Advantech ADAM-4572 User Manual

User Manual

ADAM-4572

1 port Modbus Gateway

Copyright

Part No. 2009457200 Edition 1

Printed in Taiwan April 2014

The documentation and the software included with this product are copyrighted 2013
by Advantech Co., Ltd. All rights are reserved. Advantech Co., Ltd. reserves the right
to make improvements in the products described in this manual at any time without
notice. No part of this manual may be reproduced, copied, translated or transmitted
in any form or by any means without the prior written permission of Advantech Co.,
Ltd. Information provided in this manual is intended to be accurate and reliable. How­ever, Advantech Co., Ltd. assumes no responsibility for its use, nor for any infringe­ments of the rights of third parties, which may result from its use.

Acknowledgements

Intel and Pentium are trademarks of Intel Corporation.

Microsoft Windows and MS-DOS are registered trademarks of Microsoft Corp.
All other product names or trademarks are properties of their respective owners.

Product Warranty (5 years)

Advantech warrants to you, the original purchaser, that each of its products will be
free from defects in materials and workmanship for two years from the date of pur­chase.

This warranty does not apply to any products which have been repaired or altered by
persons other than repair personnel authorized by Advantech, or which have been
subject to misuse, abuse, accident or improper installation. Advantech assumes no
liability under the terms of this warranty as a consequence of such events.

Because of Advantech’s high quality-control standards and rigorous testing, most of
our customers never need to use our repair service. If an Advantech product is defec­tive, it will be repaired or replaced at no charge during the warranty period. For out­of-warranty repairs, you will be billed according to the cost of replacement materials,
service time and freight. Please consult your dealer for more details.

If you think you have a defective product, follow these steps:

1. Collect all the information about the problem encountered. (For example, CPU

speed, Advantech products used, other hardware and software used, etc.) Note
anything abnormal and list any onscreen messages you get when the problem
occurs.

2. Call your dealer and describe the problem. Please have your manual, product,

and any helpful information readily available.

3. If your product is diagnosed as defective, obtain an RMA (return merchandize

authorization) number from your dealer. This allows us to process your return
more quickly.

4. Carefully pack the defective product, a fully-completed Repair and Replacement

Order Card and a photocopy proof of purchase date (such as your sales receipt)
in a shippable container. A product returned without proof of the purchase date
is not eligible for warranty service.

5. Write the RMA number visibly on the outside of the package and ship it prepaid

to your dealer.

ADAM-4572 Series User Manual ii

Declaration of Conformity

CE

This product has passed the CE test for environmental specifications when shielded
cables are used for external wiring. We recommend the use of shielded cables. This
kind of cable is available from Advantech. Please contact your local supplier for
ordering information.

CE

This product has passed the CE test for environmental specifications. Test conditions
for passing included the equipment being operated within an industrial enclosure. In
order to protect the product from being damaged by ESD (Electrostatic Discharge)
and EMI leakage, we strongly recommend the use of CE-compliant industrial enclo­sure products.

FCC Class A

Note: This equipment has been tested and found to comply with the limits for a Class
A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Opera­tion of this equipment in a residential area is likely to cause harmful interference in
which case the user will be required to correct the interference at his own expense.

Technical Support and Assistance

1. Visit the Advantech web site at www.advantech.com/support where you can find

the latest information about the product.

2. Contact your distributor, sales representative, or Advantech's customer service

center for technical support if you need additional assistance. Please have the
following information ready before you call:

– Product name and serial number
– Description of your peripheral attachments
– Description of your software (operating system, version, application software,

etc.)

– A complete description of the problem
– The exact wording of any error messages

iii ADAM-4572 Series User Manual

Safety Instructions

1. Read these safety instructions carefully.

2. Keep this User Manual for later reference.

3. Disconnect this equipment from any AC outlet before cleaning. Use a damp

cloth. Do not use liquid or spray detergents for cleaning.

4. For plug-in equipment, the power outlet socket must be located near the equip-

ment and must be easily accessible.

5. Keep this equipment away from humidity.

6. Put this equipment on a reliable surface during installation. Dropping it or letting

it fall may cause damage.

7. The openings on the enclosure are for air convection. Protect the equipment

from overheating. DO NOT COVER THE OPENINGS.

8. Make sure the voltage of the power source is correct before connecting the

equipment to the power outlet.

9. Position the power cord so that people cannot step on it. Do not place anything

over the power cord.

10. All cautions and warnings on the equipment should be noted.

11. If the equipment is not used for a long time, disconnect it from the power source

to avoid damage by transient overvoltage.

12. Never pour any liquid into an opening. This may cause fire or electrical shock.

13. Never open the equipment. For safety reasons, the equipment should be

opened only by qualified service personnel.

14. If one of the following situations arises, get the equipment checked by service

personnel:

– The power cord or plug is damaged.
– Liquid has penetrated into the equipment.
– The equipment has been exposed to moisture.
– The equipment does not work well, or you cannot get it to work according to

the user's manual.

– The equipment has been dropped and damaged.
– The equipment has obvious signs of breakage.

15. DO NOT LEAVE THIS EQUIPMENT IN AN ENVIRONMENT WHERE THE

STORAGE TEMPERATURE MAY GO BELOW -20° C (-4° F) OR ABOVE 60° C
(140° F). THIS COULD DAMAGE THE EQUIPMENT. THE EQUIPMENT
SHOULD BE IN A CONTROLLED ENVIRONMENT.

16. CAUTION: DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY

REPLACED. REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE
RECOMMENDED BY THE MANUFACTURER, DISCARD USED BATTERIES
ACCORDING TO THE MANUFACTURER'S INSTRUCTIONS.

17. The sound pressure level at the operator's position according to IEC 704-1:1982

is no more than 70 dB (A).

DISCLAIMER: This set of instructions is given according to IEC 704-1. Advantech
disclaims all responsibility for the accuracy of any statements contained herein.

ADAM-4572 Series User Manual iv

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

1.1 Overview ................................................................................................... 2

1.2 Features .................................................................................................... 2

1.3 Package Check List .................................................................................. 3

Chapter 2 Getting Started.....................................5

2.1 Understanding Modbus Gateways ............................................................ 6

2.1.1 Protocol Overview......................................................................... 6

Figure 2.1 Modbus System Architecture 1................................... 7

Figure 2.2 Modbus System Architecture 2................................... 7

2.1.2 Modbus RTU................................................................................. 8

2.1.3 Modbus ASCII............................................................................... 8

Table 2.1: Comparison of Modbus RTU and ASCII Modes......... 8

2.1.4 Modbus TCP ................................................................................. 8

2.2 Specifications ............................................................................................ 9

2.3 Hardware................................................................................................. 10

2.3.1 LED Indicators ............................................................................ 10

Table 2.2: The Advantech Modbus Gateway LED Indicators.... 10

2.3.2 Dimensions (Units: mm).............................................................. 11

Figure 2.3 Front View of the Advantech Modbus Gateway ....... 11

Figure 2.4 Back View of the Advantech Modbus Gateway........ 11

Figure 2.5 Bottom View of the Advantech Modbus Gateway .... 12

Figure 2.6 Side View of the Advantech Modbus Gateway......... 12

2.4 Connecting Hardware ............................................................................. 13

2.4.1 Choosing the Location ................................................................ 13

Figure 2.7 The Advantech Modbus Gateway Panel Mounting

Bracket Dimensions.................................................. 14

Figure 2.8 The Advantech Modbus Gateway Panel Mounting .. 14

Figure 2.9 DIN-rail Adapter........................................................ 15

Figure 2.10DIN-rail Mounting...................................................... 15

2.4.2 The Advantech Modbus Gateway Serial Port Wiring.................. 16

Figure 2.11Pin assignment of 3P to DB 9 cable ......................... 16

Figure 2.12Wiring RS-232 Connection ....................................... 16

Figure 2.13Wiring RS-485 Connection ....................................... 17

Figure 2.14Wiring RS-422 Connection ....................................... 17

Chapter 3 Configuration .....................................19

3.1 Installing the Configuration Utility............................................................ 20

3.2 Starting the Configuration Utility.............................................................. 23

3.3 Discovering Modbus Gateways............................................................... 24

3.3.1 Auto Searching ........................................................................... 24

3.3.2 Clear Device List and Search Again ........................................... 27

3.3.3 Manual Appending ...................................................................... 27

3.4 Setting Ethernet Parameters................................................................... 28

3.5 Setting Serial Communication Parameters ............................................. 30

3.5.1 Basic Configuration..................................................................... 30

3.5.2 Operation Configuration.............................................................. 32

3.6 System .................................................................................................... 36

3.7 Function Accessible Setting .................................................................... 37

3.8 Monitoring Modbus Status ...................................................................... 38

3.9 Administrator Settings ............................................................................. 39

3.9.1 Import Export Device Settings .................................................... 39

3.9.2 Import/Export Serial Port Setting ................................................ 39

3.9.3 Locate the Modbus Data Gateway.............................................. 40

3.9.4 Lock Device ................................................................................ 40

1 ADAM-4572 User Manual

3.9.5 Restore to Factory Default Settings............................................ 41

3.9.6 Update Firmware ........................................................................ 42

Appendix A Slave ID Mapping Mechanism.......... 45

A.1 Slave Mode ............................................................................................. 46

Figure A.1 : Master Mode Slave ID Mapping Example .............. 46

A.2 Master Mode ........................................................................................... 47

Figure A.2 : Master Mode Slave ID Mapping Example .............. 47

Appendix B Modbus Exception Codes ................ 49

B.1 Modbus Exception Codes ....................................................................... 50

ADAM-4572 User Manual 2

Chapter 1

1 Introduction

1.1 Overview

Advantech’s Modbus GatewayModbus Gateway is a robust, feature-rich, and cost
effective way to integrate of Ethernet and Serial Modbus devices. The Advantech’s
Modbus Gateway provides one, two or four serial ports, one or two Ethernet ports, a
wide range of power inputs, and a compact slim design, making them an ideal
solution for connecting multiple Modbus/ RTU and Modbus/ASCII serial devices to
Modbus TCP (Ethernet).

Originally developed for PLCs in industrial automation and manufacturing control
applications, Modbus is one of the most popular open standard protocols in use
today. The communication mode can be Modbus RTU/ASCII (Serial) or Modbus TCP
(Ethernet). Many industrial devices use Modbus as their communication standard.
However, the Ethernet-based Modbus protocol is different from the original serial­based protocols that a Modbus Gateway is needed to be a bridge for integration.

The Modbus/RTU and Modbus/ASCII protocols define how a “master” device polls
one or more “slave” devices and write real-time data over RS-232, RS-422, or RS­485 serial data communication. The Advantech’s Modbus Gateway provides a fea­ture that can allow users to select master or slave operation for each serial port. The
Advantech’s Modbus Gateway not only allows Ethernet master can control serial
slaves, but also allow serial masters to control Ethernet or serial slaves.

The Advantech’s Modbus Gateway supports various operating modes: RTU Master,
RTU Slave, ASCII Master, and ASCII Slave.

1.2 Features

 Provides a 10/100 Mbps auto-sensing Ethernet port
 Compact design without any hardware configuration
 Integration of Modbus TCP and Modbus RTU/ASCII networks
 Supports COM port's baud rate up to 921.6 kbps
 Supports up to 16 TCP connections and 32 requests simultaneously
 Supports 31 slaves (RS-485) per serial port
 Provides easy to use configuration utility
 Software selectable RS-232/422/485 communication
 Auto searching slave ID over configuration utility
 Mounts on DIN-rail, wall, or panel

ADAM-4572 User Manual 2

1.3 Package Check List

 1 x Advantech’s Modbus Gateway
 1 x Document and software CD
 1 x DIN-rail kit
 1 x 30 cm 3P to DB9 cable for RS-232 connection

Note! Please check above items, if any one of them is missing or damaged,

contact your sales representative.

Chapter 1 Introduction

3 ADAM-4572 User Manual

ADAM-4572 User Manual 4

Chapter 2

2 Getting Started

2.1 Understanding Modbus Gateways

Networks have become increasingly vital for industrial automation applications. Many
control devices today do not have a network port and can only communicate with a
dedicated local PC or control panel. Advantech’s revolutionary network-enabling
technology is now allowing control devices with serial ports to connect to the Ethernet
and share networks quickly and cost-effectively. The Advantech Modbus Gateway is
network-based, Modbus gateways for integrating new and existing Modbus/RTU and
Modbus/ASCII serial devices to newer TCP/IP networked-based devices.
Manufacturers, system integrators, and end users can now take advantage of
Modbus gateways to create networked applications for remote managing and
accessing data for their control devices that wasn’t possible before.

2.1.1 Protocol Overview

Originally developed for PLCs in industrial automation and manufacturing control
application, Modbus has become one of the most popular open standard protocols in
use today. When it comes to planning data communication for open, multi-vendor
industrial control systems, Modbus is the first choice of end-users and integrators.
Although it’s not the most powerful protocol available, its rare simplicity allows not
only rapid implementation, but also remains flexible enough to be applied in virtually
all industrial situations. The communication mode of Modbus can be ASCII, RTU, or
TCP/IP. Modbus gateways are used to support applications such as protocol conver­sion between serial (Modbus/ASCII or Modbus/RTU) and networked (Modbus/TCP)
Modbus devices or it can be used to bridge Modbus serial devices over TCP/IP net­work.

The Modbus/RTU and Modbus/ASCII protocols define how a “master” device polls
one or more “slave” devices to read and write real-time data over RS-232, RS-422, or
RS-485 serial data communication. The simplicity of Modbus/RTU not only allows
rapid implementation, but can also remain flexible enough to be applied in virtually all
industrial situations.

During Modbus network communication, the protocol determines how each controller
will know its device address, recognize a message addressed to it, determine the
kind of action to be taken, and extract any data or other information contained in the
message. If a reply is required, the controller will construct the reply message and
send it back using Modbus protocol.

The way controllers communicate with each other is by using a master-slave tech­nique, in which only one device (the master) can initiate queries. The other devices
(the slaves) respond by supplying the requested data to the master, or by taking the
action requested in the query. Typical master devices include host processors and
programming panels. Typical slaves include programmable controllers.

It is the master that can address individual slaves and initiate a broadcast message
to all slaves. On the other hand, slaves return a response to queries that are
addressed to them individually. Responses are not returned to broadcast queries
from the master.

ADAM-4572 User Manual 6

The Modbus protocol has a definite format for the master’s query, which incorporates
the device (or broadcast) address, a function code defining the requested action, any
data to be sent, and an error-checking field. The slave’s response message, which is
also constructed using Modbus protocol, contains fields confirming the action taken,
any data to be returned, and an error-checking field. If an error occurred in receipt of
the message, or if the slave is unable to perform the requested action, the slave will
construct an error message and send it as its response.

The basic system architecture is as below:

Chapter 2 Getting Started

Figure 2.1 Modbus System Architecture 1

Figure 2.2 Modbus System Architecture 2

7 ADAM-4572 User Manual

2.1.2 Modbus RTU

The Modbus/RTU protocol defines how a “master” device polls one or more “slave”
devices to read and write data in real-time over RS-232, RS-422, or RS-485 serial
data communication.

When using RTU mode, each 8-bit byte in a message contains two 4-bit hexadecimal
characters. The main advantage of this mode is that its greater character density
allows better data throughput than ASCII mode for the same baud rate. Neverthe­less, each message must be transmitted in continuous stream.

2.1.3 Modbus ASCII

When using ASCII mode, each 8-bit byte in a message is sent as two ACSII charac­ters. The primary advantage of this ASCII mode is that it allows time intervals of up to
one second to occur between characters without causing an error.

Table 2.1: Comparison of Modbus RTU and ASCII Modes

Mode RTU ASCII

Coding System 8-bit binary.

Bits per Byte 1 start bit,

Error Check CRC LRC

Two hexadecimal
character contained in
each ASCII character of
the message

8 data bits,
1 bit for even/odd parity;
no bit for parity
1 stop bit if parity is used;
2 bits if no parity

Hexadecimal.
One hexadecimal
character contained in
each ASCII character of
the message

1 start bit ,
7 data bits,
1 bit for even/odd parity;
no bit for parity
1 stop bit if parity is used;
2 bits if no parity

2.1.4 Modbus TCP

As a new extension of Modbus/RTU, the Modbus/TCP protocol defines how Modbus/
RTU messages are encoded within and transported over TCP/IP-based networks.
Modbus/TCP is just as simple to implement and flexible to apply as the original Mod­bus/RTU. The Modbus/TCP protocol is defined by its form of encapsulation for a
Modbus request or response. That means the Modbus request or response data is
encapsulated in TCP frame that has a six-byte header in Modbus/TCP protocol.

Modbus/TCP enables the use of Modbus messaging in an Intranet running the TCP/
IP protocols. Modbus/TCP is most commonly used for Ethernet attachment of PLC’s
or I/O modules to other simple field buses or I/O networks.

ADAM-4572 User Manual 8

2.2 Specifications

LAN

Ethernet 10/100 Mbps, RJ45

Protection Built-in 1.5 KV magnetic isolation

Serial Interface

Interface RS-232/422/485

No. of Ports 1
Connector Type Terminal block

Parity None, Even, Odd, Space, Mark

Data bits 7, 8
Stop bits 1, 2

Flow Control RTS/CTS, XON/XOFF

Speed 50 bps to 921.6 kbps

Signals

RS-232 TxD, RxD, GND
RS-422 Tx+, Tx-, Rx+, Rx-, GND

RS-485 Data+, Data-, GND

Protection 15 KV ESD for all signals

Chapter 2 Getting Started

Software Features

Operation Mode Modbus RTU master/slave, Modbus ASCII master/slave
Utility Serial Device Server Configuration Utility

Power Requirements

Power Input 10 to 30 VDC

Power Connector Terminal block
Power Consumption 2.5W

Environment

Operating Temperature 0 to 60 °C (32 to 140 °F)

Storage Temperature -20 to 80 °C (-4 to 176 °F)

9 ADAM-4572 User Manual

2.3 Hardware

The following instructions will give the overview of the Advantech Modbus Gateway
hardware and its installation.

2.3.1 LED Indicators

There are LEDs display the two sets of power status, system status, dual networks
status, and serial communication status on the front panel of the Advantech Modbus
Gateway. Each of them has its own specific meaning as below table.

Table 2.2: The Advantech Modbus Gateway LED Indicators

LED Name LED Color Status LED Description

Status/Power GREEN ON Heartbeat (1 time/sec), system is ready

RED ON Power is on

Speed/Link GREEN ON 100 Mbps speed

RED ON Valid network link

Serial GREEN ON Data being transmitted

RED ON Data being received

OFF System is not working

OFF Power is off

OFF 10 Mbps speed

OFF Invalid network link

OFF No data being transmitted

OFF No data being received

ADAM-4572 User Manual 10

2.3.2 Dimensions (Units: mm)

Advantech’s Modbus Gateway

Chapter 2 Getting Started

Figure 2.3 Front View of the Advantech Modbus Gateway

Figure 2.4 Back View of the Advantech Modbus Gateway

11 ADAM-4572 User Manual

Figure 2.5 Bottom View of the Advantech Modbus Gateway

Figure 2.6 Side View of the Advantech Modbus Gateway

ADAM-4572 User Manual 12

2.4 Connecting Hardware

In this instruction, it will explain how to find a proper location for your Modbus
Gateways, and how to connect to the network, hock up the power cable, and connect
to the the Advantech Modbus Gateway.

2.4.1 Choosing the Location

Due to thier innovative design, the Advantech Modbus Gateway can be:

 Fixed to a panel mount

Chapter 2 Getting Started

13 ADAM-4572 User Manual

 Fixed to a DIN-rail

Figure 2.7 The Advantech Modbus Gateway Panel Mounting Bracket

Dimensions

Figure 2.8 The Advantech Modbus Gateway Panel Mounting

ADAM-4572 User Manual 14

DIN-rail Mounting

The Advantech Modbus Gateway can be mounted on a standard DIN-rail. The DIN­rail kit is screwed on the Modbus data gateway when out of factory. If the DIN-rail kit
is not screwed on the Advantech Modbus Gateway, please screw the DIN-rail kit on
the Modbus data gateway first.

Chapter 2 Getting Started

Figure 2.9 DIN-rail Adapter

Figure 2.10 DIN-rail Mounting

15 ADAM-4572 User Manual

2.4.2 The Advantech Modbus Gateway Serial Port Wiring

We recommend that shielded-twisted-pair cables that comply with the EIA RS-485
standard be used with the ADAM network to reduce interference. Only one set of
twisted-pair cables is required to transmit both Data and RTS signals. We advise that
the following standard colors (as indicated on the modules) be used for the communi­cation lines:

Data+ (Y) -> Yellow

Data- (G) -> Green

 1

WHITE

RED

 2

 3
 4

BLACK

 5

 6
 7

 8

 9

TX: Transmitted Data DTR: Data Terminal Ready

RX: Received Data CTS: Clear To Send

RTS: Request To Send N/C: No Connection

DSR: Data Set Ready CD: Carrier Detect

SHIELD

Rx

Tx

DTR

GROUND

DSR

RTS

CTS

NC

Figure 2.11 Pin assignment of 3P to DB 9 cable

Wiring for RS-232 Connection

Figure 2.12 Wiring RS-232 Connection

ADAM-4572 User Manual 16

Wiring for RS-485 Connection

Figure 2.13 Wiring RS-485 Connection

Wiring for RS-422 Connection

Chapter 2 Getting Started

Figure 2.14 Wiring RS-422 Connection

17 ADAM-4572 User Manual

ADAM-4572 User Manual 18

Chapter 3

3 Configuration

3.1 Installing the Configuration Utility

The following section will show you how to install Advantech Serial Device Server
Configuration Utility, a tool to set up and monitor the EKI series Modbus Data
Gateways.

Note Be sure the Microsoft .NET Framework on your host PC is

greater than version 2.0 .

1. Insert the Advantech INET Series Driver Utility CD-ROM into the CD-ROM
drive (e.g. E:\) on the host PC.

2. Use Windows explorer or the Windows Run command to execute the setup
program, the path for the setup program on the CD-ROM should be:

E:\Utility&Driver\SerialDeviceServerConfigurationUtility\Serial_Device_
Server_Configuration_Utility_[Version]_Release_[date].exe

3. If there is an existed COM port mapping utility on the host PC, you have to
remove it and reboot, then go on installing.

4. Once the InstallShield Wizard starts running, click “Next” when the welcome
window opens to proceed with the installation.

ADAM-4572 User Manual 20

5. Carefully read the Software License Agreement, and press "I Agree" to
continue.

Chapter 3 Configuration

6. The InstallShield will specify a default installation path, C:\Program
Files\Advantech eAutomation\Serial Device Server Configuration Utility.

21 ADAM-4572 User Manual

7. After few minutes, a message will indicate that Configuration Utility is suc­cessfully installed, click “Finish” to exit the InstallShield.

ADAM-4572 User Manual 22

3.2 Starting the Configuration Utility

Advantech provides an easy-to-use configuration utility to configure your Modbus
Gateways through an Ethernet connection. For secure administration, it can also
restrict the access rights for configuration to only one host PC to enhance network
security. With this secure function enabled, other PCs will not have permission for
configuration. After the installation program on the Advantech IEDG Series Driver
Utility CD-ROM is finished, the serial device servers will be ready for use and config­ure.

You may open the Serial Device Server Configuration Utility from the Windows Start
Menu by clicking Start  All Programs  Advantech eAutomation  Serial
Device Server Configuration Utility. The Serial Device Server Configuration Utility
will appear as below figure.

There are four major areas in the new Serial Device Server Configuration Utility.

1. Serial Device Servers List Area: All devices will be searched and listed in this
area. You can arrange different favorite group and virtual COM ports.

2. Serial Device Servers Information Area: Click on the devices or move cursor to
the devices, the related information will be shown in this area.

3. Configuration Area: Click on the items on the Serial Device Sever List Area, the
configuration page will be displayed in this area.

4. Quick Tool Bar: Useful management functions’ shortcuts.

Chapter 3 Configuration

23 ADAM-4572 User Manual

3.3 Discovering Modbus Gateways

3.3.1 Auto Searching

Advantech Serial Device Server Configuration Utility will automatically search all the
EKI, ADAM and EDG series device servers on the network and show them on the
Serial Device Server List Area of the utility. The Utility provides an auto-searching
function to show your device(s) by simply executing the configuration utility program
from the Start Menu.

From here all devices on the same network domain will be searched and display on
the Serial Device Server List Area. You can click on the device name to show the fea­tures of the specific device. Click on the "+" before the model name (e.g. EKI-1224),
and the utility will expand the tree structure to show the individual device name. Click
on the “-“ before the model name (e.g. EKI-1224), and the utility will collapse the tree
structure.

For example, EKI-1224 in this figure is shown “EKI-1224-A6A1D4” after expending
the tree structure.

Note When you configure the device for the first time, the default device name is

“MAC ID”. In this case, the device name “EKI-1224-A6A1D4” means the
device’s Mac ID is “00 D0 C9 A6 A1 D4”. You can change the device name
in System Tab of Device Property.

ADAM-4572 User Manual 24

Select the device in this sub-tree. The first tab on the “Configuration Area” shows the
summary of “Basic Information” included device type, firmware version, and device
name, “Ethernet Information”, and “Serial Port Information”. In the serial port informa­tion frame, it displays the operation mode, status and connected host IP.

Chapter 3 Configuration

Click on the “+” before the device name, and the utility will expand the
communication interfaces on this Modbus data gateway.

Click on each interface item, you will entry the configuration page to modify the set­ting. The configuration will be introduced on following sections.

25 ADAM-4572 User Manual

ADAM-4572 User Manual 26

3.3.2 Clear Device List and Search Again

You can click the “Clear Device List and Search Again” button on the Quick Tool

Bar and the utility will clear all list device servers in the Serial Device Server List
Area and re-search again. Don’t use this function frequently, or the warning message

will be pop-up.

You also can click the “Search Again” button on the Quick Tool Bar and the util­ity will search serial device servers on the local LAN.

3.3.3 Manual Appending

Using “Add IP address to Favorite” or “Search a Range of IP addresses” functions,
you are allowed to add one device or group of devices to “Favorites”. These devices
can locate on local network domain or other network domain.

Chapter 3 Configuration

27 ADAM-4572 User Manual

3.4 Setting Ethernet Parameters

Click on the “+” before the model name (e.g. EKI-1224), and the utility will expand the
tree structure to show the individual device name. And clink on the “+” before the
device name, and utility will expand the communication interfaces on this Modbus
data gateway. Select the Ethernet interface (Eth1 or Eth2, these are two individual
Ethernet ports).

ADAM-4572 User Manual 28

MAC Address:
The MAC address is for the local system to identify and locate each serial device

servers. This MAC address is already set before delivery from factory, hence no need
for further configuration.

IP Address, Subnet Mask, Default Gateway:

You can choose from four possible IP Configuration modes --- Static, DHCP, BOOTP,
and DHCP/BOOTP.

Static IP

User defined IP address, Subnet Mask, and Default Gateway.
DHCP + Auto-IP

DHCP Server assigned IP address, Subnet Mask, Default Gateway, and

DNS.

BOOTP + Auto-IP

BOOTP Server assigned IP address.

DHCP + BOOTP + Auto-IP

DHCP Server assigned IP address, Subnet Mask, Default Gateway, and

DNS, or BOOTP Server assigned IP address. (If the DHCP Server does not

respond)

Chapter 3 Configuration

Note When you have finished the configuration of these settings for each cate-

gory, please press the “Apply” button in order to make these settings effec­tive on the Modbus data gateway. (Will reboot your Modbus gateway
immediately)

29 ADAM-4572 User Manual

3.5 Setting Serial Communication Parameters

Click on the "+" before the model name (e.g. EKI-1224), and the utility will expand the
tree structure to show the individual device name. And click on the “+” before the
device name, and the utility will expand the interfaces on this device server. Select
the serial interface. (Port1 to Port4 on e.g. EKI-1224)

3.5.1 Basic Configuration

Description:

You can give a more detailed description on the function of the port for easier man­agement and maintenance. Descriptions have a limit of 128 characters.

ADAM-4572 User Manual 30

Type:
Each Advantech Modbus Gateway offers 3 kinds of serial interfaces, RS-232, RS-

485 and RS-422. You can use any one of these serial interfaces according to your
requirements. You must also pay special attention to the wiring scheme serial con­nection to make sure it conforms to the serial type you select.

Baud Rate:

The Advantech Modbus Gateway supports baud rates from 50 bps to 921.6 Kbps.
When setting the baud rate, please note that the value should conform to the current
transmission speeds of connected devices.

Chapter 3 Configuration

Parity, Data bits, Stop bits:

The settings for these parameters depend on the protocol that is running on the con­nected Modbus device (i.e. Modbus/ASCII or Modbus/RTU).

Modbus/ASCII

Parity None Even or Odd

Data bits

Stop bits

77

21

Modbus/RTU

Parity None Even or Odd

Data bits

Stop bits

88

21

31 ADAM-4572 User Manual

3.5.2 Operation Configuration

The Operation tab is for each serial port’s operation mode configuration. The opera­tion mode determines whether the devices that are connected to the serial port will
operate as a master or a slave, and whether the Modbus RTU or Modbus ASCII pro­tocol will be used.

3.5.2.1 Modbus Slave Mode:

Mode:

This option specifies whether the Modbus RTU or Modbus ASCII slave devices are
connected to the serial port.

ADAM-4572 User Manual 32

Response Timeouts (ms):

This option specifies the time duration in milliseconds for the Advantech Modbus
Gateway to wait for a response after it has issued a command while using Modbus/
RTU or Modbus ASCII. After the timeout is expired and no response is received, the
Advantech Modbus Gateway will regard the command as failed. Note that the
timeout for the host PC must be greater than the timeout setting here specified,
otherwise an error will occur.

Frame Break (ms):

This option specifies the time interval in milliseconds between characters within the
Modbus/ASCII message. If a greater interval occurs, the receiving device assumes
an error has occurred.

Delay Time (ms):

Sometimes, some slave devices can't process the request that’s too close. The
Advantech Modbus Gateway can be delayed by a specified time to avoid this kind of
behavior limitation.That means, after getting the response frame from slave device,
the Advantech Modbus Gateway will delay a specified time before sending next
queued command.

Chapter 3 Configuration

33 ADAM-4572 User Manual

Slave ID Information:
The Advantech Modbus Gatewayseries features an excellent function that the utility
will scan slave ID automatically. Click “Scan Slave ID” button, and the utility will start
to issue the requests to the devices connected to this serial port and wait the reply
about slave ID information. Alternative option, the utility allows to manual add or
delete slave ID information.

Note! The Advantech Modbus Gateway series uses a standard Modbus com-

mand to query the slave device. According to the Modbus standard, no
matter whether the command or address is supported or not, the device
should respond with the correct frame or exception code. Sometimes,
some device doesn't respond with any exception code, that will make
the scan mechanism fail to fetch the slave ID list.

ADAM-4572 User Manual 34

MAP Slave ID

The Advantech Modbus Gateway features another excellent function that you can
map the real slave device ID to be the virtual slave device ID. Just key in the slave ID
you want to map in the column “Map ID”.

3.5.2.2 Modbus Master Mode:

Chapter 3 Configuration

Mode:
This option specifies whether the Modbus RTU or Modbus ASCII master device is

connected to the serial port.

Response Timeout (ms):

This option specifies the time duration in milliseconds for the Advantech Modbus
Gateway to wait for a response after it has issued a command while using Modbus/
RTU or Modbus ASCII. After the timeout is expired and no response is received, the
Advantech Modbus Gateway will regard the command as failed.

35 ADAM-4572 User Manual

Frame Break (ms):
This option specifies the time interval in milliseconds between characters within the

Modbus/ASCII message. If a greater interval occurs, the receiving device assumes
an error has occurred.

Slave IP Information:

This option specifies the slave IP address and slave ID of the Modbus TCP slave
device or another Advantech Modbus Gateway acts as the Modbus slave device.
Type the IP address in the column and its slave ID range, then click “Add” or “Delete”
button to add or remove the slave IP list.

3.6 System

Users can set the device configuration in this page.

Firmware Version:

The firmware version is shown in this field. It can't be modified. Users should provide
this information when reporting any problem or inquiry.

Device Name:

Users can specify the device name. The device name also will be shown in the
device list area. It is useful when managing or monitoring several EKI devices.

Device Description:

User can specify the description for memory or identification usage.

ADAM-4572 User Manual 36

Modbus/TCP Listen Port:

Users can specify the socket port, other than use the default 502 port.

Modbus/TCP Host Idle Time(s):

In complex network environment, the broken of connection can't be detected quickly.
In standard operation system, such as Windows or Linux, it may take a long time to
make sure the socket connection is broken. Advantech Modbus gateway provides
the host idle time setting. If there is no any request in specified time, device will treat
the connection as broken one and release the relative resource for accepting further
possible coming connection.

Enable Modbus Slave Mapping:

This option is design only for 1 serial port model, Advantech’s Modbus Gateway, EKI­1221 and EKI-1221D. With this option enabled, user can bypass the slave ID map­ping. The Modbus request will send to serial port after translated, but keep the same
slave ID.

3.7 Function Accessible Setting

Chapter 3 Configuration

The Advantech Modbus Gateway provides a security function that the utility allows to
set up an accessible IP list for Modbus TCP devices which can access data from
Modbus data gateway.

Allow any IP access:
The default option, any Modbus TCP device can communicate with this Modbus data

gateway.

37 ADAM-4572 User Manual

Specified IP which can access:
Type the IP address in the column and click “Add” or “Delete” button to make the

accessible IP address list. The limit of this list is 32 IP addresses.

3.8 Monitoring Modbus Status

Configuration utility provides an excellent function that allows monitoring the serial
ports’ status. It will present each serial port’s operation mode and status. The IP
address of the Modbus TCP device which is communicating with serial port will be list
on the right window. Click “Refresh” button, the status will be refresh once. It will be
auto refresh after click “Auto Refresh” and the time duration is depending on the set­ting (the default value is 1000ms).

ADAM-4572 User Manual 38

3.9 Administrator Settings

The configuration utility provides several administrator settings for easy management
and configuration. Right click the mouse on the device name in the sub-tree of Serial
Device Sever List Area, and select these administrator settings.

3.9.1 Import Export Device Settings

The utility allows importing or exporting the whole device setting via “.conf” file for­mat.

Chapter 3 Configuration

3.9.2 Import/Export Serial Port Setting

The utility allows importing or exporting the serial port setting including “Basic Set­ting” and “Operation Setting” via “.sps” file format.

39 ADAM-4572 User Manual

3.9.3 Locate the Modbus Data Gateway

If there are many Modbus data gateways need your management, you may need to
identify which unit is correct to configuration on utility. Click “Locate” to make that
unit’s “Status” LED be steady on until you click “Stop Locate”.

3.9.4 Lock Device

The configuration utility provides the “Lock Device” function to make it more confiden­tial. You need to set up a password while the first time clicking “Lock Device”. Be sure
to click “Reset Device” to restart the Modbus gateway and store your setting pass­word into the memory.

Click “Unlock Device” to unlock the Modbus data gateway, and you need to fill in the
password you have set up before. If you forgot the password, the only way to solve
this problem is to restore the setting of the Modbus data gateway to the factory
default which will be introduced next section.

ADAM-4572 User Manual 40

Chapter 3 Configuration

If you want to disable this function or change the password, click “Change Password”
to change the password to default “None” (leave the new password and confirm new
password columns blank) to disable this function or other password you want to
change. Be sure to click “Reset Device” to restart the Modbus gateway and store the
new password into the memory.

3.9.5 Restore to Factory Default Settings

The configuration utility provides this function to let you can restore the Modbus data
gateway to factory default settings. The confirm message will be pop-up while click­ing “Restore to Factory Default Settings”. If you really want to restore the Modbus
data gateway to factory default settings, please click “Yes” button to continue.

Then, please power off the Modbus data gateway within ten seconds, after recon­necting the power back, the all setting will be reset to the factory default. If the power
remains more than ten seconds, the Modbus data gateway will not have any
changes.

41 ADAM-4572 User Manual

3.9.6 Update Firmware

Advantech continually upgrades its firmware to keep up with the ever-expending
world of computing. You can use the update firmware function in the utility to carry
out the upgrade procedure. Please access Advantech’s website:

http://www.advantech.com to download the latest version of the firmware.

1. Right click on the device name and select “Update Firmware” function.

ADAM-4572 User Manual 42

2. Select the firmware file you want to update.

Chapter 3 Configuration

3. After downloading the firmware completely, click “OK” button, and the Modbus

data gateway will restart automatically.

43 ADAM-4572 User Manual

ADAM-4572 User Manual 44

Appendix A

A Slave ID Mapping

Mechanism

A.1 Slave Mode

Figure A.1 : Master Mode Slave ID Mapping Example

For example shown in above, when Advantech Modbus gateway getting request
from Modbus/TCP master device with target slave ID 3, the slave ID in the request
will translate/transformer into 8 and sent to relative serial port. After get response
from serial slave device with slave ID 8, the slave ID within the Modbus frame will be
translated/transform to slave ID 3 and sent back the Modbus/TCP master.

When Advantech Modbus gateway gets a request from Modbus/TCP master device
with an unmapped slave ID, an exception response with error code 0x0A will be sent
to the Modbus/TCP master device, which means “GATEWAY PATH UNAVAILABLE”.

ADAM-4572 User Manual 46

A.2 Master Mode

Appendix A Slave ID Mapping Mechanism

Figure A.2 : Master Mode Slave ID Mapping Example

For example shown in above, when Advantech Modbus gateway getting request
from Modbus master serial device with target slave ID 8, the slave ID in the request
will translate/transformer into 18(Slave ID 8 + ID Offset 10) and sent to Modbus/TCP
slave device which target IP address is 10.0.0.3. After getting response from Mod­bus/TCP slave device with slave ID 18, the slave ID within the Modbus/TCP frame
will be translated/transform to slave ID 8 and sent back the Modbus master serial
device.

47 ADAM-4572 User Manual

ADAM-4572 User Manual 48

Appendix B

B Modbus Exception

Codes

B.1 Modbus Exception Codes

Advantech’s Modbus Gateway has implemented the standard gateway exception
code: 0x0A and 0x0B. Other exception codes should be implemented by the slave
devices. The Advantech’s Modbus Gateway will pass the exception code transpar­ently.

Code Name Meaning

0x01 ILLEGALFUNCTION

0x02 ILLEGALDATA

ADDRESS

0x03 ILLEGALDATAVALUE

0x04

SLAVE DEVICE
FAI LURE

0x05 ACKNOWLEDGE

0x06

SLAVE DEVICE BUSY Specialized use in conjunction with programming com-

The function code received in the query is not an allow­able action for the server (or slave). This may be because
the function code is only applicable to newer devices, and
was not implemented in the unit selected. It could also
indicate that the server (or slave) is in the wrong state to
process a request of this type, for example because it is
unconfigured and is being asked to return register values.

The data address received in the query is not an allowable
address for the server (or slave). More specifically, the
combination of reference number and transfer length is
invalid. For a controller with 100 registers, the PDU
addresses the first register as 0, and the last one as 99. If
a request is submitted with a starting register address of
96 and a quantity of registers of 4, then this request will
successfully operate (address-wise at least) on registers
96, 97, 98, 99. If a request is submitted with a starting reg­ister address of 96 and a quantity of registers of 5, then
this request will fail with Exception Code 0x02 “Illegal
Data Address” since it attempts to operate on registers
96, 97, 98, 99 and 100, and there is no register with
address 100.

A value contained in the query data field is not an allow­able value for server (or slave). This indicates a fault in
the structure of the remainder of a complex request, such
as that the implied length is incorrect. It specifically does
NOT mean that a data item submitted for storage in a reg­ister has a value outside the expectation of the application
program, since the MODBUS protocol is unaware of the
significance of any particular value of any particular regis­ter.

An unrecoverable error occurred while the server (or
slave) was attempting to perform the requested action.

Specialized use in conjunction with programming com­mands.
The server (or slave) has accepted the request and is pro­cessing it, but a long duration of time will be required to do
so. This response is returned to prevent a timeout error
from occurring in the client (or master). The client (or mas­ter) can next issue a Poll Program Complete message to
determine if processing is completed.

mands.
The server (or slave) is engaged in processing a long­duration program command. The client (or master) should
retransmit the message later when the server (or slave) is
free.

ADAM-4572 User Manual 50

0x08

MEMORY PARITY
ERROR

Appendix B Modbus Exception Codes

Specialized use in conjunction with function codes 20 and
21 and reference type 6, to indicate that the extended file
area failed to pass a consistency check.
The server (or slave) attempted to read record file, but
detected a parity error in the memory. The client (or mas­ter) can retry the request, but service may be required on
the server (or slave) device.

0x0A GATEWAYPAT H 

UNAVAILABLE

0x0B

GATEWAY TARGET
DEVICE FAILED TO
RESPOND

Specialized use in conjunction with gateways, indicates
that the gateway was unable to allocate an internal com­munication path from the input port to the output port for
processing the request. Usually means that the gateway
is misconfigured or overloaded.

Specialized use in conjunction with gateways, indicates
that no response was obtained from the target device.
Usually means that the device is not present on the net­work.

51 ADAM-4572 User Manual

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All product specifications are subject to change without notice.
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