B&B Electronics GW-7553 - Quick Start Guide - Manual (Page 7)

5. GW-7553 module communication test
This demo uses utility “MBTCP” on the PC to communicate with the GW-
7553. The User can download it on the web site:
http://ftp.icpdas.com.tw/pub/cd/8000cd/napdos/modbus/modbus_utility/
. The
settings of the “MBTCP” are shown in the below.
Input GW-7553’s IP (ex: 192.168.0.107) and click “Connect” button
¾ PROFIBUS input test
--Send command to write DO of the GW-7553
The user needs to input command (” 01 0F 00 00 00 10 02 FF FF”) here and
click button to send Modbus command and then MBTCP
can receive response message (” 01 0F 00 00 00 10”). The user can find byte
0, 1 of input data area of PROFIBUS Master device have changed into
“0xFF” at this time, as shown in the below.
Send modbus command (output data: 0xFF, 0xFF)
Receive “0xFF” in input data area of PROFIBUS Master station
Module Byte Data type Representation Value
Input 0 Byte Hex 0xFF
Input module
Input 1 Byte Hex 0xFF
GW-7553 PROFIBUS/Modbus TCP Gateway Quick Start (Version 1.00, DEC/2008) PAGE：7