ADLINK ND-6067 User Manual
NuDAM
®
NuDAM-6000 User’s Guide
Recycled Paper
© Copyright 1999~2001 ADLINK Technology Inc.
All Rights Reserved.
Manual Rev. 3.00: March 16, 2001
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 only
and may be trademarks and/or registered trademarks of their respective
companies.
Table of Contents
INTRODUCTION .............................................................................................. 11
1.1 WHAT IS NUDAM ?............................................................................. 11
1.2 OUTSTANDING FEATURES OF NUDAM ................................................ 12
1.3 NUDAM-6000 SERIES PRODUCTS OVERVIEW ...................................... 13
1.4 EIA RS-485 STANDARD ...................................................................... 14
1.5 RS-485 ON NUDAM ........................................................................... 14
1.6 NUDAM RS-485 NETWORK CONFIGURATIONS ................................... 15
1.7 CONSTRUCTING A NUDAM NETWORK ................................................ 18
1.8 TERMINATION BUS .............................................................................. 18
1.9. SHIELDING ........................................................................................... 19
COMMUNICATION MODULE ....................................................................... 20
2.1 OVERVIEW OF NUDAM-6520 ............................................................. 20
2.1.1 Features of NuDAM-6520 ................................................................. 20
2.1.2 Specifications of NuDAM-6520 ......................................................... 21
2.1.3 A Look at NuDAM-6520 & Pin Assignment ...................................... 22
2.1.4 Pin Definition of NuDAM-6520 ......................................................... 23
2.1.5 NuDAM-6520 Functional Block Diagram ......................................... 25
2.1.6 Setup .................................................................................................. 26
2.1.7 Installation ......................................................................................... 27
2.1.8 Programming ..................................................................................... 27
2.2 OVERVIEW OF NUDAM-6510 ............................................................. 28
2.2.1 Features of NuDAM-6510 ................................................................. 28
2.2.2 Specifications of NuDAM-6510 ......................................................... 28
2.2.3 A Look at NuDAM-6510 & Pin Assignment ...................................... 30
2.2.4 Pin Definition of NuDAM-6510 ......................................................... 31
2.2.5 NuDAM-6510 Functional Block Diagram ......................................... 31
2.2.6 Setup .................................................................................................. 32
2.2.7 Installation ......................................................................................... 33
2.2.8 Programming ..................................................................................... 34
2.3 OVERVIEW OF NUDAM-6530 ............................................................. 35
2.3.1 Features of NuDAM-6530 ................................................................. 35
2.3.2 Specifications of NuDAM-6530 ......................................................... 36
2.3.3 A Look at NuDAM-6530 & Pin Assignment ...................................... 37
2.3.4 Pin Definition of NuDAM-6530 ......................................................... 38
2.3.5 NuDAM-6530 Functional Block Diagram ......................................... 38
Table of Concents • i
2.3.6 Setup .................................................................................................. 40
2.3.7 Installation ......................................................................................... 41
2.3.8 Programming ..................................................................................... 43
2.4 OVERVIEW OF NUDAM-6531 ............................................................. 44
2.4.1 Features of NuDAM-6531 ................................................................. 44
2.4.2 Specifications of NuDAM-6531 ......................................................... 45
2.4.3 A Look at NuDAM-6531 & Pin Assignment ...................................... 46
2.4.4 Pin Definition of NuDAM-6531 ......................................................... 47
2.4.5 NuDAM-6531 Functional Block Diagram ......................................... 48
2.4.6 Initialation & Installation .................................................................. 49
2.4.7 Install a New NuDAM-6531 to a Existing Network ........................... 51
ANALOG INPUT MODULES .......................................................................... 53
3.1 OVERVIEW OF NUDAM-6013 ............................................................. 53
3.1.1 Features of NuDAM-6013 ................................................................. 53
3.1.2 Specifications of NuDAM-6013 ......................................................... 53
3.1.3 A Look at NuDAM-6013 & Pin Assignment ...................................... 55
3.1.4 Pin Definition of NuDAM-6013 ......................................................... 56
3.1.5 NuDAM-6013 Functional Block Diagram ......................................... 56
3.2 OVERVIEW OF NUDAM-6017 ............................................................. 57
3.2.1 Features of NuDAM-6017 ................................................................. 57
3.2.2 Specifications of NuDAM-6017 ......................................................... 57
3.2.3 A Look at NuDAM-6017 & Pin Assignment ...................................... 59
3.2.4 Pin Definition of NuDAM-6017 ......................................................... 60
3.2.5 NuDAM6017 Functional Block Diagram .......................................... 60
3.3 OVERVIEW OF NUDAM-6018 ............................................................. 61
3.3.1 Features of NuDAM-6018 ................................................................. 61
3.3.2 Specifications of NuDAM-6018 ......................................................... 61
3.3.3 A Look at NuDAM-6018 & Pin Assignment ...................................... 63
3.3.4 Pin Definition of NuDAM-6018 ......................................................... 64
3.3.5 NuDAM-6018 Functional Block Diagram ......................................... 64
ANALOG OUTPUT MODULES ...................................................................... 65
4.1 OVERVIEW OF NUDAM-6021 ............................................................. 65
4.1.1 Features of NuDAM-6021 ................................................................. 65
4.1.2 Specifications of NuDAM-6021 ......................................................... 66
4.1.3 A Look at NuDAM-6021 & Pin Assignment ...................................... 67
4.1.4 Pin Definition of NuDAM-6021 ......................................................... 68
4.1.5 NuDAM-6021 Functional Block Diagram ......................................... 68
4.2 OVERVIEW OF NUDAM-6024 ............................................................. 69
ii • Table of Contents
4.2.1 Features of NuDAM-6024 ................................................................. 69
4.2.2 Specifications of NuDAM-6024 ......................................................... 69
4.2.3 A Look at NuDAM-6024 & Pin Assignment ...................................... 71
4.2.4 Pin Definitions of NuDAM-6024 ....................................................... 72
4.2.5 NuDAM-6024 Functional Block Diagram ......................................... 73
DIGITAL I/O MODULES ................................................................................. 74
ABOUT THE NUDAM DIO MODULES .............................................................. 74
5.1 OVERVIEW OF NUDAM-6050 ............................................................. 75
5.1.1 Features of NuDAM-6050 ................................................................. 75
5.1.2 Specifications of NuDAM-6050 ......................................................... 75
5.1.3 A Look at NuDAM-6050 & Pin Assignment ...................................... 77
5.1.4 Pin Definitions of NuDAM-6050 ....................................................... 78
5.1.5 NuDAM-6050 Functional Block Diagram ......................................... 79
5.2 OVERVIEW OF NUDAM-6052 ............................................................. 80
5.2.1 Features of NuDAM-6052 ................................................................. 80
5.2.2 Specifications of NuDAM-6052 ......................................................... 80
5.2.3 A Look at NuDAM-6052 & Pin Assignment ...................................... 81
5.2.4 Pin Definitions of NuDAM-6052 ....................................................... 82
5.2.5 NuDAM-6052 Functional Block Diagram ......................................... 83
5.3 OVERVIEW OF NUDAM-6053 ............................................................. 84
5.3.1 Features of NuDAM-6053 ................................................................. 84
5.3.2 Specifications of NuDAM-6053 ......................................................... 84
5.3.3 A Look at NuDAM-6053 & Pin Assignment ...................................... 85
5.3.4 Pin Definitions of NuDAM-6053 ....................................................... 86
5.3.5 NuDAM-6053 Functional Block Diagram ......................................... 87
5.4 OVERVIEW OF NUDAM-6054 ............................................................. 88
5.4.1 Features of NuDAM-6054 ................................................................. 88
5.4.2 Specifications of NuDAM-6054 ......................................................... 88
5.4.3 A Look at NuDAM-6054 & Pin Assignment ...................................... 90
5.4.4 Pin Definitions of NuDAM-6054 ....................................................... 91
5.4.5 NuDAM-6054 Functional Block Diagram ......................................... 92
5.5 OVERVIEW OF NUDAM-6056 ............................................................. 93
5.5.1 Features of NuDAM-6056 ................................................................. 93
5.5.2 Specifications of NuDAM-6056 ......................................................... 93
5.5.3 A Look at NuDAM-6056 & Pin Assignment ...................................... 95
5.5.4 Pin Definitions of NuDAM-6056 ....................................................... 96
5.5.5 NuDAM-6056 Functional Block Diagram ......................................... 97
5.6 OVERVIEW OF NUDAM-6058 ............................................................. 98
5.6.1 Features of NuDAM-6058 ................................................................. 98
Table of Concents • iii
5.6.2 Specifications of NuDAM-6058 ......................................................... 99
5.6.3 A Look at NuDAM-6058 & Pin Assignment .................................... 100
5.6.4 Pin Definitions of NuDAM-6058 ..................................................... 101
5.6.5 NuDAM-6058 Functional Block Diagram ....................................... 102
5.7 OVERVIEW OF NUDAM-6060 ........................................................... 103
5.7.1 Features of NuDAM-6060 ............................................................... 103
5.7.2 Specifications of NuDAM-6060 ....................................................... 103
5.7.3 A Look at NuDAM-6060 & Pin Assignment .................................... 105
5.7.4 Pin Definitions of NuDAM-6060 ..................................................... 106
5.7.5 NuDAM-6060 Functional Block Diagram ....................................... 107
5.8 OVERVIEW OF NUDAM-6063 ........................................................... 108
5.8.1 Features of NuDAM-6063 ............................................................... 108
5.8.2 Specifications of NuDAM-6063 ....................................................... 108
5.8.3 A Look at NuDAM-6063 & Pin Assignment .................................... 110
5.8.4 Pin Definitions of NuDAM-6063 ..................................................... 111
5.8.5 NuDAM-6063 Functional Block Diagram ....................................... 112
5.9 OVERVIEW OF NUDAM-6067 ........................................................... 113
5.9.1 Features of NuDAM-6067 ............................................................... 113
5.9.2 Specifications of NuDAM-6067 ....................................................... 113
5.9.3 A Look at NuDAM-6067 & Pin Assignment .................................... 115
5.9.4 Pin Definitions of NuDAM-6067 ..................................................... 116
5.9.5 NuDAM-6067 Functional Block Diagram ....................................... 117
5.10 OVERVIEW OF NUDAM-6080 ........................................................... 118
5.10.1 Features of NuDAM-6080 ............................................................. 119
5.10.2 Specifications of NuDAM-6080 ..................................................... 119
5.10.3
5.10.4 Pin Definitions of NuDAM-6080 ................................................... 122
5.10.5 NuDAM-6080 Functional Block Diagram ..................................... 123
A Look at NuDAM-6080 & Pin Assignment ............................... 121
COMMAND SET ............................................................................................. 124
6.1 COMMAND AND RESPONSE ................................................................ 124
6.1.1 Introduction ..................................................................................... 124
6.1.2 Format of NuDAM Commands ........................................................ 125
6.1.3 Response of NuDAM Commands ..................................................... 127
6.2 SUMMARY OF COMMAND SET ............................................................ 128
6.2.1 Set Configuration ............................................................................. 133
6.2.2 Read Configuration ......................................................................... 143
6.2.3 Read Module Name .......................................................................... 146
6.2.4 Read Firmware Version ................................................................... 147
iv • Table of Contents
6.2.5 Reset Status ...................................................................................... 148
6.2.6 Soft Reset ......................................................................................... 149
6.3.1 Read Analog Data............................................................................ 150
6.3.2 Offset Calibration to each Channel ................................................. 151
6.3.3 Span Calibration to each Channel................................................... 152
6.3.4 Read Analog Data From Channel N................................................ 153
6.3.5 Read All Analog Data Channel ....................................................... 154
6.3.6 Enable/Disable channels for Multiplexing ...................................... 155
6.3.7 Read Channel Status ........................................................................ 156
6.3.8 Read CJC Status .............................................................................. 157
6.3.9 Enable/Disable CJC ........................................................................ 158
6.3.10 Read enable/disable CJC Status .................................................... 159
6.3.11 CJC Offset Calibration .................................................................. 160
6.3.12 Span Calibration ............................................................................ 161
6.3.13 Offset Calibration .......................................................................... 162
6.4.1 Synchronized Sampling .................................................................... 163
6.4.2 Read Synchronized Data .................................................................. 164
6.4.3 Digital Input..................................................................................... 165
6.4.4 Analog Data Output ......................................................................... 166
6.4.5 4mA Offset Calibration .................................................................... 168
6.4.6 20mA Calibration ............................................................................ 169
6.4.7 Trim Calibration .............................................................................. 170
6.4.8 Last Value Readback ....................................................................... 171
6.4.9 Current Readback ............................................................................ 172
6.4.10 Save Power On Analog Output Value ............................................ 173
6.5.1 Synchronized Sampling .................................................................... 174
6.5.2 Read Synchronized Data .................................................................. 175
6.5.3 Digital Output .................................................................................. 178
6.5.4 Digital Input..................................................................................... 182
6.5.5 Programmable I/O Mode Setting ..................................................... 185
6.6.1 Set RTS Status .................................................................................. 187
6.6.2 Read RTS Status ............................................................................... 188
6.6.3 Read CTS Status .............................................................................. 189
6.6.4 Set Device ID ................................................................................... 190
6.6.5 Read Device ID ................................................................................ 191
6.6.6 Set Delimiter .................................................................................... 192
6.6.7 Read Delimiter ................................................................................. 193
6.6.8 Data Pass ......................................................................................... 194
6.6.9 Open/Close Data Gate ..................................................................... 195
6.7.1 Set Input Mode ................................................................................. 196
Table of Concents • v
6.7.2 Read Input Mode.............................................................................. 197
6.7.3 Read Counter/Frequency Value in HEX Format ............................. 198
6.7.4 Read Counter/Frequency Value in DEC Format ............................. 199
6.7.5 Set Gate Mode .................................................................................. 200
6.7.6 Read Gate Mode .............................................................................. 201
6.7.7 Set Maximum Counter Value ........................................................... 202
6.7.8 Read Maximum Counter Value ........................................................ 203
6.7.9 Set Initial Count Value ..................................................................... 204
6.7.10 Read Initial Count Value ............................................................... 205
6.7.11 Start/Stop Counter ......................................................................... 206
6.7.12 Read Start/Stop Counter Status ..................................................... 207
6.7.13 Clear Counter ................................................................................ 208
6.7.14 Read then Clear Overflow Flag ..................................................... 209
6.7.15 Enable/Disable Digital Filter ........................................................ 210
6.7.16 Read Filter Status .......................................................................... 211
6.7.17 Set Minimum Input Signal Width at High Level ............................ 212
6.7.18 Read Minimum Input Signal Width at High Level ......................... 213
6.7.19 Set Minimum Input Signal Width at Low Level ............................. 214
6.7.20 Read Minimum Input Signal Width at Low Level .......................... 215
6.7.21 Set TTL Input High Trigger Level .................................................. 216
6.7.22 Read TTL Input High Trigger Level .............................................. 217
6.7.23 Set TTL Input Low Trigger Level ................................................... 218
6.7.24 Read TTL Input Low Trigger Level ............................................... 219
6.7.25 Enable Alarm ................................................................................. 220
6.7.26 Disable Alarm ................................................................................ 221
6.7.27 Set Alarm Limit Value of Counter 0 ............................................... 222
6.7.28 Set Alarm Limit Value of Counter 1 ............................................... 223
6.7.29 Read Alarm Limit Value of Counter 0 ........................................... 224
6.7.30 Read Alarm Limit Value of Counter 1 ........................................... 225
6.7.31 Set Digital Output Values .............................................................. 226
6.7.32 Read Digital Output and Alarm Status .......................................... 227
6.8.1 Read Command Leading Code Setting ............................................ 229
6.8.2 Change Command Leading Code Setting ........................................ 230
6.8.3 Set Host Watchdog Timer & Safety Value ....................................... 232
6.8.4 Read Host Watchdog Timer & Safety Value .................................... 236
6.8.5 Change Polarity ............................................................................... 240
6.8.6 Read Polarity ................................................................................... 241
6.8.7 Host is OK........................................................................................ 242
INITIALIZATION & INSTALLATION ..................................................... 243
vi • Table of Contents
7.1 SOFTWARE INSTALLATION ................................................................. 243
7.2 INITIALIZING A BRAND-NEW MODULE .............................................. 243
Objective of Initializing a Brand-New NuDAM ........................................ 243
Default State ............................................................................................. 244
Initialization Equipments .......................................................................... 244
Initialization Procedure ............................................................................ 245
Initialization Wiring .................................................................................. 245
7.3 INSTALL A NEW NUDAM TO A EXISTING NETWORK ......................... 245
Equipments for Install a New Module ...................................................... 245
Installing Procedures ................................................................................ 245
7.4 APPLICATION WIRING FOR NUDAM ................................................. 246
7.4.1 Differential Voltage Input ................................................................ 246
7.4.2 Single Ended Voltage Input ............................................................. 247
7.4.3 Current Measurement ...................................................................... 247
7.4.4 Differential Current Outpu .............................................................. 247
7.4.5 RTD Input ........................................................................................ 248
7.4.6 Differential Voltage Output ............................................................. 249
7.4.7 Digital Input onnect with TTL Signal .............................................. 249
7.4.8 Digital Input Connect with Switch or Push Button .......................... 249
7.4.9 Digital Output Connect with Power Loading .................................. 250
7.4.10 Isolated Differential Input ............................................................. 250
7.4.11 Isolated Single Ended Input ........................................................... 250
7.4.12 Wet Contact Input .......................................................................... 251
7.4.13 Contact Closure Input .................................................................... 251
7.4.14 Isolated Differential Input with External 24V power..................... 251
7.4.15 Isolated Common Ground Output ................................................. 252
7.4.16Thermocouple Input Measurement ................................................. 252
7.4.17 Form C Relay Output ..................................................................... 252
7.4.18 Form A Relay Output ..................................................................... 253
7.4.19 Discrete Input: Contact Mode ....................................................... 253
7.4.20 Discrete Input: Transistor Mode ................................................... 253
ANALOG MODULES DATA FORMAT ..................................................... 254
UNIT CONVERSION ........................................................................................ 254
8.1 Engineering Units ............................................................................... 254
8.2 Percent of FSR (Full Scale Range) ..................................................... 258
8.3 Hexadecimal or Two’s Complement Hexadecimal ............................. 261
8.4 Ohm .................................................................................................... 263
CALIBRATION .............................................................................................. 264
Table of Concents • vii
9.1 HOW TO CALIBRATE THE ANALOG INPUT MODULES ? ....................... 264
Calibration Procedure for ND-6017 ........................................................ 264
Calibration Procedure for ND-6013 Firmware Rev A3.05 ...................... 265
Calibration Procedure for ND-6013 Firmware Rev C4.60 ...................... 266
Calibration Procedure for ND-6018 Firmware Rev B1.10 ...................... 266
Calibration Procedure for ND-6018 Firmware Rev E1.00 ...................... 266
CJC Calibration Procedure ...................................................................... 267
Analog Input Module‘s Calibration Voltages ........................................... 268
9.2 HOW TO CALIBRATE THE ANALOG OUTPUT MODULES ? ................... 270
APPENDIX...................................................................................................... 272
APPLICATION NOTE ....................................................................................... 272
SOFTWARE UTILITY ....................................................................................... 274
1.Software Installation .............................................................................. 274
2.How to Execute the NuDAM Administration ......................................... 274
3.NuDAM Administration Function Overview ......................................... 274
3.1 Change RS-232 Communication Port Setting. ................................... 275
3.2 Search all exist Nudam modules ......................................................... 276
3.3 Using Operations ................................................................................ 277
3.4 Save and Print Nudam modules’ information ..................................... 281
3.5 Version Information ............................................................................ 282
PRODUCT WARRANTY/SERVICE ........................................................... 283
viii • Table of Contents
Table of Figure
Figure 1-1 Simple Topology ...................................................................... 15
Figure 1-2 Branch Topology ..................................................................... 16
Figure 1-3 Free Topology ......................................................................... 17
Figure 1-4 Terminator Connection ........................................................... 18
Figure 2-1 NuDAM-6520 profile .............................................................. 22
Figure 2-2 Connection Between Host and NuDAM-6520......................... 24
Figure 2-3 RS-422 Application Wiring ..................................................... 24
Figure 2-4 RS-485 Application Wiring ..................................................... 25
Figure 2-6 NuDAM-6510 profile .............................................................. 30
Figure 2-7 Block Diagram of NuDAM-6510 ............................................ 31
Figure 2-8 NuDAM-6530 profile .............................................................. 37
Figure 2-9 Block Diagram of NuDAM-6530 ............................................ 38
Figure 2-10 NuDAM-6531 profile ............................................................ 46
Figure 2-11 Block Diagram of NuDAM-6531 .......................................... 48
Figure 3-1 NuDAM-6013 profile .............................................................. 55
Figure 3-2 Block Diagram of NuDAM-6013 ............................................ 56
Figure 3-3 NuDAM-6017 profile .............................................................. 59
Figure 3-4 Block Diagram of NuDAM-6017 ............................................ 60
Figure 3-5 NuDAM-6018 profile .............................................................. 63
Figure 3-6 Block Diagram of NuDAM-6018 ............................................ 64
Figure 4-1 NuDAM-6021 profile .............................................................. 67
Figure 4-2 Block Diagram of NuDAM-6021 ............................................ 68
Figure 4-3 NuDAM-6024 profile .............................................................. 71
Figure 4-4 Block Diagram of NuDAM-6024 ............................................ 73
Figure 5-1 NuDAM-6050 profile .............................................................. 77
Figure 5-2 Block Diagram of NuDAM-6050 ............................................ 79
Figure 5-3 NuDAM-6052 profile .............................................................. 81
Figure 5-4 Block Diagram of NuDAM-6052 ............................................ 83
Figure 5-5 NuDAM-6053 profile .............................................................. 85
Figure 5-6 Block Diagram of NuDAM-6053 ............................................ 87
Figure 5-7 NuDAM-6054 profile .............................................................. 90
Figure 5-8 Block Diagram of NuDAM-6054 ............................................ 92
Figure 5-9 NuDAM-6056 profile .............................................................. 95
Table of Concents • ix
Figure 5-10 Block Diagram of NuDAM-6056 .......................................... 97
Figure 5-11 NuDAM-6058 profile .......................................................... 100
Figure 5-12 Block Diagram of NuDAM-6058 ........................................ 102
Figure 5-13 ND-6060 profile .................................................................. 105
Figure 5-14 Block Diagram of NuDAM-6060 ........................................ 107
Figure 5-15 NuDAM-6063 profile .......................................................... 110
Figure 5-16 Block Diagram of NuDAM-6063 ........................................ 112
Figure 5-17 NuDAM-6067 profile .......................................................... 115
Figure 5-18 Block Diagram of NuDAM-6067 ........................................ 117
Figure 5-19 NuDAM-6080 profile .......................................................... 121
Figure 5-20 Block Diagram of NuDAM-6080 ........................................ 123
Figure 6-1 Data Format Setting of ND-601x .......................................... 139
Figure 6-2 Data format of ND-602x ....................................................... 140
Figure 6-3 Check sum flag setting of 605x ............................................. 141
Figure 6-4 Check sum flag setting of 6080 ............................................. 141
Figure 6-5 Response of check sum flag ................................................... 145
Figure 7-1 Layout for Initialization the NuDAM module ...................... 245
Figure A-1. ND-60xx Default Setting External Connection .................... 273
Figure A-2 Terminator Connection......................................................... 273
x • Table of Contents
1
Introduction
1.1 What is NuDAM ?
NuDAM is a series of data acquisition modules.
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.
11
It provides a total solution of
1.2 Outstanding Features of NuDAM
Industry standard networking
z
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
z
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.
High transfer speed
z
NuDAM modules provide up to 115.2K bps data / command transfer rate. It can
promote system bandwidth.
Simple command / response protocol
z
All communications are performed with printable ASCII characters. This allows
the information to be processed with string functions common to the most
high-level languages.
Industrial design
z
The screw terminal plug connectors on every NuDAM module ensures simple
installation and easy modification. The compact size allows the modules to be
mounted on DIN rail, back-panel wall-mount, etc.
Watch-dog supervisory
z
NuDAM contains a watch-dog supervisory circuitry that will automatically reset
the module when the system fails. In addition, a user-programmable software
timer provides a ‘safe’ output signal in the event of host computer failure.
High isolation voltage
z
NuDAM provides photo-isolators, which ensure high isolation voltage, between
the data acquisition circuits and the communication port. The fatal
electric-shock won‘t go through and damage all the modules on the network.
Noise immunity
z
The NuDAM provide extra noise immunity capability. An electrode, which is
coated inside the ABS case, can reduce electro-magnetic interference (EMI)
and noise.
12
Harsh environmental protection
z
A surface coating covers on the PCB and electronic components of the NuDAM.
It allows superior resistance to harsh environment such as humidity, salt spry
and most harsh chemicals.
1.3 NuDAM-6000 series products overview
The NuDAM-6000 series provides the complete sets of data acquisition modules,
including the communication modules, the analog input modules, the analog
output modules, and the digital I/O modules.
Communication Module
♦ ND-6510 : RS-422/RS-485 Repeater
♦ ND-6520 : RS-232 to RS-422/RS-485 Converter
♦ ND-6530 : USB to RS-422/RS-485 Converter
♦ ND-6531 : Addressable RS-422/RS-485 to RS-232 Converter
Analog Input Modules
♦ ND-6013 : 3-channel RTD Input Module
♦ ND-6017 : 8-channel Analog Input Module
♦ ND-6018 : 8-channel Thermocouple Input Module
Analog Output Modules
♦ ND-6021 : Single Channel Analog Output Module
♦ ND-6024 : 4-channel Analog Output Module with 7 DI channels
Digital I/O Modules
♦ ND-6050 : Module with 7 DI channels and 8 DO channels
♦ ND-6052 : 8-channel Isolated Input Module
♦ ND-6053 : 16-channel Digital Input Module
♦ ND-6054 : 15-channel Isolated Input Module
♦ ND-6056 : 15-channel Isolated Output Module
♦ ND-6058 : 28-channel Programable Digital I/O Module
♦ ND-6060 : 4-channel Relay Output & Isolated Input Module
♦ ND-6063 : 8-channel Relay Output Module
♦ ND-6067 : 8-channel AC Relay Output Module
♦ ND-6080 : 2-channel Counter/Frequency Input Module
13
1.4 EIA RS-485 Standard
The EIA RS-485 interface is a communication standard developed for
multi-dropped systems that can communicate at high rate over long distance.
The standard RS-485 can operate at speed up to 10 M bps over cable length up
to 4000 feet.
The RS-485 interface can support up to 32 drivers / receivers on the same line.
This allows actual networking applications on a parity line system (sometimes
called multi-drop).
The RS-485 uses differential transmission on a balance line. Its easy wiring
make it popular to use in industrial applications.
1.5 RS-485 on NuDAM
The NuDAM improves the RS-485 capability for minimizing the user‘s cost. On
each NuDAM module, a half-duplex RS-485 transceiver is used to communicate
with other modules. A single twisted pair of wires, which provides standard
differential transmission, is used to transmit and receive data between modules.
The high input impedance of each NuDAM receiver allows up to 128 NuDAM
modules on the same RS-485 bus without using a signal repeater.
The maximum transfer rate of NuDAM is 115.2Kbps which is lower than the
maximum speed of the RS-485 standard. The slew-rate limiter on every RS-485
transceiver of NuDAM is very useful for transmitting error-free data, minimizing
EMI, and reducing reflections caused by improperly terminated cables.
The NuDAM on a network may not use the same power supply. Therefore, the
voltage difference between ground of the modules may exist.
Excessive output current and power dissipation caused by faults or by bus
contention are prevented by the current limiter and the thermal shutdown
circuitry inside the NuDAM.
14
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r
1.6 NuDAM RS-485 Network Configurations
NuDAM-6000 series is designed under RS-485 multi-drop network architecture.
256
Up to
of 256 is due to command code. The network can be connected by simple
topology (Figure 1-1) or branch topology (Figure 1-2) or free topology (Figure
1-3).
The ND-6520 and ND-6510 are the two basic communication modules to
construct a RS-485 network. The ND-6520 is a RS-232 to RS-485/RS-422
converter. The ND-6520 is used to build a RS-485 port for the host computer by
converting standard RS-232 signal into RS-485 signal.
The ND-6510 is the RS-485 signal repeater which is used to extend or to
lengthen the network distance. A NuDAM bus can connect up to
each segment is up to 128 modules. Whenever the numbers of the modules
excess 128, the repeater should be used. In addition, the length of a standard
RS-485 bus is up to 4000 feet, the repeater should be used whenever the length
of a signal bus is more than 4000 feet.
The ND-6530 is the USB to RS-485/RS-422/RS-232 converter, and it is used to
build the USB signal into RS-485/RS-422/RS-232 signal.
The ND-6531 is an addressable RS-485/RS-422 to RS-232 converter, it allows
the RS-232 devices easily link to Host by the RS-485/422 bus.
NuDAM modules can be controlled in a multi-drop network. The limit
256
modules,
Host
RS-232
ND-6520/ND-6530
RS-485 bus
NuDAM Modules
ND-6531
erminato
Figure 1-1 Simple Topology
15
T
r
Host
RS-232
ND-6510
Repeater
NuDAM Modules
ND-6520/ND-6530
RS-485 bus
RS-485 bus
ND-6521
erminato
Figure 1-2 Branch Topology
16
T
r
T
r
T
r
ND-6520/ND-6530
Host
ND-6510
Repeater
ND-6531
RS-485 bus
NuDAM Modules
ND-6510
Repeater
erminato
erminato
NuDAM I/O
modules
NuDAM I/O modules
Figure 1-3 Free Topology
erminato
17
1.7 Constructing a NuDAM Network
Go through the following steps, the user can construct a NuDAM network easily.
1. Setup a ND-6520 or ND-6530.
2. Connect the host computer with the ND-6520 or ND-6530.
3. Setup one or more ND-6510 if necessary.
4. Connect the ND-6510 to extend to RS-485 bus if necessary.
5. Install the NuDAM utility software or ND-6530 driver from disk.
6. Initialize the brand-new NuDAM modules.
7. Add the new NuDAM modules into RS-485 network.
1.8 Termination Bus
In order to avoid signal reflections on the bus, each bus segment has to be
blanked off at its physical beginning and at its end with the characteristic
impedance. An termination resister ( Rt) is intalled for this purpose. The Rt value
120Ω ± 2%
from the “Terminator Connection” diagram below.
is recommended, and the detailed connection of Rt can be referred
Host
Data+
120 ohms
Data-
Terminator Connec tion
Data+
120 ohms
Data-
Figure 1-4 Terminator Connection
18
1.9. Shielding
In case of increased interference, a shielded bus cables is recommended to use
for wiring between module and modules. In addition, a shielding also should be
done for the cable of power supply and for the signal cables.
Some experiences and recommendations are concerning for shield connection.
1. The shield should be connected with protective earthing at each bus
connection.
2. The shield should be applied additionally several times along the course of the
cable.
3. The Computer should be applied the shield directly to the appliance or to
separate shield rails.
braided shield
Earthing Point
Isolation
RS-485 Connection Cable
DATA+
DATA -
NuDAM Module
19
2
Communication Module
2.1 Overview of ND-6520
ND-6520 is a RS-232 to RS-422/RS-485 converter, it converts the RS-232
signal to the RS-422/RS-485 signals. The ND-6520 can be considered as an
extension RS-422/RS-485 serial port for the host computer. A standard 9-pin
D-type connector is used to connect the host computer and the ND-6520.
Hence, the ND-6520 can connect with all kinds the PC, IPC or Notebook PC,
which install a standard RS-232 interface.
2.1.1 Features of ND-6520
RS-422/RS-485 transceiver
z
Differenial 4-wire full-duplex RS-422
z
Differenial 2-wire half-duplex RS-485
z
Easily setup and installation
z
Auto direction flow control
z
Maximum 128 modules on a bus without using repeaters
z
Maximum 256 addressable modules.
z
High transfer speed
z
20
High isolation voltage
z
Lower power consumption
z
2.1.2 Specifications of ND-6520
Input
♦ Interface : standard RS-232 9 pin female D-type connector
♦ Speed (bps) : 1200, 2400, 4800, 9600, 19.2K, 38.4K, 57.6K, 115.2K
♦ Data Format
Data bits : 5 bits, 6 bits, 7 bits, or 8 bits
Stop bits: 1, 2
Parity type: None, Even, Odd
Output
* :
♦ Interface :RS-485, differential, 2 half-duplex wires RS-422, differential,
4 full-duplex wires
♦ Speed (bps) : The same with input speed.
♦ Max RS-485 network bus distance : 4000 feet. (1200 meter)
Isolation
♦ Isolation voltage : 2500 Vrms(between RS-422/RS-485 network and
host computer)
Bus
♦ Max loading : 128 modules on a RS-485 network
♦ Max modules : 256 modules with one ND-6510 repeater
Power
♦ Power Supply : +10V to +30V
♦ Power Consumption : 0.912 W
Note* : It supports auto baudrate and parity, data bits adjustment.
21
N
(
)
2.1.3 A Look at ND-6520 & Pin Assignment
(RS-232 IN)
RS-232 to RS-485
D-6520
/RS-422Converter
DATA+
Y
(G)DATA-
TX-
TX+
RX+
TX-
(B)GND
(R)+Vs
Figure 2-1 ND-6520 profile
22
2.1.4 Pin Definition of ND-6520
Pin # Signal Name Description
1 (Y)DATA+ RS-485 transmission line, positive
2 (G)DATA- RS-485 transmission line, negative
4 TX+ RS-422 transmission line, positive
5 TX- RS-422 transmission line, negative
6 RX+ RS-422 receiving line, positive
7 RX- RS-422 receiving line, negative
9 (R)+VS NuDAM power supply, +10V~+30V
10 (B)GND NuDAM Ground
D type 9 Pin Connecter Definition of ND-6520
Pin # Signal Name Description
2 RXD RS-232 receiving line
3 TXD RS-232 transmission line
5 GND RS-232 Common Ground
23
r
Connection Between Host and ND-6520
Host RS-232
GND r
TXD p
RXD o
Host
Computer
RS-232
Figure 2-2 Connection Between Host and ND-6520
RS-422 Application Wiring
ND-6520 RS-232
rGND
pTXD
oRXD
DATA +
DATA -
+Vs GND
ND-6520
RS-232 to RS-485/
RS-422 converte
TX+
TX-
RX+
RX-
Figure 2-3 RS-422 Application Wiring
24
RX+
RX-
TX+
TX-
RS-422 Device
p
VS
RS-485 Application Wiring
DATA+
DATA-
RS-485 Device
DATA+
DATA-
Figure 2-4 RS-485 Application Wiring
2.1.5 ND-6520 Functional Block Diagram
+5V
Power Regulator
& Filter
Power Input
+10V ~ +30V
GND
DC to DC
Converter
SW1
TXD
RXD
RTS
RS-232
Receiver
/ Driver
Communication
Switchin g
Controller
GND
Opto-Isolation
Communication
Direction Control
.....
RS-485 Device
RS-422/RS-485
Receiver/Driver
DATA+
.....
DATA-
Isolation +5V
Isolation GND
T
PTC
Data+
Data-
Rx+
RxTx+
Tx-
TVS : Transient Voltage Suppresser
PTC : Positive Tem
erature Coefficie nt
Figure 2-5 Block Diagram of ND-6520
25
2.1.6 Setup
Objective of Setup
In normal condition, it is not necessary to setup the ND-6520. The default
configuration of this communication module is 9600 bps and data format of 8
data bits with 1 start bit, 1 stop bit, and no parity check. Note that the data format
is reserved to be compatible with other brand‘s communication port, it should not
be modified if only NuDAM is used in a system. The baud rate can be
configured according applications’ requirement.
Setup Equipments
Only screw driver is used to open the case. Software, power supply, and wiring
are not necessary.
Setup Procedure
Only hardware switch setting can be setup in ND-6520. The user can set the
speed of the serial interface ( RS-232 and RS-422/RS-485 ), and the serial data
format. The speed and the data format on the whole RS-485 network must be
identical otherwise the communication will be not correct.
To setup the ND-6520, using the screw driver to open the case, then change the
switch setting. The new setting is valid after power on. The case must be put
back and locked carefully. Be careful not to scratch the surface of the circuit
while setting up, the surface coating or even the circuits will be damaged.
Default Setting
♦ 9600 baud rate
♦ 10 bits series data format : one start bit, eight data bits, one stop bit, no
parity check
26
r
2.1.7 Installation
Software Utility
Software is not necessary for this module.
Equipments for Installation
A host computer with RS-232 port
RS-232 cable (DB-9 female)
DC Power supply (+10V~+30V)
Wires (shielded and grounded is recommended)
Installation Procedure
1. Make sure the host computer is power off.
2. Use RS-232 cable to connect ND-6520 with host computer.
3. Wire the power supply to NuDAMs.Note that the power supply should meet
the specification.
4. Wire other NuDAMs.
Application Wiring
Host
Computer
RS-232
ND-6520
RS-232 to RS-485/
RS-422 converte
DATA +
DATA -
+Vs GND
NuDAM
module
+ DATA
- DATA
+Vs GND
Local Power Supply
+10 V to +30 V
+Vs GND
Figure 2-6 Application wiring of NuDAM-6520
2.1.8 Programming
The ND-6520 is a communication module, it is not necessary to do any
programming.
27
2.2 Overview of ND-6510
The ND-6510 is the RS-422/RS-485 signal repeater which is used to extend or
to lengthen the network distance. A NuDAM bus can connect up to 128 modules.
The repeater should be used when the numbers of the modules exceed 128. In
addition, the repeater should also be used when the length of a signal bus is
more than 4000 feet.
2.2.1 Features of ND-6510
z RS-422/RS-485 signal transceiver & repeater
z Bi-directions signal transmission for both RS-422/RS-485 ports
z Automatic transmission direction control
z Easy setup and installation
z Maximum 128 modules on a bus
z Maximum 256 addressable modules
z High transfer speed
z Surge protection
z Lower power consumption
2.2.2 Specifications of ND-6510
Input / Output
♦ Interface : RS-485, differential, 2 half-duplex wires.
RS-422, differential, 4 full-duplex wires
♦ Speed (bps) : 1200, 2400, 4800, 9600, 19.2K, 38.4K, 57.6K, 115.2K
♦ Data Format* :
Data bits : 5 bits, 6 bits, 7 bits, or 8 bits
Stop bits: 1, 2
Parity type: None, Even, Odd
♦ Max RS-485 network bus distance : 4000 feet. (1200 meter)
Note*: It is auto baudrate and parity, data bits adjust.
Bus
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