ADLINK ND-6520 User Manual

®

NuDAM

ND-6520 RS-232 to RS-422/RS-485 Converter

ND-6510 RS-422/RS-485 Repeater

ND-6530 USB to RS-485/RS-422/RS-232 Converter

ND-6521 Addressable RS-422/RS-485 to RS-232 Converter

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

Chapter 1 Introduction ....................................................... 1

1.1 WHAT IS NUDAM ?...............................................................................1

1.2 OUTSTANDING FEATURES OF NUDAM..................................................2

1.3 NUDAM-6000 SERIES PRODUCTS OVERVIEW ........................................3

1.4 EIA RS-485 STANDARD ........................................................................4

1.5 RS-485 ON NUDAM .............................................................................4

1.6 NUDAM RS-485 NETWORK CONFIGURATIONS.....................................5

1.7 CONSTRUCTING A NUDAM NETWORK..................................................8

1.8 TERMINATION BUS ................................................................................8

1.9. SHIELDING .............................................................................................9

1.10. HOW TO CALCULATE CHECKSUM VALUE ............................................10

Chapter 2 NuDAM-6520 ....................................................11

2.1. OVERVIEW...........................................................................................11

2.2 SETUP ..................................................................................................16

2.3. INSTALLATION .....................................................................................18

2.4 PROGRAMMING....................................................................................19

Chapter 3 NuDAM-6510 .................................................... 20

3.1. OVERVIEW...........................................................................................20

3.2. SETUP ..................................................................................................24

3.3 INSTALLATION .....................................................................................26

3.4 PROGRAMMING....................................................................................27

Chapter 4 NuDAM-6530 .................................................... 28

4.1. OVERVIEW...........................................................................................28

4.2 SETUP ..................................................................................................33

4.3 INSTALLATION .....................................................................................35

4.4 PROGRAMMING....................................................................................45

Chapter 5 NuDAM-6521 .................................................... 46

5.1. OVERVIEW...........................................................................................46

5.2 INITIALATION & INSTALLATION...........................................................51

5.3. INSTALL A NEW NUDAM-6521 TO A EXISTING NETWORK .................53

5.4 COMMAND SET ....................................................................................54

Table of Concents • i

5.4.1 Command and Response....................................................................54

5.4.2 Summary of Command Set.................................................................56

5.4.3 Set Configuration...............................................................................57

5.4.4 Read Configuration ...........................................................................60

5.4.5 Read Module Name............................................................................60

5.4.6 Read Firmware Version.....................................................................62

5.4.7 Soft Reset ...........................................................................................63

5.4.8 Reset Status........................................................................................64

5.4.9 Set RTS Status....................................................................................65

5.4.10 Read RTS Status...............................................................................66

5.4.11 Read CTS Status ..............................................................................67

5.4.12 Set Device ID ...................................................................................68

5.4.13 Read Device ID................................................................................69

5.4.14 Set Delimiter ....................................................................................70

5.4.15 Read Delimiter.................................................................................71

5.4.16 Data Pass.........................................................................................72

5.4.17 Open/Close Data Gate.....................................................................73

5.4.18 Read Command Leading Code Setting .......................................74

5.4.19 Change Command Leading Code Setting........................................75

5.4.20 Set Host Watchdog Timer ................................................................77

5.4.21 Read Host Watchdog Timer.............................................................78

5.4.22 Host is OK........................................................................................79

Chapter 6 Software Utility ................................................ 80

6.1 SOFTWARE INSTALLATION...................................................................80

6.2 HOW TO EXECUTE THE NUDAM ADMINISTRATION ............................80

6.3 NUDAM ADMINISTRATION FUNCTION OVERVIEW..............................81

6.3.1 Change RS-232 Communication Port Setting. .................................81

6.3.2 Search all exist Nudam modules........................................................82

6.3.3 Using Operations...............................................................................83

6.3.4 Save and Print Nudam modules’ information....................................87

6.3.5 Version Information...........................................................................88

TROUBLESHOOTING AND MAINTENANCE..........................................89

PRODUCT WARRANTY/SERVICE.................ERROR! BOOKMARK NOT

DEFINED.

ii • Table of Contents

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.

Introduction • 1

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.

Harsh environmental protection

z

2 • Introduction

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

♦ NuDAM-6510 : RS-422/RS-485 Repeater
♦ NuDAM-6520 : RS-232 to RS-422/RS-485 Converter
♦ NuDAM-6530 : USB to RS-422/RS-485 Converter
♦ NuDAM-6521 : Addressable RS-422/RS-485 to RS-232 Converter

 Analog Input Modules

♦ NuDAM-6011: Multifunction High Gain Analog Input Module(with

DI/O)

♦ NuDAM-6011D: Multifunction High Gain Analog Input with 5 ½ digit

LED Display(with DI/O)

♦ NuDAM-6012: Analog Input Module(with DI/O)
♦ NuDAM-6012D: Analog Input Module with 5 1/2 digit LED Display(with

DI/O)

♦ NuDAM-6013: 3-channel RTD Input Module
♦ NuDAM-6014D: Analog (Transmitter) Input Module with 5 1/2digit

LED Display

♦ NuDAM-6017: 8-channel Analog Input Module
♦ NuDAM-6018: 8-channel Thermocouple Input Module

 Analog Output Modules

♦ NuDAM-6021: Single Channel Analog Output Module
♦ NuDAM-6024: 4-channel Analog Output Module(with DI)

 Digital I/O Modules

♦ NuDAM-6050 : Module with 7 DI channels and 8 DO channels
♦ NuDAM-6052 : Isolated Digital Input Module
♦ NuDAM-6053 : 16-channel digital Input Module
♦ NuDAM-6054 : 15-channel digital Input Module
♦ NuDAM-6056 : 15-channel digital Output Module
♦ NuDAM-6058 : 28-channel programable digital I/O Module
♦ NuDAM-6060 : 4-channel Relay Output & Digital Input Module

Introduction • 3

♦ NuDAM-6063 : 8-channel Relay Output Module
♦ NuDAM-6080 : Counter/Frequency Input Module

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.

4 • Introduction

1.6 NuDAM RS-485 Network Configurations

T

r

NuDAM-6000 series is designed under RS-485 multi-drop network architecture.
Up to 256 NuDAM modules can be controlled in a multi-drop network. The limit
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 256 modules,
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 used to
build the USB signal into RS-485/RS-422/RS-232 signal.

The ND-6521 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.

Host

RS-232

NuDAM Modules

ND-6520: RS-232 to

ND-6520
RS-485/RS-422

RS-232/RS-485
ND-6530: USB to

Converter
RS-232/RS485/RS-422

Converter.

RS-485 bus

Converter

erminato

ND-6521

Figure 1-1 Simple Topology

ND-6520: RS-232 to
RS-485/RS-422
ND-6530: USB to
RS-232/RS485/RS-422
Converter.

Converter

Introduction • 5

T

r

Host

RS-232

ND-6510
Repeater

RS-485 bus

RS-485 bus

erminato

NuDAM Modules

ND-6521

6 • Introduction

Figure 1-2 Branch Topology

ND-6520: RS-232 to

T

r

T

r

T

r

Host

ND-6510

Repeater

RS-485/RS-422
ND-6530: USB to
RS-232/RS485/RS-422
Converter.

RS-485 bus

ND-6521

Converter

NuDAM Modules

ND-6510
Repeater

erminato

erminato

NuDAM I/O

modules

NuDAM I/O modules

Figure 1-3 Free Topology

erminato

Introduction • 7

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.

Refer to chapter 2 and chapter 4 for executing step 1 and 2. Refer to chapter 3
for executing step 3, 4 and for understanding the time to install ND-6510. The
knowledge about the software for operating the NuDAM is in chapter 6. For
executing the step 6 and step 7, please refer to the install procedures of each
module and chapter 6.

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% is recommended, and the detailed connection of Rt can be referred
from the “Terminator Connection” diagram below.

8 • Introduction

Host

Data+

Data-

120 ohms

Data+

Data-

Terminator Connection

120 ohms

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

RS-485 Connection Cable

Earthing Point

DATA+

DATA -

Isolation

NuDAM Module

Introduction • 9

1.10. How to Calculate Checksum Value

Format of NuDAM Commands

(LeadingCode)(Addr)(Command)(Data)

When checksum is enable then [Checksum] is needed, it is 2-character.

[Checksum] =

Example 1: checksum is

Example 2: checksum is

B7 = (

0x24 + 0x30 + 0x31 + 0x32

AC= (

0x24+ 0x30+ 0x31+ 0x34+ 0x30+ 0x30+ 0x36+ 0x30+ 0x30)

(LeadingCode)+(Addr)+(Command)+(Data)

(

disable

User Command : $012<CR>

Response : !01400600

enable

User Command :

Response :

‘$’ = 0x24 ‘0’ = 0x30 ‘1’ = 0x31 ‘2’ = 0x30

‘!’ = 0x24 ‘0’ = 0x30 ‘1’ = 0x31 ‘4’ = 0x34

‘6’ = 0x36

[Checksum]

$012B7<CR>

!01400600AC

) MOD 0x100

<CR>

) MOD 0x100

MOD 0x100

10 • Introduction

2

NuDAM-6520

2.1. Overview

What is NuDAM-6520 ?

NuDAM-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.

 Features of NuDAM-6520

♦ RS-422/RS-485 transceiver
♦ Differenial 2-wire half-duplex RS-485
♦ Easily setup and installation
♦ Auto direction flow control
♦ Maximum 128 NuDAM on a bus without using repeaters
♦ Maximum 256 addressable NuDAM modules
♦ High transfer speed
♦ High isolation voltage
♦ Lower power consumption

NuDAM-6520 • 11

Specifications of NuDAM-6520

 Input

♦ Interface : standard RS-232 9 pin female D-type connector
♦ Speed (bps) : 1200(115.2K

1

), 2400, 4800, 9600, 19.2K, 38.4K, RTS

♦ Data Format : 9 bits, 10 bits, 11 bits, or 12 bits

 Output

♦ Interface :RS-485, differential, 2 half-duplex wires RS-422, differential,

4 full-duplex wires

♦ Speed (bps) : 1200(115.2K

1

), 2400, 4800, 9600, 19.2K, 38.4K, RTS

♦ Max RS-485 network bus distance : 4000 ft. (1200m)

 Isolation

♦ Isolation voltage : 5000 Vrms(between RS-422/RS-485 network and

host computer)

 Bus

♦ Max loading : 128 NuDAMs on a RS-485 network
♦ Max modules : 256 NuDAMs with one ND-6510 repeater

 Power

♦ Power Supply : +10V to +30V
♦ Power Consumption : 0.95 W

Note 1: 115.2K is supported by Firmware version A1.2 or later.

12 • NuDAM-6520

A Look at NuDAM-6520 & Pin Assignment

(

)

N

(Y) DATA+

)

bp

bp

RS-232 IN

RS-232 to RS-485

D-6520

Switch Position

SW1: ON
SW2: ON
SW3: ON
SW4: ON

SW5: ON
SW6: ON

SW7: ON

/RS-422Converter

Baud Rate

RTS CTRL

115.2K bps
2400

s

4800 bps

9600 bps

19.2K bps

38.4K

s

DATA­G

TX-

TX+

RX+

TX-

(B)GND

(R)+Vs

NuDAM-6520 • 13

Pin Definitions

r

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

-- RS-232 IN 9-pin RS-232 connector

Connection Between Host and ND-6520

Host RS-232

RTS t

GND r

TXD p

RXD o

Host

Computer

RS-232

ND-6520 RS-232

i RTS
g GND
e TXD
d RXD

NuDAM-6520

RS-232/RS-485
Converte

DATA +
DATA -

+Vs GND

14 • NuDAM-6520

Functional Block Diagram

r

r

r

p

VS

Power Regulato
& Filte

Power Input
+10V ~ +30V

+5V

GND

Isolation +5V

Isolation GND

DC to DC
Converte

TXD

RXD

RTS

RS-232
Receiver
/ Driver

GND

Opto-Isolation

TVS : Transient Voltage Suppresser
PTC : Positive Tem

SW1

Communication
Switching
Controller

Communication

Direction Control

erature Coefficient

T

RS-422/RS-485

Receiver/Driver

PTC

Data+

Data-

Rx+

Rx-

Tx+

Tx-

NuDAM-6520 • 15

2.2 Setup

Objective of Setup

In normal condition, it is not necessary to setup the NuDAM-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
identity otherwise the communication will be not correct.

To setup the ND-6520, use the screw driver to open the case, then change the
switch setting. The new setting is available after power on. The case must be
put back and locked carefully. Note that do not scratch the surface of the circuit
while setting up, otherwise the surface coating or even the circuits will be
damaged.

(Note: For Harware Rev.C1 or upper, there is switchless for

Baudrate adjust. It is auto baudrate and parity, data bits
adjust.)

Default Setting

♦ 9600 baud rate
♦ 10 bits series data format : one start bit, eight data bits, one stop bit,

no parity check

16 • NuDAM-6520

SW1 Setting

g (

)

p

SW 1 D efault S e ttin

ON

1 2 3 4 5 6 7

OFF

9600 bps

1 2 3 4 5 6 7 Baud Rate
ON OFF OFF OFF OFF OFF OFF RTS Control
OFF ON OFF OFF OFF OFF OFF 1200 or 115.2k1 bps
OFF OFF ON OFF OFF OFF OFF 2400 bps
OFF OFF OFF ON OFF OFF OFF 4800 bps
OFF OFF OFF OFF ON OFF OFF 9600 bps
OFF OFF OFF OFF OFF ON OFF 19200 bps
OFF OFF OFF OFF OFF OFF ON 38400 bps

Note 1: 115.2kbps is supported by version A1.2 or later.

SW2 Setting

ON

12

S W 2 D e fa u lt Settin g

S tart B its : 1

Data Bits : 8

Sto

Bits : 1

P arity : N o n e

1 2 Start Bit Data Bits Stop Bit Parity Packet Data Bits

1 7 1 0 OFF OFF

9
1 6 1 1
1 8 1 0 OFF ON

10
1 7 1 1
1 9 1 0 ON OFF

11
1 8 1 1
1 10 1 0 ON ON

12
1 9 1 1

NuDAM-6520 • 17

2.3. Installation

r

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) (NDP-243u is recommended)
Wires (shielded and grounded is recommended)

Installation Procedure

1. Make sure the host computer is power off.

2. Use RS-232 cable to connect NuDAM-6520 with host computer.

3. Wire the power supply to NuDAM. Note that the power supply should meet
the specification.

4. Wire other NuDAMs.

Application Wiring

The Figure 2-1 shows the application wiring of NuDAM-6520.

Host

Computer

RS-232

Local Power Supply

+10 V to +30 V

+Vs GND

Figure 2-1 Application wiring of NuDAM-6520

NuDAM-6520

RS-232/RS-485
Converte

DATA +
DATA -

+Vs GND

NuDAM
module

+ DATA

- DATA

+Vs GND

18 • NuDAM-6520

2.4 Programming

The NuDAM-6520 is a communication module, it is not necessary to be
programmed

NuDAM-6520 • 19

3

NuDAM-6510

3.1. Overview

What is NuDAM-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 excess 128. In
addition, the repeater should also be used when the length of a signal bus is
more than 4000 feet.

Features of NuDAM-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 Easily setup and installation

z Maximum 128 NuDAM on a bus

z Maximum 256 addressable NuDAM modules

z High transfer speed

z Surge protection

z Lower power consumption

Specifications of NuDAM-6510

20 • NuDAM-6510

 Input / Output

♦ Interface : RS-485, differential 2 half-duplex wires RS-422, differential, 4

full-duplex wires

♦ Speed (bps) : 1200(115.2K

1)

, 2400, 4800, 9600, 19.2K, 38.4K

♦ Data Format : 9 bits, 10 bits, 11 bits, or 12 bits
♦ Max RS-485 network bus distance : 4000 ft. (1200m)

Note 1: 115.2k is supported by version A1.2 or later.

 Bus

♦ Max Loading : 128 NuDAMs on a bus

 Power

♦ DC Power Supply : +10V to +30V
♦ Power Consumption : 0.9 W

NuDAM-6510 • 21

A Look at NuDAM-6510 & Pin Assignment

N

)

bp

r

20

DATA+ (Y)

DATA- (G)

D-6510

Switch Position Baud Rate

SW1-1: ON 115.2K bps
SW1-2: ON

SW1-3: ON
SW1-4: ON
SW1-5: ON
SW1-6: ON

DATA­G

(Y)DATA+

Tx+

­Rx-

Rx+

RS-422/RS-485

Repeapte

2400

s
4800 bps
9600 bps

19.2 K bps

38.4 K bps

RX-

Rx+

Tx-

11

(R)+Vs

(B)GND

22 • NuDAM-6510

Pin Definitions

r

r

V

V

D

r

+

n

g

r

+

Pin # Signal Name Description
1 (Y)DATA+ RS-485 transmission line, positive

2 (G)DATA- RS-485 transmission line, negative
4 TXIN+ RS-422 transmission input line, positive
5 TXIN- RS-422 transmission input line, negative
6 RXOUT+ RS-422 receiving output line, positive
7 RXOUT- RS-422 receiving output line, negative
9 (R)+VS NuDAM power supply, +10V~+30V
10 (B)GND NuDAM ground
14 RXIN- RS-422 receiving input line, negative
15 RXIN+ RS-422 receiving input line, positive
16 TXOUT- RS-422 transmission output line, negative
17 TXOUT+ RS-422 transmission output line, positive
19 (G)DATA- RS-485 transmission line, negative
20 (Y)DATA+ RS-485 transmission line, positive

ND-6510 Functional Block Diagram

+5

Power Input
+10V ~ +30

Power Regulato
& Filte

GN

Data

Data-

Rx+

Rx-

Tx+

Tx-

RS-422/RS-485

Receiver/Dr iver

SW1

Communicatio
Switchin
Controlle

Communication

T

RS-422/RS-485

Receiver/Dr iver

PTC

Data

Data-

Rx+

Rx-

Tx+

Tx-

Direction

Control

TVS : Transient Voltage Suppresse
PTC : Positive Temperature Coefficient

NuDAM-6510 • 23

3.2. Setup

Objective of Setup

In normal condition, it only needs to setup the NuDAM-6510 when the NuDAM
bus with more than 128 modules or the distance exceeds 4000 feet long. 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 user’s 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-6510. The user can set the
speed and the data format of the RS-422/RS-485 interface. The speed and the
data format on the whole network must be identity otherwise the communication
may be not correct.

To setup the ND-6510, use the screw driver to open the case, then change the
switch setting. The new setting is available after power on. The case must be
put back and locked carefully. Note that do not scratch the surface of the circuit
while setting up, otherwise the surface coating or even the circuits will be
damaged.

(Note: For Harware Rev.C1 or upper, there is switchless for

Baudrate adjust. It is auto baudrate and parity, data bits
adjust.)

Default Setting

♦ 9600 Baud rate
♦ 10 bits serial data format : one start bit, eight data bits, one stop bit, no

parity check

24 • NuDAM-6510

SW1 Setting

)

p

SW1 Default Setting (9600 bps

ON

OFF

1 2 3 4 5 6 Baud Rate
ON

OFF

OFF OFF OFF OFF OFF 1200 or 115.2k

ON

OFF OFF
OFF OFF OFF
OFF OFF OFF OFF
OFF OFF OFF OFF OFF

2 3 4 5 6

1

OFF OFF OFF OFF 2400 bps

ON

OFF OFF OFF 4800 bps

ON

OFF OFF 9600 bps

ON

OFF 19200 bps

ON

38400 bps

1

bps

Note 1: 115.2kbps is supported by version A1.2 or later.

SW2 Setting

ON

12

S W 2 D e fa ult S e ttin g

S tart B its : 1

D ata B its : 8

B its : 1

Sto

P ar ity : N o n e

1 2 Start Bit Data Bits Stop Bit Parity Packet Data Bits

1 7 1 0 OFF OFF
1 6 1 1
1 8 1 0 OFF ON
1 7 1 1
1 9 1 0 ON OFF
1 8 1 1
1 10 1 0 ON ON
1 9 1 1

9

10

11

12

NuDAM-6510 • 25

3.3 Installation

Software Utility

Software is not necessary.

Equipments for Installation

A 2-wire RS-485 network or 4-wire RS-422 network.

DC Power supply (+10V~+30V)

Wires

Installation Procedure

1. Make sure the original RS-422/RS-485 network is power off.

2. Wire the power supply to NuDAM-6510. Note that the power supply should
meet the specification.

3. Wire other NuDAMs to the extend RS-485 bus.

26 • NuDAM-6510

Application Wiring

NuDAM

module

DATA +

DATA -

+Vs GND

+DATA DATA+

-DATA DATA-

Local Power Supply

+10 V to +30 V

+Vs GND

Figure 3-1 NuDAM-6510 wiring.

3.4 Programming

NuDAM-6510

Repeater

+Vs GND

NuDAM
module

+ DATA

- DATA

+Vs GND

The NuDAM-6510 is a communication module, it is not necessary to be
programmed

NuDAM-6510 • 27

4

NuDAM-6530

4.1. Overview

What is NuDAM-6530 ?

Universal Serial Bus (USB) is an open, royalty free, Plug and Play standard for
PC peripheral connectivity, supported by leading computer, telecommunications
and software company. It behaves in a similar fashion to conventional bus
technology (serial, parallel, ISA…), but is a faster, no extra slots or IRQ required
manner.

The ND-6530 takes advantages of the USB technology, and for the convenience
to the users of numerous PC, IPC, notebooks, laptops and handheld PC, it
provides an easy way to link with industry standard buses interface of
RS-232/422/485.

Features of NuDAM-6530

z USB Specification 1.1 Compliant

z Plug and Play Installation

z Self power

z RS-232 support RTS CTS handshake signal

z Full-Duplex RS-422 support

z Half-Duplex RS-485 support

28 • NuDAM-6530

z Up to 128 RS-485 devices on the bus

z Auto direction flow control on RS-485

z High transfer Speed up to 115.2Kbps

z High isolation voltage up to 2500Vrms

z Surge protection on RS-232/422/485 lines

z Driver support for Windows 2000/98

z Low power consumption

z Easily setup and installation

Specifications of NuDAM-6530

 USB controller:

♦ USB Spec. 1.1 compliant

 Transceiver:

♦ RS-232: SP385E
♦ RS-422: LT490
♦ RS-485: LT1487

 I/O Interface:

♦ RS-232/422/485 DIP switch selectable
♦ RS-232 support RXD, TXD, RTS, CTS, FGND signals
♦ RS-422 support TX+, TX-, RX+, RX- 4 wires full-duplex signals
♦ RS-485 support DATA+, DATA- signals with auto direction control
♦ Selectable transfer speed with 1200, 2400, 4800, 9600, 19200, 38400,

115200 bps

♦ 2500Vrms isolation
♦ Surge protection on all signal lines

 Connector:

♦ USB type B
♦ 10 pin screw terminal block

 LED Indicator:

♦ ON: Receiving USB power
♦ Flashing: Data transfer
♦ OFF: No power applied

 Cable: Type A to type B

NuDAM-6530 • 29

 Storage Temperature Range: -25 to 80 °C

 Operating Temperature Range: -10 to 70 °C

 Power Requirement: USB bus power

 Power Consumption: 0.6W

 Case: ABS with captive mounting hardware

 CE Class A Conformity

30 • NuDAM-6530

A Look at NuDAM-6510 & Pin Assignment

N

USB to RS-232/422/485

D-6530

Converter

FGND

RX-

RX+

TX-/D-

TX+/D+

TX

RX

CTS

RTS

NuDAM-6530 • 31

Pin Definitions

Pin # Signal Name Description
1 TX+/D+ RS-422 or RS-485 transmission line, positive

2 TX-/D- RS-422 or RS-485 transmission line, negative
3 RX+ RS-422 receive line, positive
4 RX- RS-422 receive line, negative
5 NC No connection
6 TX RS-232 transmission line
7 RX RS-232 receive line
8 RTS Request to send
9 CTS Clear to send
10 F.GND Ground
USB Type B connector
1 +5V USB +5V bus power
2 Data- USB data line, negative
3 Data+ USB data line, positive
4 Ground USB bus power ground

ND-6530 Functional Block Diagram

32 • NuDAM-6530

4.2 Setup

Objective of Setup

In normal condition, it is not necessary to setup the NuDAM-6520. The default
configuration of this communication module is in RS-485 mode and support
baudrate from 75 to 115200, with data format including 5, 6, 7, 8 or 16 bits, and
its stop bit support 1, 1.5 or 2 bits, parity types are None, Odd, Even, Mark and
Space. 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 is no needed to config.

Setup Equipments

Only screw driver is used on the dip switch beside the USB connector to select
the protocal type.

Setup Procedure

Only hardware switch setting can be setup in ND-6530. The user can select the
portocal types in RS-422, RS-485 or RS-232 interface. The speed and the data
format on the whole network must be identity otherwise the communication may
be not correct.

To setup the ND-6530, use the screw driver to adjust the dip switch beside the
USB connector to select the protocal type. The new setting is available even
power on. The case will not be open.

NuDAM-6530 • 33

Default Setting

RS-485 Interface

z

DIP Switch Setting

RS-485 (Default)

RS-422

RS-232

34 • NuDAM-6530

4.3 Installation

Software Utility

ND-6530 Driver.

Equipments for Installation

A computer with USB port

Window 98 or Win2000 operation system

USB host controller installed on the system

USB cable (type A to type B)

 Windows 98 Installation:

1. Plug the ND-6530 into the computer USB port or a USB hub. The

Hardware Wizard

appears, click on

Next

to continue.(show as figure)

New

NuDAM-6530 • 35

2. In the dialog box that comes up, leave the default choice (Search for the best

drivers for your device), click on

Next

to continue.

3. In the dialog box that comes up, leave the default choice (

insert the distribution diskette in the floppy (A:) drive, click on

Floppy disk drives

Next

to continue.

),

36 • NuDAM-6530

4. In the dialog box that comes up, click on

copied to your hard disk.

5. After the driver files have been copied to the hard disk, a dialog box appears to

tell you that the installation has finished.

Next

to continue. Files are now

Click on Finish.

(show as figures)

NuDAM-6530 • 37

Installation Complete:

Now you have installed ND-6530 on your system, you can see a new USB serial
device in
COM port, you can use any UART serial communication utility (eg.
HyperTerminal), or call standard windows API for COM

Control Æ Device Manager.

The ND-6530 plays a role as standard

38 • NuDAM-6530

 Windows 2000 Installation

1. Plug the ND-6530 into the computer USB port or a USB hub

2. Then there will be a dialog box as following

3. Please click the next step, and it will show as

Please select the item “Display a list of the known drivers so that I can choose a
specific driver" and click

Next

.

NuDAM-6530 • 39

4. Then it will appear the following dialog box, please choose the item “

LPT”

and click

Next

And please choose the device as following

Com &

40 • NuDAM-6530

5. Then you should use the driver to find the following device

6. After this, you should see the dialog box as

Then you have success to install the ND-6530 on your host

7. To check if the installation is success, please check the device in your device

manager, and there should be a device as

NuDAM-6530 • 41

42 • NuDAM-6530

Application Wiring

RS-485

ND-6530

For RS-485 Transmission Distanc e Up to 1,200m (4,000 ft.)
Load more than 128 NuDAM I/O modules or more than 32
others RS-485 devices

DATA+

DATA-

RS-485 Device

DATA+

DATA-

DATA+

DATA-

DATA+

DATA-

.....

DATA+

DATA-

.....

NuDAM-6530 • 43

RS-422

For RS-422 Transmission Distance Up to 1,200m (4,000 ft.)

TX­TX+
RX­RX+

RS-232

TX+

ND-6530

TX-

RX+

RX-

RX+

RX-

TX+

TX-

RS-232 Device

TX

ND-6530

RX

RTS

CTS

FGND

1

6

TXD

2

CTS

7

RXD

3

8

RTS

4

9

5

GND

44 • NuDAM-6530

4.4 Programming

The NuDAM-6530 is a communication module, it is not necessary to be
programmed

NuDAM-6530 • 45

5

NuDAM-6521

5.1. Overview

What is NuDAM-6521 ?

NuDAM-6521 is an RS-422/485 to RS-232 converter. it converts the
RS-422/485 communication signal to the RS-232 signals which makes your
RS-232 devices easily link up to RS-422/485 multi-drop network.

Features of NuDAM-6521

z RS-422/RS-485 transceiver
z RS-232 support RTS CTS handshake signal
z RS-232 and RS-422/485 can be different baud rate
z Full-Duplex RS-422 support
z Half-Duplex RS-485 support
z Up to 128 RS-485 devices on the bus
z Auto direction flow control on RS-485
z Addressable and non-addressable mode configurable
z High transfer Speed up to 115.2Kbps
z High isolation voltage up to 2500Vrms
z Surge protection on RS-422/485 lines
z Low power consumption
z Easily setup and installation

46 • NuDAM-6521

Specifications of NuDAM-6521

 Transmission Speed (bps): 1,200 ~ 115,200 (RS-422/485 and RS-232

can set to different baud rate)

 Data Format: (RS-232) (RS-422/485 is fixed to 1 stop bit, non-parity, 8

data bits format)

♦ Stop bits: 1, 2
♦ Parity type: None, Even, Odd
♦ Data bits: 5, 6, 7, 8

 RS-232:

♦ 9 pin D-sub female connector
♦ Support RXD, TXD, RTS, CTS signals

 RS-422:

♦ Differential 4 full duplex wires
♦ Support TX+, TX-, RX+, RX- signals
♦ Surge protection on signal pins

 RS-485:

♦ Differential 2 half duplex wires
♦ Support DATA+, DATA- signals
♦ Surge protection on signal pins

 Isolation Voltage: 1000 V

 Storage Temperature Range: -25 to 80 °C

 Operating Temperature Range: -10 to 70 °C

 Power Requirement: +10V to +30V

reversal

DC

Unregulated with against power

DC

♦ Power Consumption: 0.75W

 Case: ABS with captive mounting hardware

 CE Class A Conformity

NuDAM-6521 • 47

A Look at NuDAM-6521 & Pin Assignment

N

(

)

(RS-232 )

Addressable RS-4 22/485

To RS-232 Converter

D-6521

DATA+
Y

TX+

DEFAULT*

(G)DATA-

X-

TX-

RX+

FGND

(B)GND

(R)+Vs

48 • NuDAM-6521

Pin Definitions

Pin # Signal Name Description
1 (Y)DATA+ RS-485 transmission line, positive
2 (G)DATA- RS-485 transmission line, negative

3 DEFAULT* Initial state setting
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
8 FGND Field ground
9 (R)+VS Power supply, +10V~+30V
10 (B)GND Ground
RS-232 9-pin RS-232 connector

*The module is in DEFAULT mode when DEFAULT* pin connected
to GND while applying power on the module.

*Do not apply any power signal to DEFAULT* pin, just left it open or
connected it to GND.

1

6

TXD

CTS

RTS

2

7

RXD

3

8

4

9

5

GND

NuDAM-6521 • 49

Functional Block Diagram

Power Regulator
& Filter

Power Input
+10V ~ +30V

+5V

GND

Isolation +5V

Isolation GND

DC to DC
Converter

TXD
RXD

RTS

RS-232
Receiver
/ Driver

GND

Opto-Is olatio n

TVS : Transient Voltage Suppresser

PTC : Positive Temperature Coefficient

SW1

Communication
Switching
Controller

Communication

Direction Control

TVS

RS-422/RS-485

Receiver/Drive

PTC

Dat a+

Dat a-

Rx+

Rx-

Tx+

Tx-

50 • NuDAM-6521

5.2 Initialation & Installation

Software Installation

1. If you have already installed “NuDAM Administration” then skip other steps.

2. Backup your software diskette

3. Insert “NuDAM Administration” disc into CD-ROM:

4. Change drive to the path of CD-ROM. For example, your drive of CD-ROM is
F:, then change the drive to F:

5. Find the setup of NuDAM Administration and run it.

6. Please follow the steps of setup program then you can successful to install the
nudism Administration.

Objective of Initializing a Brand-New NuDAM-6521

All NuDAM modules. except NuDAM-6520, 6510, and 6530, in a RS-485
network must have an unique address ID, however, every brand-new
NuDAM-6521 has a factory default setting as following:

♦ Address ID is 01.
♦ Baud rate is 9600 bps
♦ RS-485 Interface
♦ Host Watchdog timer is disable

Therefore, to configure the brand-new NuDAM before using is necessary,
otherwise the address ID will be conflict with others modules because the ID of
new modules are identity . The baud rate may also be changed according to
user‘s requirements.

Default State

The NuDAM I/O modules must be set at Default State when you want to change
the default settings, such as the ID address, baud rate, check-sum status etc.
All NuDAM I/O modules have an special pin labeled as
will be in Default State if the
ON. Under this state, the default configuration is set as following:

DEFAULT*

pin is shorted to ground when power

♦ Address ID is 00.
♦ Baud rate is 9600 bps.
♦ RS-485 Interface

DEFAULT*

. The module

NuDAM-6521 • 51

Therefore, the communication between host and the module will can be easily
set as the same configuration, the initialization of a module will be possible no
matter what configuration is set under operating state

Initialization Equipments

♦ Host computer with an RS-232 port.
♦ An installed RS-485 module (NuDAM-6520 or 6530) with 9600 baud

rate.

♦ The brand new NuDAM-6521
♦ Power supply (+10 to +30 V

) for NuDAM modules

DC

♦ Administration utility software

Note1: Never Connect the DRFAULT* pin to Vs or power source

just left it open or wired to GND.

Initialization Procedure

1. Power off the host computer and the installed NuDAM-6520 or 6530. Be sure
of the baud rate of the NuDAM-6520 or 6530 is 9600 bps.

2. Connect a brand new NuDAM module with the RS-485. Set the module in
Default State by shorting the
wiring.

3. Power on the host computer.

4. Power on the power supply for NuDAM modules.

5. Use the NuDAM Administrating utility to configure the address ID, Baud rate
and check-sum status of the module.

DEFAULT*

pin. Refer to Figure 5.1 for detailed

52 • NuDAM-6521

Initialization Wiring

5.3. Install a New NuDAM-6521 to a Existing Network

Equipments for Install a New Module

♦ A existing NuDAM network
♦ New NuDAM modules.
♦ Power supply (+10 to +30 V

Installation Procedure

1. Configure the new NuDAM module according to the initialization procedure in
section 2.2.

2. The baud rate and check-sum status of the new module must be identity with
the existing RS-485 network. The address ID must not be conflict with other
NuDAM modules on the network.

3. Power off the NuDAM power supply of the existing RS-485 network.

4. Power off the host computer.

5. Wire the power lines for the new NuDAM with the existing network. Be careful
about the signal polarity as wiring.

6. Wire the RS-485 data lines for the new NuDAM with the existing network. Be
careful about the signal polarity as wiring.

7. Wire to the input or output devices. Refer to section 2.4 for illustrations.

8. Power on the host computer.

9. Power on the NuDAM local power supply.

10. Use the NuDAM administration utility to check entire network.

DC

).

NuDAM-6521 • 53

Application Wiring

RX+

RX-

TX+

TX-

Host with RS-422/485 I/F

DATA+

DATA-

TX+

TX-

RX+

RX-

DATA+

DATA-

ND-6521

1

6

TXD

2

CTS

7

RXD

3

RTS

8

4

9

5

GND

RTS

CTS

1

6

2

RXD

7

TXD

3

8

4

9

GND

5

RS-232 Device

5.4 Command Set

5.4.1 Command and Response

Introduction

The NuDAM command is composed by numbers of characteristics, including the
leading code, address ID, the variables and a carriage return to indicate the end
of a command. The host computer can only command only one NuDAM module.
The slave device may or may not give response to the command.

Document Conventions

The NuDAM command is composed by numbers of characteristics, including the
leading code, address ID, the variables and a carriage return to indicate the end
of a command. The host computer can only command only one NuDAM module.
The slave device may or may not give response to the command.

54 • NuDAM-6521

(Leading
Code)

(Addr) Module’s address ID, the value is in the range of 00 - FF

(Command
Variable)
[Data] Some output command need data.

[Checksum] Checksum in brackets indicate optional parameter,

< > Identifies a control code character, such as <CR> for carriage

Format of NuDAM Commands

(Leading Code)(Addr)(Command)[Data]<CR>

Example:

Leading Code is the first characteristic of the NuDAM
command. All NuDAM commands need a command leading
code, such as %,$,#,@,...etc.
1- character

(Hexadecimal) if no specified in the following.
2- character
Items indicate command codes or value of variables.
Variable length

Variable length

only checksum is enable then this field is required.
2- character

return, its value is 0x0D.

User Command: $012<CR>

Response: !01400600<CR>

$: LeadingCode

01: Address

2: Command (Read Configuration)

<CR>: Carriage return 0x0D

1- character

NuDAM-6521 • 55

Response of NuDAM Commands

The response message depends on NuDAM command. The response is also
composed with several characteristics, including leading code, variables, and
carriage return for ending. There are two kinds of leading code for response
message, ”!“ or ”>“ means valid command and ”?“ means invalid. By checking
the response message, user can monitor the command is valid or invalid.

Note : Under the following conditions, there will have no response

message.

1. The specified address ID does not exist.

2. Syntax error.

3. Communication error.

4. Some special commands do not have response.

5.4.2 Summary of Command Set

Command Set of Digital I/O Modules
Command Syntax
General Commands

Set Configuration

Read Configuration
Read Module Name
Read Firmware Version
Soft Reset
Reset Status

Functional Commands

Set RTS Status
Read RTS Status
Read CTS Status
Set Device ID
Read Device ID
Set Delimiter
Read Delimiter
Data Pass
Open/Close Data Gate

Special Commands

%(OldAddr)(NewAddr)
(TypeCode)(BaudRate)
(CheckSumFlag)
$(Addr)2
$(Addr)M
$(Addr)F
$(Addr)RS
$(Addr)5

$(Addr)0(RTS Status)
$(Addr)3
$(Addr)1
$(Addr)6(Device ID)
$(Addr)7
$(Addr)C(Delimiter)
$(Addr)D
(Delimiter)(Addr)(Data)
&(Addr)8(Data Gate Mode)

56 • NuDAM-6521

Read Command Leading Code
Setting
Change Command Leading Code
Setting

Set Host Watchdog / Safety Value
Read Host WatchDog / Safe

Value
Host is OK

~(Addr)0

~(Addr)10(C1)(C2)(C3)
(C4)(C5)(C6)
~(Addr)2(Flag)(TimeOut) (SafeValue)
~(Addr)3

~**

5.4.3 Set Configuration

@Description

Configure the basic setting about address ID, baud rate, and checksum.

@Syntax

%(OldAddr)(NewAddr)(TypeCode)(BaudRate)(DataFlag)<CR>

% Command leading code.

(1-character)

(OldAddr) Original address ID. The default address ID of a

brand new module is 01. The value range of
address ID is 00 to FF in hexadecimal.

(2-character)

(NewAddr) New address ID, if you don’t want to change

address ID, let new address ID equals to the old

(2-character)

one.
(TypeCode)
(BaudRate) Communication baud rate, refer to Table 3-1 for

(DataFlag) Define check-sum status, refer to Table3-2 for

W. bit 3 0
1 Non-addressable mode (ND-6520 mode)
W. bit 2 0 Disable checksum (*Default Setting)
1 Enable checksum
W. bit 1 0 RS-422 interface
1 RS-485 interface (*Default Setting)
W. bit 0 Don’t care, set to 0
X. bit 3 Don’t care, set to 0
X. bit 2 Don’t care, set to 0

Type Code is fixed 40H

details. The first character is for RS-232, the

second character is for RS422/485.

(2-character)

(4-character, WXYZ)

details.

system setting. YZ is for RS-232 configuration.

Normal addressable mode (*Default Setting)

. (2-character)

WX is for module

NuDAM-6521 • 57

X. bit 1 Don’t care, set to 0
X. bit 0 0 Don’t append <CR> in output string
1 Append <CR> in output string(*Default

Y. bit 3 Don’t care, set to 0
Y. bit 2 Don’t care, set to 0
Y. bit 1 Don’t care, set to 0
Y. bit 0 0 Odd parity (*Default Setting)
1 Even parity
Z. bit 3 0 Non-parity mode (*DefaultSetting)
1 Parity mode
Z. bit 2 0 One stop bit (*Default Setting)
1 Two stop bit
Z. bit 1 0 00 5 data bit format
01 6 data bit format
10 7 data bit format
11 8 data bit format

@Response

!(Addr)<CR>

or

?(Addr)<CR>

(Addr) Address ID.
! Command is valid.

? Command is invalid. Invalid parameter values,

Setting)

When you wanted to change the setting without
grounding the DEFAULT* pin.

Note :When you want to change the checksum or baud rate or

DataFlag, then the DEFAULT* pin should be grounded at
first.

58 • NuDAM-6521

@Example

Item Meaning Description
% (Leading Code) Command leading code.
01 (OldAddr) Original address ID is 01H.
30 (NewAddr) New address ID is 30H

40 (TypeCode) 6521 module.
6 (BaudRate for

6 (BaudRate for

2103 (DataFlag) Addressable mode

<CR> Carriage return 0x0D.

User command:

Response:

RS-422/485)

RS-232)

%013040662103<CR>

!30<CR>

(Hexadecimal).

Baud rate is 9600 for RS-422/485.

Baud rate is 9600 for RS-232.

Checksum is disable
RS-485 interface
Append <CR>
Non-parity
8 data bit

Code Baudrate

3 1200 bps

4 2400 bps

5 4800 bps

6 9600 bps

7 19200 bps

8 38400 bps

9 115200 bps

A 57600 bps

Table 5-1. Baud rate setting code

NuDAM-6521 • 59

5.4.4 Read Configuration

@Description

Read the configuration of module on a specified address ID.

@Syntax

$(Addr)2<CR>

$ Command leading code
(Addr) Address ID.
2 Command code for reading configuration

@Response

!(Addr)(TypeCode)(BaudRate)(DataFlag)<CR>

or

?(Addr)<CR>

! Command is valid.
? Command is invalid.
(Addr) Address ID.
(TypeCode) It always be 40 (Hex)
(BaudRate) Current setting of communication baud rate of

RS-422/485 and RS-232, refer to Table 3-1 for
details.

(DataFlag) Current setting of module setting and RS-232

configuration. Refer 3.3 for details.

@Example

User command:

Response:

$302<CR>

!3040662103<CR>

! Command is valid.
30 Address ID.
40 Digital I/O module.
66 Baud rate is 9600 for RS-422/485 and RS-232.
2103 Addressable mode

Checksum is disable
RS-485 interface
Append <CR>
Non-parity
8 data bit

5.4.5 Read Module Name

60 • NuDAM-6521

@Description

Read module‘s name.

@Syntax

$(Addr)M<CR>

$ Command leading code.
(Addr) Address ID
M Read module name

@Response

!(Addr)(ModuleName) <CR>

or

?(Addr)<CR>

! Command is valid.
? Command is invalid.
(Addr) Address ID.
(ModuleName) NuDAM module‘s name.

@Example

User command:

Response:

! Command is valid.
30 Address
6521 ND-6521 (RS-422/485 to RS-232 converter)

$30M<CR>

!306521<CR>

NuDAM-6521 • 61

5.4.6 Read Firmware Version

@Description

Read NuDAM module‘s firmware version.

@Syntax

$(Addr)F<CR>

$ Command leading code.
(Addr) Address ID
F Read module firmware version.

@Response

!(Addr)(FirmRev) <CR>

or

?(Addr)<CR>

! Command is valid.
? Command is invalid.
(Addr) Address ID.
(FirmRev) NuDAM module‘s firmware version.

@Example

User command:

Response:

! Command is valid.
30 Address
E1.00 Firmware Version

$30F<CR>

!30E1.00<CR>

62 • NuDAM-6521

5.4.7 Soft Reset

@Description

Reset the module by software command

@Syntax

$(Addr)RS<CR>

$ Command leading code.
(Addr) Address ID
RS Soft Reset Command

@Response

!(Addr)<CR>

or

?(Addr)<CR>

! Command is valid.
? Command is invalid.
(Addr) Address ID.

@Example

User command:

Response:

$30RS<CR>

!30<CR>

NuDAM-6521 • 63

5.4.8 Reset Status

@Description

Checks the reset status of module at specified address to see whether it has
been reset since the last reset status command was issued to the module.

@Syntax

$(Addr)5<CR>

$ Command leading code.
(Addr) Address ID
5 Reset Status Command

@Response

!(Addr)(Status)<CR>

or

?(Addr)<CR>

! Command is valid.
? Command is invalid.
(Addr) Address ID.
(Status) 0 : It has not been reset since the last reset

status command was issued.
1 : It has been reset since the last reset
status command was issued

@Example

User command:

Response:

Status is 0 means this module has not been reset since the last reset status
command was issued.

$305<CR>

!300<CR>

64 • NuDAM-6521

5.4.9 Set RTS Status

@Description

Set the RS-232 RTS signal to specified value.

@Syntax

$(Addr)0(RTS Status)<CR>

$
(Addr) Address ID (2-character)
0 Set RTS Status command
(RTS Status) 0 : Set RTS Status to 0

@Response

!(Addr)<CR>

or

?(Addr)<CR>

! Command is valid
? Command is invalid.
(Addr) Address ID.

@Example

User command:

Response:

30 Address ID
0 Set RTS Status command
1 Set the RTS signal to 1

Command leading code.

1: Set RTS Status to 1

$3001<CR>

!30<CR>

(1-character)

NuDAM-6521 • 65

5.4.10 Read RTS Status

@Description

Read the RS-232 RTS status.

@Syntax

$(Addr)3<CR>

$
(Addr) Address ID (2-character)
3 Read RTS status command

@Response

!(Addr)(RTS Status)<CR>

or

?(Addr)<CR>

! Command is valid
? Command is invalid.
(Addr) Address ID.
(RTS Status) 0 : RTS Status is 0

@Example

User command:

Response:

Command leading code.

1: RTS Status is 1

$303<CR>

!301<CR>

(1-character)

66 • NuDAM-6521

5.4.11 Read CTS Status

@Description

Read the RS-232 CTS status.

@Syntax

$(Addr)1<CR>

$
(Addr) Address ID (2-character)
1 Read CTS status command

@Response

!(Addr)(CTS Status)<CR>

or

?(Addr)<CR>

! Command is valid
? Command is invalid.
(Addr) Address ID.
(CTS Status) 0 : CTS Status is 0

@Example

User command:

Response:

Command leading code.

1: CTS Status is 1

$301<CR>

!300<CR>

(1-character)

NuDAM-6521 • 67

5.4.12 Set Device ID

@Description

Set the ID of RS-232 network.

@Syntax

$(Addr)6(Device ID)<CR>

$
(Addr) Address ID (2-character)
6 Set Device ID command
Device ID RS-232 Device ID for up to 24 bytes

@Response

!(Addr)<CR>

or

?(Addr)<CR>

! Command is valid
? Command is invalid.
(Addr) Address ID.

@Example

User command:

Response:

30 Address ID
6 Set Device ID command
NuDAM
Network 1

Command leading code.

Set the ID on address #30 to “NuDAM Network 1”

(1-character)

$306NuDAM Network 1<CR>

!30<CR>

68 • NuDAM-6521

5.4.13 Read Device ID

@Description

Read the ID of RS-232 network.

@Syntax

$(Addr)7<CR>

$
(Addr) Address ID (2-character)
7 Read Device ID command

@Response

!(Addr)(Device ID)<CR>

or

?(Addr)<CR>

! Command is valid
? Command is invalid.
(Addr) Address ID.
Device ID RS-232 Device ID

@Example

User command:

Response:

30 Address ID
NuDAM
Network 1

Command leading code.

The ID on address #30 is “NuDAM Network 1”

(1-character)

$307<CR>

!30NuDAM Network 1<CR>

NuDAM-6521 • 69

5.4.14 Set Delimiter

@Description

Set the delimiter character for the Data Pass command.

@Syntax

$(Addr)C(Delimiter)<CR>

$
(Addr) Address ID (2-character)
C Set Delimiter command
Delimiter 8 special character:

@Response

!(Addr)<CR>

or

?(Addr)<CR>

! Command is valid
? Command is invalid.
(Addr) Address ID.

@Example

User command:

Response:

30 Address ID
C Set Delimiter command
{ Use { as Data Pass delimiter

Command leading code.

: [ ] ^ { } | ~

can be used for delimiter

$30C{<CR>

!30<CR>

(1-character)

70 • NuDAM-6521

5.4.15 Read Delimiter

@Description

Read the delimiter character.

@Syntax

$(Addr)D<CR>

$
(Addr) Address ID (2-character)
D Read delimiter command

@Response

!(Addr)(Delimiter)<CR>

or

?(Addr)<CR>

! Command is valid
? Command is invalid.
(Addr) Address ID.
Delimiter Delimiter character

@Example

User command:

Response:

30 Address ID
{ { is used as delimiter for Data Pass command

Command leading code.

$30D<CR>

!30{<CR>

(1-character)

NuDAM-6521 • 71

5.4.16 Data Pass

@Description

Pass the data to RS-232 device.

@Syntax

(Delimiter)(Addr)(Data)<CR>

(Delimiter) Data pass delimiter character
(Addr) Address ID (2-character)
Data Data to the RS-232 device, up to 80 bytes of data can

be passed by one command

@Response

No response

@Example

User command:

Response:

{ Use { as Data Pass delimiter
30 Address ID
ABCDEF Data pass to RS-232 device (if X.0 = 0, don’t append

ABCDEF<CR> Data pass to RS-232 device (if X.0 = 1, append <CR>

<CR>)

mode)

{30ABCDEFGHIJ<CR>

72 • NuDAM-6521

5.4.17 Open/Close Data Gate

@Description

Set the ND-6521 as non-addressable mode or addressable mode.

@Syntax

&(Addr)8(Data Gate Mode)<CR>

&
(Addr) Address ID (2-character)
8 Open/Close Data Gate Command
Data Gate
Mode

@Response

!(Addr)<CR>

or

?(Addr)<CR>

@Example

User command:

Response: !30

& Command leading code
30 Address ID
10 Open data gate

* Once the gate is open, the ND-6521 can be used as the ND-6520 for
transparent data converter.

Command leading code.

10: Open the ND-6521 as non-addressable mode
00: Close the ND-6521 as addressable mode

&30810<CR>

(1-character)

NuDAM-6521 • 73

5.4.18 Read Command Leading Code Setting

@Description

Read command leading code setting status.

@Syntax

~(Addr)0<CR>

~ Command leading code.
(Addr) Address ID
0 Read command leading code setting.

@Response

!(Addr)(Status)(C1)(C2)(C3)(C4)(C5)(C6)<CR>

or

?(Addr)<CR>

! Command is valid.
? Command is invalid.
(Addr) Address ID
(Status) (2-character)

Bit 0 : Reserved
Bit 1 : Power failure or watchdog failure
Bit 2 : Host watchdog is enable
Bit 3 : Host failure

(C1) Leading code 1, for read configuration status,

firmware version, etc. default is
(1-character)

(C2) Leading code 2, for read synchronize sampling,

digital output ,default is

(C3) Leading code 3, for change configuration.

default is %. (1-character)

(C4) Leading code 4, for read alarm status, enable

alarm, etc. default is

(C5) Leading code 5, for read command leading code,

change command leading code, etc. default is

(1-character)

(C6) Leading code 6, this leading code is reserved.

Default is

*. (1-character)

#. (1-character)

@. (1-character)

$.

~.

74 • NuDAM-6521

@Example

User command:

Response:

Command leading code setting is $#%@~* for module address ID 30, current
status is factory default setting.

~300<CR>

!3000$#%@~*<CR>

5.4.19 Change Command Leading Code Setting

@Description

User can use this command to change command leading code setting as he
desired.

@Syntax

~(Addr)10(C1)(C2)(C3)(C4)(C5)(C6)<CR>

~ Command leading code.
(Addr) Address ID, range (00 - FF).
10 Change command leading code setting.
(C1) Leading code 1, for read configuration status, firmware version,

etc. default is

(C2) Leading code 2, for read synchronize sampling, digital

output ,default is

(C3) Leading code 3, for change configuration.

default is %. (1-character)

(C4) Leading code 4, for read alarm status, enable alarm, etc. default is

@. (1-character)

(C5) Leading code 5, for read command leading code, change leading

code, etc. default is
(1-character)

(C6)

@Response

!(Addr)< CR>

or

?(Addr)<CR>

Leading code 6, this leading code is reserved. default is

(1-character)

! Command is valid.
? Command is invalid.
(Addr) Address ID.

$. (1-character)

#. (1-character)

~.

*.

NuDAM-6521 • 75

@Examples

User command:

Response:

User command:

Response:

User command:

Response:

Read leading code setting is $#%@~* for module address 30 and change
leading code $ to A, then use A30F to read firmware version of module on
address 30.

*** WARNING ***

We do not recommend users to change the default setting of leading code,
because it will make you confuse

The leading code changing only when the command conflicts other devices on
the network.

~300<CR>

!3000$#%@~*<CR>

~3010A#%@~*<CR>

!30<CR>

A

30F

!30E1.00<CR>

76 • NuDAM-6521

5.4.20 Set Host Watchdog Timer

@Description

Set host watchdog timer, module will change to safety state when host is failure.

@Syntax

~(Addr)2(Flag)(TimeOut)00<CR>
~ Command leading code.

(Addr) Address ID, range (00 - FF).
2 Set host watchdog timer and safe state value.
(Flag) 0 : Disable host watchdog timer

1 : Enable host watchdog timer

(TimeOut) Host timeout value, between this time period host must

send (Host is OK) command to module, otherwise module
will change to safety state.
Range 01 - FF.
One unit is 100 ms
01 = 1 * 100 = 100 ms
FF = 255 * 100 = 25.5 sec

(SafeValue) 8 channels safety value of digital output channels when

host is failure.

@Response

!(Addr)<CR>

or

?(Addr)<CR>
! Command is valid.

? Command is invalid.
(Addr) Address ID

@Example

User command:

Response:

30 Address ID
2 Set host watchdog timer and safe state value.
1 Enable host watchdog timer.
12 Timeout value. 0x12 = 18

00

18 * 100 = 1800 ms

(2-character)

(2-character)

(1-character)

~30211200<CR>

!30<CR>

NuDAM-6521 • 77

5.4.21 Read Host Watchdog Timer

@Description

Read host watchdog timer setting and the safety value.

@Syntax

~(Addr)3<CR>

~ Command leading code.
(Addr) Address ID
3 Read host watchdog setting and module safety

state value.

@Response

!(Addr)(Flag)(TimeOut)00<CR>

or

?(Addr)<CR>

! Command is valid.
? Command is invalid.
(Addr) Address ID, range (00 - FF).
(Flag) 0 : Host watchdog timer is disable

1 : Host watchdog timer is enable

(TimeOut) Host timeout value.

Range 01 - FF.
One unit is 100 ms
01 = 1 * 100 = 100 ms
FF = 255 * 100 = 25.5 sec

00

@Example

User command:

Response:

06 Address ID
1 Host watchdog timer is enable.
12 Timeout value. 0x12 = 18

00

18 * 100 = 1800 ms

(2-character)

~303<CR>

!3011200<CR>

(1-character)

78 • NuDAM-6521

5.4.22 Host is OK

@Description

When host watchdog timer is enable, host computer must send this command to
every module before timeout otherwise
module‘s output value will go to safety state output value.

@Syntax

~**<CR>

~ Command leading code.
** Host is OK.

@Response

“host watchdog timer enable”

Note : Host is OK command has NO response.

@Example

User command:

~**<CR>

NuDAM-6521 • 79

6

Software Utility

6.1 Software Installation

1. Insert “ADLink All-in-one CD” into your CDROM driver.

2. Move cursor on NuDAM and click.

3. Move cursor on NuDAM 6000 Admin Utility and click.

4. Select the driver you want to install and follow the setup instructions on
screen.

6.2 How to Execute the NuDAM Administration

What environment you needed ?

1. At least one RS-232 communication port.

2. Microsoft Windows(version 3.1, 95/98/NT)

3. At least 2MB Hard Drive Space

4. A VGA monitor(optional)

5. Mouse (optional)

Execute the NuDAM Administration Utility

Run “NuDAM Administration Utility” Icon.

z

80 • Software Utility

6.3 NuDAM Administration Function Overview

Default RS-232 Communication Port Setting.

z Communication Port :

z Baud Rate :

z Data Bits : 8

z Stop Bits : 1

z Parity :

COM2

9600

None

6.3.1 Change RS-232 Communication Port Setting.

Choose “Network-ComPort” to change setting.

Software Utility • 81

6.3.2 Search all exist Nudam modules

Choose “Network-Search” to search all exist Nudam modules in the current
RS-485 network.

You can change search addresses range from here.

82 • Software Utility

6.3.3 Using Operations

Operation-Terminal : Terminal Emulation, user can input

command and get response message.

Operation-Configuration : Select one exist NuDAM module and select

Configuration to do this module‘s common
and private setting .

Operation-Monitor: Monitor all the module’s function on the

network.
Operation-Diagnostic: Diagnostic module‘s function.
Operation-Calibration: Some A/D modules need do calibration
Operation-Model Number: Select Model Number

Software Utility • 83

Term ICON for Operation-Terminal

You can remote control all moudles by directly using command mode, or testing
your modules from this Terminal.

84 • Software Utility

Operation-Run Batch : Run batch command file in BATCH.CMD

user can edit this text file.

Operation-Step Batch : Run the batch command step by step.
Operation-Display Batch: Display content of BATCH.CMD
Operation-Repeat : Repeat one command n times

D

iag ICON for Operation-Diagnostic

This dialog is different by different-fuction modules.

Software Utility • 85

Cal ICON for Operation-Calibration

This dialog is different by different-fuction modules.

86 • Software Utility

6.3.4 Save and Print Nudam modules’ information

File-Save : Save all exist NuDAM modules information as display as in the

listbox in the current RS-485 network.
File-Print : Print the NuDAM module information in the listbox.
File-Exit : Quit the NuDAM Administration Utility.

Software Utility • 87

6.3.5 Version Information

Help-About Version information

88 • Software Utility

Troubleshooting and

Maintenance

Preventive Maintain

z Periodic check for loose connection

ATTENTION: To avoid electircal shock or unintended operation of the
module, remove incoming power before checking connections.

Using the LED Indication

The LED provides status information on Modules operation. The
troubleshooting about shows LED indicator. It also shows how to use the LED to
detect and correct common operating problems.

LED What it Means: What to do:

OFF Module is not receiving input

power by loosing wiring.

ON(RED) Normal receiving state. No action required.
Flashing Normal transmitting state. No action required.

Other Malfunctions

Problem What it Means: What to do:

Check module wiring,
cable connections, and
cable connections on
terminal block.

Do not
function

Loose wiring
Incorrect DIP switch setting

Check wiring and cable
connection
Check Baudrate and data
packet setting of the DIP
switch.

Troubleshooting and Maintenance • 89

Warranty Policy

Thank you for choosing ADLINK. To understand your rights and enjoy all the
after-sales services we offer, please read the following carefully.

1. Before using ADLINK’s products please read the user manual and
follow the instructions exactly. When sending in damaged products for
repair, please attach an RMA application form which can be
downloaded from: http://rma.adlinktech.com/policy/.

2. All ADLINK products come with a limited two-year warranty, one year
for products bought in China.

• The warranty period starts on the day the product is shipped from

ADLINK’s factory.

• Peripherals and third-party products not manufactured by ADLINK

will be covered by the original manufacturers' warranty.

• For products containing storage devices (hard drives, flash cards,

etc.), please back up your data before sending them for repair.
ADLINK is not responsible for any loss of data.

• Please ensure the use of properly licensed software with our

systems. ADLINK does not condone the use of pirated software
and will not service systems using such software. ADLINK will not
be held legally responsible for products shipped with unlicensed
software installed by the user.

• For general repairs, please do not include peripheral accessories.

If peripherals need to be included, be certain to specify which
items you sent on the RMA Request & Confirmation Form.
ADLINK is not responsible for items not listed on the RMA
Request & Confirmation Form.

3. Our repair service is not covered by ADLINK's guarantee in the
following situations:

• Damage caused by not following instructions in the User's Manual.

• Damage caused by carelessness on the user's part during product

transportation.

• Damage caused by fire, earthquakes, floods, lightening, pollution,

other acts of God, and/or incorrect usage of voltage transformers.

90 • Warranty Policy

• Damage caused by inappropriate storage environments such as

with high temperatures, high humidity, or volatile chemicals.

• Damage caused by leakage of battery fluid during or after change

of batteries by customer/user.

• Damage from improper repair by unauthorized ADLINK

technicians.

• Products with altered and/or damaged serial numbers are not

entitled to our service.

• This warranty is not transferable or extendible.

• Other categories not protected under our warranty.

4. Customers are responsible for all fees necessary to transport damaged
products to ADLINK.

For further questions, please e-mail our FAE staff: [e-mail]

Warranty Policy •