRATION..................5-1
5.3 NUDAM ADMINISTRATION FUNCTION OVERVIEW.....................5-2
6. TROUBLESHOOTING AND MAINTENANCE........................................6-1
Introduction 1-1
1. Introduction
1.1 What is NuDAM ?
NuDAM is a series of data acquisition modules. It provides a total
solution of the data acquisition network and control system. You
can remotely control up to 256 NuDAM modules on RS-485
netowrk. All you need is to use a host computer, like PC (Personal
Computer), with one RS-232 serial port for controlling the whole
system. The maximum communication distance is 4000 feet from
the host computer.
NuDAM is based on the RS-485 multi-drop network system, each
module has an unique address ID. Using simple ASCII command &
response protocol through standard RS-485 interface can control all
the NuDAM modules in the RS-485 network.
The NuDAM modules provide direct linkage to a wide variety of
sensors and perform all signal conditioning, scaling, linearization
and conversion. The modules can be used to measure temperature,
pressure, flow, voltage, current and numerous types of digital
signals.
1.2 Outstanding Features of NuDAM
• Industry standard networking
All NuDAM modules use the RS-485 communication protocol
for transmitting and receiving at high rates and over long
distance.
• Two-wire and multi-drop communication
A single twisted pair of wires is used to transmit and receive
data between modules. Multi-drop capability makes system
configuration more flexible and easy set-up of a network.