B&B Electronics GW-7472 User Manual

GW-7472

EtherNet/IP to Modbus RTU Gateway

User Manual

Warranty

All products manufactured by ICP DAS are under warranty regarding defective materials for a period of one year, starting from the date of delivery to the original purchaser.

Warning

ICP DAS assumes no liability for damages resulting from the use of this product. ICP DAS reserves the right to change this manual at any time without notice. The information published by ICP DAS is believed to be accurate and reliable. However, no responsibility is assumed by ICP DAS for its use, not for any infringements of patents or other rights of third parties resulting from its use.

Copyright

Trademark

The names used for identification only may be registered trademarks of their respective companies.

GW-7472 User Manual, Version 1.0, Dec 2010 --- 1

Table of Contents

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33..22 SSeettttiinngg uupp tthhee GGWW--77447722 mmoodduulle

33..33 TTeessttiinngg tthhee GGWW--77447722 mmoodduulle

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44..11 NNeettwwoorrkk SSccaan

44..22 MMoodduullee CCoonnffiigguurraattiioon

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2.6.1 RS-422 Wire Connections................................ ................................ ................................................. 16

2.6.2 RS-485 Wire Connections................................ ................................ ................................................. 16

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4.2.1 Network Settings .................................................................................................................................. 27

4.2.2 Serial Port Settings .............................................................................................................................. 29

4.2.3 Modbus Request Settings ................................................................................................................. 30

4.2.4 Electric Data Sheet ............................................................................................................................... 31

44..33 MMoodduullee DDiiaaggnnoossttiic

4.3.1 UCMM/Forward Open Class 3 Behavior ................................................................................... 33

4.3.2 Forward Open Class 1 Behavior ................................................................................................... 34

44..44 FFiirrmmwwaarree UUppddaatte

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GW-7472 User Manual, Version 1.0, Dec 2010 --- 2

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33.. MMeessssaaggee RRoouutteerr OObbjjeecctt ((002

44.. AAsssseemmbbllyy OObbjjeecctt ((004

55.. CCoonnnneeccttiioonn MMaannaaggeerr OObbjjeecctt ((006

66.. TTCCPP//IIPP IInntteerrffaaccee OObbjjeecctt ((FF5

77.. EEtthheerrnneett LLiinnkk OObbjjeecctt ((FF6

88.. CCIIPP GGeenneerraall SSttaattuuss CCoodde

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88.. IIPP ((IInntteerrnneett PPrroottooccooll)) aaddddrreesss

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GW-7472 User Manual, Version 1.0, Dec 2010 --- 3

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Packing List

Quick start

The shipping package includes the following items:

One GW-7472 series hardware module

One printed Quick Start Guide One software utility CD

Note!!

If any of these items is missed or damaged, contact the local distributor for more

information. Save the shipping materials and cartons in case you want to ship in the

future.

More Information

Documentations

Fieldbus_CD:\EtherNetIP\Gateway\GW-7472\Document

Firmware

Fieldbus_CD:\EtherNetIP\Gateway\GW-7472\Firmware

Utility

Fieldbus_CD:\EtherNetIP\Gateway\GW-7472\Utility

GW-7472 User Manual, Version 1.0, Dec 2010 --- 4

1. Introduction

The GW-7472 (EtherNet/IP adapter to Modbus RTU Master Gateway) is helpful for dataexchanging between the Modbus RTU network and the EtherNet/IP network. It reads the register data from the Modbus RTU slaves and publishes these data to the input register data of the EtherNet/IP scanner. The output data transmitted by the EtherNet/IP scanner are updated to the register data of Modbus RTU slaves via the GW-7472. Through the GW-7472, all of the Modbus slaves can be regard as one EtherNet/IP adapter. The GW-7472 allows maximum 6 connections for the Explicit Messages and 1 connection for the Implicit Messages at the same time. It means that 7 EtherNet/IP scanners can connect to one GW-7472 at the same time.

The Modbus RTU master functions of the GW-7472 can scan up to 30 Modbus RTU commands. After configuring the Modbus RTU master behavior of the GW-7472 and the mapping status between the Modbus RTU registers and EtherNet/IP registers by using the GW7472 Utility tool, the input/output registers of the Modbus RTU slaves are mapping to the output/input registers of the EtherNet/IP adapter. While booting up, the GW-7472 scans the predefined register addresses in all of the Modbus RTU slaves according to the sequence defined in the utility tool. The input and output register data of the Modbus devices are updated as soon as the GW-7472 could.

In order to save the installation space, the GW-7472 is offered in an amazing tiny formfactor that makes it easy to install in anywhere, even directly attached to a serial device or embedded into a machine. The GW-7472 features a powerful 32-bit MCU to handle efficient network traffic and it provides the IEEE 802.3af-compliant (classification, Class 1) Power over Ethernet (PoE) with a standard category 5 Ethernet cable. Through the NS-205PSE, Poe switch, the GW-7472 can be powered via the Ethernet cable. When there is no PoE switch on site, the GW-7472 provide another way to be powered from DC adapters. These two power interfaces are redundant. If one fails, another will take it over to supply the proper power to the GW-7472.

GW-7472 User Manual, Version 1.0, Dec 2010 --- 5

The following figure briefs the concept of the data exchange between the EtherNet/IP and the Modbus RTU network. In this system, there are three Modbus RTU slaves connected to the Modbus RTU master provided by the GW-7472. The EtherNet/IP adapter interface of the GW-7472 is connected to an EtherNet/IP scanner through an Ethernet switch. Register data of the three Modbus RTU slaves is presented to the EtherNet/IP scanner as the I/O data.

GW-7472 User Manual, Version 1.0, Dec 2010 --- 6

The following figure illustrates how to deploy the register data of the three Modbus devices in the previous example to the EtherNet/IP scanner. Assume that there are 3, 2, and 4 input registers data in the Modbus slaves No.1, No.2 and No.3 respectively. The data format of the register in the Modbus slave No.1, and No.3 is WORD, and that in the Modbus slave No.2 is BYTE. All of these input registers are mapping to the corresponding input registers of the EtherNet/IP adapter of the GW-7472 sequentially by using the BYTE format.

GW-7472 User Manual, Version 1.0, Dec 2010 --- 7

The output register data of the Modbus RTU slaves are mapping in exactly the same way. The Modbus slave output registers are mapping as the output registers of the EtherNet/IP adapter of the GW-7472. Users can set the maximum 500 bytes for input data and 500 bytes for output data which are mapping to the EtherNet/IP adapter of the GW-7472. All of these configurations are defined by using the GW-7472 Utility tool. While the GW-7472 gets the EtherNet/IP commands from the EtherNet/IP scanner, it collects the input register data from Modbus RTU slaves and updates the output register data to the Modbus RTU slaves as soon as possible.

GW-7472 User Manual, Version 1.0, Dec 2010 --- 8

2. Hardware Information

Model

GW-7472

System

CPU

32-bit MCU

Communication Interface

Ethernet

10/100 Base-TX, 8-pin RJ-45 x 1, (Auto-negotiating, Auto-MDI/MDIX, LED indicator) PoE (IEEE 802.3af, Class 1)

COM1

2-wire RS-485 / 4-wire RS-422

Self-Tuner

Yes, automatic RS-485 direction control

UART

16c550 or compatible

COM Port Format

Baud Rate

1200 to 115200 bps.

Data Bit

7, 8

Parity

None, Odd, Even

Stop Bit

1, 2

General

Power Input

PoE: IEEE 802.3af, Class 1 DC jack: +12 ~ 48 VDC

Power Consumption

0.05 A @ 24 VDC

Connector

10-Pin Removable Terminal Block x 1

Mounting

DIN-Rail

Flammability

Fire Retardant Materials (UL94-V0 Level)

Operating Temperature

-25° ~ 75°C

Storage Temperature

-30° ~ 80°C

Humidity

10 ~ 90% RH, non-condensing

2.1 Specifications

GW-7472 User Manual, Version 1.0, Dec 2010 --- 9

2.2 Features

General Features:

Powerful 32-bit MCU handles efficient network traffic 10/100 Base-TX Ethernet, RJ-45 x1

(Auto-negotiating, auto MDI/MDIX, LED Indicators)

Redundant power inputs: PoE (IEEE 802.3af, Class 1) and DC jack Automatically RS-485 direction control Support ARP,TCP, UDP, ICMP, DHCP, BOOTP and TFTP protocols Easy firmware update via Ethernet Removable terminal block connector Tiny form-factor and low power consumption RoHS compliant with Halogen-free Fire retardant materials (UL94-V0 Level)

EtherNet/IP Features:

Ethernet Protocol: EtherNet/IP adapter Maximum number of connections for Explicit Messages: 6 Maximum number of connections for Implicit Messages: 1 Supported I/O connection methods:

 Transport and trigger: Exclusive-Owner, Cyclic  Original to Target Type: POINT2POINT  Target to Original Type: POINT2POINT, MULTICAST

Device Configuration Option: EDS, Utility tool Address Configuration: DHCP, Utility tool EtherNet/IP Input/Output command data size: maximum 500 bytes The numbers of the Modbus RTU slave input registers mapping to the input registers of

the EtherNet/IP adapter of the GW-7472: maximum 500 bytes

The numbers of the Modbus RTU slave output registers mapping to the output registers

of the EtherNet/IP adapter of the GW-7472: maximum 500 bytes

GW-7472 User Manual, Version 1.0, Dec 2010 --- 10

Modbus Features:

Modbus Protocol: Modbus RTU Master Maximum support 30 Modbus RTU commands Supported Modbus RTU Function Codes:

 01  02  03  04  0F  10

: Read Output Status

hex

: Read Input Status

hex

: Read Multiple Data Registers

hex

: Read Input Registers

hex

: Write Multiple Bits

hex

: Write Multiple Data Register

hex

Maximum data size of one Modbus RTU command: 240 bytes

GW-7472 User Manual, Version 1.0, Dec 2010 --- 11

2.3 GW-7472 Front View

Robust insulated and fire retardant case

PoE and Ethernet RJ-45 Jack

+12~+48 VDC Jack

Serial COM Ports

Operating Mode Selector

S1: System LED

indicator

1. PoE and Ethernet RJ-45 Jack:

The GW-7472 is equipped with a RJ-45 jack for the 10/100 Base-TX Ethernet port and

features networking capability. When the Ethernet link is detected and Ethernet packet is

received, the Link/Act LED (Orange) indicator will be turned on. When the power is

supplied via PoE (Power-over-Ethernet), the PoE LED (Green) indicator will be turned on.

GW-7472 User Manual, Version 1.0, Dec 2010 --- 12

Function

System LED Action

Running Firmware

Flashing per second

Hardware checking error

Flashing per 0.3 seconds

Hardware error

blank

Mode

Firmware Running

Flash Protection

Firmware Update

Configuration

Init

No

Yes

Allowed

Run

Yes

No

Not allowed

2. +12~+48 VDC Jack:

The GW-7472 is equipped with a +12~+48 VDC jack for the power supply. When there is

no PoE switch on site, the GW-7472 accepts the power from the DC adapter. Please

refer to the following web site for more details.

http://www.icpdas.com/products/Accessories/power_supply/fra05-s12-su.htm

3. S1: System LED indicator:

After power on the GW-7472, the system LED indicator is as follows:

4. Operating Mode Selector:

Init Mode: Configuration mode

Run Mode: Firmware running mode

Generally, the switch is always in the Run position while the GW-7472 works. Only when

updating or setting the GW-7472, the switch needs to be set to the Init position. Move the

switch to the Run position and then re-power on the GW-7472 after the update is

completed.

GW-7472 User Manual, Version 1.0, Dec 2010 --- 13

2.4 Dimensions

Unit: mm

Front View

Back View

Top View

Bottom View

Right Side View

Left Side View

GW-7472 dimensions:

GW-7472 User Manual, Version 1.0, Dec 2010 --- 14

2.5 Pin Assignment

1-Port 2-Wire RS-485/ 4-Wire RS-422 Module

GW-7472 User Manual, Version 1.0, Dec 2010 --- 15

2.6 Wiring Note

2.6.1 RS-422 Wire Connections

2.6.2 RS-485 Wire Connections

Note!!

For non-isolated RS-422/485 ports, you should connect all signal grounds of RS-422/485 devices together. This reduces common-mode voltage between devices.

GW-7472 User Manual, Version 1.0, Dec 2010 --- 16

3. Setup and Test the GW-7472 module

3.1 Install the GW-7472 Utility

Step 1: Get the GW-7472 Utility

The software is located at:

Fieldbus_CD:\EtherNetIP\Gateway\GW-7472\Utility

http://ftp.icpdas.com/pub/cd/fieldbus_cd/ethernetip/gateway/gw-7472/utility/

Step 2: Install .NET Framework 4 component

The GW-7472 Utility tool requires the Windows Installer 3.1 and the .NET Framework 4 components. These components can be obtained from the web site.

GW-7472 User Manual, Version 1.0, Dec 2010 --- 17

Step 3: Install Utility tool

After installing the .Net Framework components, please run the GW-7472 Utility setup file.

1. Click the “Next” button to continue.

2. Select the installation path of the GW-7472 Utility and click the “Next” button.

GW-7472 User Manual, Version 1.0, Dec 2010 --- 18