3One data GW11 Series User manual

(I)GW11XX Series
Modbus Gateway
User Manual
Document Version: 03
Publication Date: Oct 24, 2017
Industrial Ethernet communication solutions experts Shenzhen 3onedata Technology Co., Ltd.

Copyright © 2017 3onedata Technology Co., Ltd. All rights reserved.
For this manual, all rights reserved by 3onedata Technology Co., Ltd. No company or individual is
allowed to duplicate or translate this manual in any forms without written permission issued by 3onedata
Technology Co., Ltd.
Trademark statement
, and is the registered trademark owned by
Shenzhen 3onedata Technology Co., Ltd. And other trademarks mentioned in this manual belong to
their corresponding companies.
Conventions Used in the Manual
Technical or printing errors might exist in the product or the instruction manual; therefore, Shenzhen
3onedata Technology Co., Ltd. reserves the right to change the manual entirely or partially with no
advance notice required. 3onedata provides this document as is, without warranty of any kind, either
expressed or implied, including, but not limited to, its particular purpose. Due to the improvement of the
management software, the version of software that you are using might not be the latest or the perfect
version. The manual is only for your reference, and please contact us if you have any questions.

Shenzhen 3onedata Technology Co., Ltd.
Address: 3/B, Zone 1, Baiwangxin High Technology Industrial park, Nanshan District, Shenzhen, 518108 China
Tel: [phone]
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Website: http://www.3onedata.com

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Preface
The user manual describes the Modbus Gateway:
Product features
Product network management configuration
Overview of network management principles
The screenshot reference model for this manual is GW1118-8D (3IN1) Modbus. Other
types of products in addition to supporting the serial type (RS-232, RS-422, RS-485), and
the number of network ports and the number of serial ports are different, the interface
functions and interface operations are the same.
Audience
This manual applies to the following engineers:
Network administrators
Technical support engineers
Hardware engineers
Conventions
Format Description
“ ” Words with the symbol “” mean that those are interface
words. Fox example “Port number”.
> Multiple paths are separated by the symbol ‘>’.
Light blue Font Click light blue font to hyperlink The font color is as follows:
‘Light Blue’.
About This Chapter
The section ‘about this chapter’ provides links to various
sections of this chapter, as well as links to the Principles
Operations Section of this chapter.
Symbols
Format Description

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Format Description
Indicates a potentially hazardous situation which, if not
avoided, could result in equipment damage, data loss,
performance deterioration, or unanticipated results.
NOTICE is used to address practices not related to personal
injury.
Ndicates a potentia
lly hazardous situation which, if not
avoided, could result in death or serious injury.
Calls attention to important information, best practices and
tips.
NOTE is used to address information not related to personal
injury, equipment damage, and environment deterioration.
The tips of configuration and operation.
Revision History
Version No. Date Revision note
01 August 14, 2017 Layout Adjustment
02 August 16, 2017 Manual Maintenance
03 October 24,2017 Add dual network ports function

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Contents
PREFACE ......................................................................................................................................... 1
CONTENTS ....................................................................................................................................... I
OVERVIEW ..................................................................................................................................... 1
PART ONE: OPERATION................................................................................................................ 1
1LOGIN THE WEB INTERFACE ............................................................................................. 1
ABOUT THIS CHAPTER .......................................................................................................... 1
1.1 SYSTEM REQUIREMENTS ........................................................................................... 1
1.2 SET THE IP ADDRESS OF THE COMPUTER...................................................................... 2
1.3 LOGIN THE WEB CONFIGURATION INTERFACE ............................................................. 3
1.4 WEB TIMEOUT PROCESSING ...................................................................................... 4
2OVERVIEW ............................................................................................................................. 5
3NETWORK SETTING ............................................................................................................. 7
4SERIAL SETTINGS ............................................................................................................... 10
ABOUT THIS CHAPTER .........................................................................................................10
4.1 COM SETTINGS.......................................................................................................10
4.2 COM INFORMATION.................................................................................................12
5MODBUS SETTINGS ............................................................................................................ 14
ABOUT THIS CHAPTER .........................................................................................................14
5.1 MODBUS PARAMETERS.............................................................................................14
5.2 SLAVE ID................................................................................................................15
6STATE MONITORING .......................................................................................................... 17
ABOUT THIS CHAPTER .........................................................................................................17
6.1 COM STAT E ............................................................................................................17
7ACCESS CONTROL .............................................................................................................. 19
ABOUT THIS CHAPTER .........................................................................................................19
7.1 DEVICE SECURITY ...................................................................................................19
7.2 IP FILTERING...........................................................................................................20
7.3 MAC FILTERING......................................................................................................22
7.4 USER MANAGEMENT ...............................................................................................23
8SYSTEM MANAGEMENT .................................................................................................... 25
ABOUT THIS CHAPTER .........................................................................................................25
8.1 SYSTEM INFORMATION .............................................................................................25

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8.2 SYSTEM FILE ..........................................................................................................26
8.3 LOGOUT &REBOOT .................................................................................................28
9WORKING MODE CONFIGURATION ................................................................................ 29
ABOUT THIS CHAPTER .........................................................................................................29
9.1 RTU MASTER MODE ................................................................................................29
9.2 RTU SLAVE MODE...................................................................................................35
9.3 ASCII MASTER MODE .............................................................................................41
9.4 ASCII SLAVE MODE ................................................................................................46
10 CUSTOMER CASE ................................................................................................................ 53
PART TWO: PRINCIPLE .............................................................................................................. 57
11 MODBUS OVERVIEW .......................................................................................................... 57
ABOUT THIS CHAPTER .........................................................................................................57
11.1 PROTOCOL IMPLEMENTATION ....................................................................................57
11.2 MASTER AND SLAVE WORKING STATE DIAGRAM ..........................................................58
11.3 MODBUS COMMUNICATION PRINCIPLE........................................................................59
11.4 TRANSMISSION MODE ..............................................................................................61
11.5 MODBUS BASIC ARCHITECTURE DIAGRAM ..................................................................64
12 MODBUS SETTINGS ............................................................................................................ 66
ABOUT THIS CHAPTER .........................................................................................................66
12.1 MODBUS PARAMETER SETTINGS ................................................................................66
12.2 SLAVE ID MAPPING .................................................................................................68

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Overview
Introduction
(I)GW11XX is a serial-to-Ethernet Modbus gateway that converts between Modbus
TCP and Modbus RTU/ASCII protocols. It provides several serial ports and 1 or 2
10/100M Ethernet port.
Modbus TCP, Modbus RTU and Modbus ASCII protocol are integrated in the products,
users can easily realize the seamless integration of Modbus Ethernet devices and
Modbus serial devices and even multi master and slave hybrid networks. At the same
time, the user can be set up by Web or Telnet. The simple design can not only realize
the fast application, but also guarantee the application of the entire real industrial
environment.
The products using EMC protection design. Power has over current, over voltage
protection, and can work in rugged environment.
Product Features
Supports multiway serial ports
Supports 1 or 2 10/100M Ethernet port
Supports 1 DC/AC power input
Support 300~115200bps wire-speed non-blocking communication
Support RTU Slave, RTU Master, ASCII Slave and ASCII Master working modes
Support Modbus TCP, Modbus RTU, Modbus ASCII, IP, ARP, DHCP and DNS
protocols
Slave mode support 16 TCP master connections
Master mode support 32 slave TCP connection requests
Support response timeout and interval timeout settings
Support ID mapping function, to achieve the management of the host ID
Support WEB and Telnet configurations
Support IP address and MAC address filtering function
Support cross-gateway and cross-router communication
Provide Windows configuration tools for easy to use, easy to bath install.
No fan, low consumption design, IP30 protection grade

(I)GW11XX Modbus User Manual
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Part One: Operation
1Login the WEB Interface
About This Chapter
Content Hyperlink
This chapter 1.1 System Requirements
1.2 Set the IP address of the Computer
1.3 Login the WEB Configuration Interface
1.4 WEB Timeout Processing
1.1 System Requirements
Using the Modbus Gataway device, the system should meet the following conditions.
Hardware and software System requirements
CPU Pentium 586
Memory 128M above
Resolution 1024x768 or above
Color 256 color or above
Browser Internet Explorer 6.0 or above
Operating system Windows XP
Windows 7

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1.2 Set the IP address of the Computer
The default management of the Modbus Gataway device is as follows:
IP Settings Default Values
IP address 192.168.1.254
Subnet mask 255.255.255.0
When configuring a Gataway through the Web:
Before making remote configuration, make sure that the route between the
computer and the Gataway is reachable.
Before making a local configuration, make sure that the IP address of the
computer and the Gataway are on the same subnet.
Note:
When the switch is first configured, if it is configured locally, make sure the current
computer network segment is 1.
IP configuration example
For example, suppose that the IP address of the computer is 192.168.5.60, need to
change the IP address of the network segment "5" to "1"
Operation steps
The steps are as follows:
Step 1 Open “Control panel > Network connection > Local area connection > Properties >
Internet protocol version (TCP/IPv4) Properties”.
Step 2 Change the "5" selected by the red frame in the figure to "1".