B&B Electronics GW-7552 Quick Start Guide

GW-7552 PRIFIBUS/MODBUS GATEWAY

Quick Start User Guide

1. Introduction

This manual introduces the GW-7552's basic setting and operating quickly, the user
can refer to the user manual in the ICP DAS companion CD-ROM (Path:
“CD:\PROFIBUS\Gateway\GW-7552\ manual\GW-7552 user manual.pdf”).
This manual helps users to understand about the GW-7552 module and application.
In the following examples the CIF50-PB PROFIBUS master card from Hilscher is
used. The configuration and communication is done by the program “SyCon”
provided by Hilscher.

Application example of PROFIBUS to Modbus

In this example the GW-7552 acts as a Modbus slave device. When the GW-7552
module receives a write DO Modbus command from PC’s COM Port, the GW-7552
module can send the message to the input data area of PROFIBUS master station.
When the GW-7552 module receives a read DI Modbus command from PC’s COM
Port, GW-7552 module can refer to the output data area of PROFIBUS master
station to produce response message and send it to PC’s COM Port.

2. Hardware configuration

RS232 connection Power connection

GW-7552 PROFIBUS/MODBUS GATEWAY Quick Start User Guide (Version 1.30) PAGE：1

PROFIBUS connection

Here we recommend users to use the standard PROFIBUS cable and
connector (DB9 male). It is only needed to use D-type connector via
PROFIBUS cable to connect PROFIBUS master station and GW-7552
module. PROFIBUS master station and GW-7552 module belong to terminal
equipments in this example, thus we need to enable the terminator resistor in
the D-type connector.

Address setting

The GW-7552 is a slave device of PROFIBUS DP protocol. The station address
of GW-7552 can be set by dip switch. The dip switch can be seen by open the
cover, as shown in the below. The range of dip switch is 0~126, here we set
GW-7552 module’s dip switch to 1.

Station

address

1 2 3 4 5 6 7 8

1 1 0 0 0 0 0 0 0

10 0 1 0 1 0 0 0 0

31 1 1 1 1 1 0 0 0

DIP SWITCH(SW1)

LED status indicator

LED Status Description

When the GW-7552 is as a Modbus slave device and receiving
query message form Modbus master device, PWR led will flash.
Power supply is ok.
The firmware has loaded.

When the GW-7552 connects with the utility tool, it will flash
fast (flash once about 55ms).
When the GW-7552 has diagnostic message, it will flash slowly
(flash once about 220ms).
The connection is error with PROFIBUS master device or
PROFIBUS system configuration is not correct.

PWR

ERR

flash

on

off Power supply has failed.

flash

on

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PROFIBUS system configuration is correct.
It is normal operation.
Data exchange mode.
It is normal operation.

RUN

off

on

off GW-7552 module is not in data exchange mode.

3. Establish connection with GW-7552

Before establish the connection between DP-Master and GW-7552, users
should obey the following steps first.

1. First, users must load the
electronic device description file
(GSD file) of the GW-7552 into
the DP-Master.

2. And then set the parameters and
configurations.

3. Finally change your DP-master
from offline state to operate
state. The GW-7552 will be
initialized. If there is no error
occurs, GW-7552 proceeds into
data exchange state. At the
meantime, if there is any error
occurs, GW-7552 will return to
wait for parameterization.

4. Software configuration

GSD file

Please copy the GSD file (IPDS0B87.gsd) and the Bitmap file (ICP_7552.
bmp, i_7552.bmp) from the CD of the GW-7552 module into the Profibus
configuration tool.

File->CopyGSD

(Directory: --> CD:\PROFIBUS\ GATEWAY\GW-7552\GSD\)

¾ the example of how to load GSD file

Here, we use the hilscher CIF50-PB PROFIBUS communication interface to
show how to load GW-7552’s GSD file step by step.

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