B&B Electronics GW-7472 Manuel utilisateur

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

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 --- 2

Table of Contents

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16

6

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

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

3

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26

6

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

4

4.

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2

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

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

4

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

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9

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

Packing List

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

Quick start

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

1. Introduction

The GW-7472 (EtherNet/IP adapter to Modbus RTU Master Gateway) is helpful for data-

exchanging 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 GW-

7472 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 pre-

defined 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 form-

factor 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 --- 6

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 --- 7

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 --- 8

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 --- 9

2. Hardware Information

2.1 Specifications

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

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

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

B&B Electronics GW-7472 Manuel utilisateur

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