ICP DAS USA GW-7553-B User manual

GW-7553-B / GW-7553-M PROFIBUS/Modbus TCP Gateway User Manual (Version 1.35, May/2017)
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GW-7553-B / GW-7553-M PROFIBUS/Modbus TCP Gateway
User's Manual
High Quality, Industrial Data Acquisition, and Control Products
Warranty
All products manufactured by ICP DAS are under warranty regarding
defective materials for a period of one year from the date of delivery to the
original purchaser.

GW-7553-B / GW-7553-M PROFIBUS/Modbus TCP Gateway User Manual (Version 1.35, May/2017)
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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 furnished by ICP DAS is believed to be
accurate and reliable. However, no responsibility is assumed by ICP DAS
for its use, or for any infringements of patents or other right of third parties
resulting from its use.
Copyright
Copyright 2013 by ICP DAS. All rights are reserved.
Trademark
The names used for identification only may be registered trademarks of
their respective companies.
List of Revision
Date
Author
Version
Revision
2012/05/10
Ryan
1.33
Release
2013/05/30
Elliot
1.34
Release
2017/05/15
Eric
1.35
Add GW-7553-M
information.

GW-7553-B / GW-7553-M PROFIBUS/Modbus TCP Gateway User Manual (Version 1.35, May/2017)
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Table of Contents
1. Introduction 4
1.1 Features 5
1.2 Modules Support 5
1.3 Specification 5
2. Hardware 7
2.1 Block Diagram of GW-7553-B / GW-7553-M 7
2.2 Pin Assignment 7
2.3 Wiring 9
2.4 Setting the PROFIBUS Address 12
2.5 LED status indicator 14
2.6 Normal/Setting DIP switch 15
3. Communication protocol transfer theorem 17
3.1 PROFIBUS data exchange 17
3.2 Modbus data exchange 20
3.3 Communication protocol transfer 23
3.4 PROFIBUS DP-V1 Acyclic Service 28
4. Communication 32
4.1 Field of application 32
4.2 GSD file 33
4.3 The Configuration of the common parameters 35
4.4 The Configuration of the modules 38
4.5 Diagnostic messages 40
4.6 I/O data exchange 42
4.7 Establish connection with GW-7553-B / GW-7553-M 45
4.8 Data exchange example—Modbus RTU 46
4.9 Data exchange example—Modbus TCP 56
5. Application of Utility 93
5.1 Install Utility 93
5.2 Utility introduction 96
5.3 Memory address configuration of the module 98
5.4 Safe value setting 101
5.5 IP setting 103
5.6 Establish connection with GW-7553-B / GW-7553-M 104
6. Configuration with Web Browser 108
6.1 Connecting to Web Server 108
6.2 Web Configuration—Function menu 109
6.3 Web Configuration—Setup page 110
7. Troubleshooting 118
8. Dimensions 120

GW-7553-B / GW-7553-M PROFIBUS/Modbus TCP Gateway User Manual (Version 1.35, May/2017)
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1. Introduction
PROFIBUS and Modbus are two kinds of famous protocols and are wildly used in
the fields of factory and process automation. The GW-7553-B / GW-7553-M is a
PROFIBUS to Modbus TCP gateway. By using this module, users can easily put the
Modbus TCP devices into PROFIBUS network.
Figure 1 shows an application example for the GW-7553-B / GW-7553-M module.
Figure 1 Application architecture of the GW-7553-B / GW-7553-M module
The GW-7553-B / GW-7553-M Gateway is specially designed for the slave device of
PROFIBUS DP protocol. In the Modbus protocol application, the GW-7553-B / GW-
7553-M can be a Modbus Master device or Slave device. The Modbus devices can
exchange data with the PROFIBUS Master device via the GW-7553-B / GW-7553-M
module.

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The main features and specification of GW-7553-B / GW-7553-M are described as
below:
1.1 Features
●16-bit Microprocessor inside with 80MHz
●Profichip VPC3+C PROFIBUS controller
●Support PROFIBUS DP-V0 & DP-V1 slave
●PROFIBUS transmission rate detect automatically
●Max transmission speed up to 12 Mbps for PROFIBUS and 115.2 kbps for
COM Port
●Support Modbus RTU, ASCII and TCP format
●Support Modbus Master/Slave mode
●Support safe value setting
●COM Port driver has 1K bytes QUEUE input buffer & 512 bytes QUEUE
output buffer
●Max length of output/input data is 240/240 Bytes
●Ethernet Port: 10/100 Base-TX
●2500Vrms High Speed iCoupler Isolation Protection for PROFIBUS network
●3000VDC Isolation Protection on the PROFIBUS side
●Provide LED indicators
●Built-in Watchdog
●Mountable on DIN Rail
1.2 Modules Support
Only the following Modbus commands are supported by the gateway.
Table 1 Modbus function codes
Code
Name
Description
01
Read Coil Status
Read the ON/OFF status of discrete outputs in the slave
02
Read Input Status
Read the ON/OFF status of discrete inputs in the slave
03
Read Holding Registers
Read the binary contents of holding registers in the slave
04
Read Input Registers
Read the binary contents of input registers in the slave
05
Force Single Coil
Write a single output to either ON or OFF in the slave
06
Preset Single Register
Write an integer value into a single register in the slave
15
Force Multi. Coils
Write each coil in the sequence of coils to either ON or
OFF in the slave
16
Preset Multi. Registers
Write a block of contiguous registers in the slave
1.3Specification

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COM Port specs:
●Serial port - RS-232
●Serial port interface: screw terminal block
●Baud Rate：2400/4800/9600/19200/38400/57600/115200 bps
●Data Format: 7/8 data bits, None/Odd/Even parity bit, 1/2 stop bit
PROFIBUS specs:
●PROFIBUS interface connector: D-Sub 9-pin female
●Baud Rate: 9.6k/19.2k/45.45k/93.75k/187.5k/500k/1.5M/3M/6M/12Mbps
●Address Setting: 0~126 (set by DIP switch or EEPROM)
Ethernet specs:
●10/100Base-TX (Auto-negotiating, Auto_MDIX, LED indicator)
Power requirement:
●Unregulated +10 ~ +30 VDC
●Power reverse protection, Over-Voltage brown-out protection
●Power consumption 2.5W
Module specs:
●Dimensions:
GW-7553-B : 119mm X 72mm X 33 mm
GW-7553-M :118mm X 102mm X 27 mm
●Operating temperature: -25 ~ 75 ºC
●Storage temperature: -30 ~ 85 ºC
●Humidity：5 ~ 95% RH, non-condensing
●LED Status Indicators(Table 2)
Table 2 LED status indicator
PWR LED
Show the power state
Show data state
ERR LED
Show error state
RUN LED
Show communication state of PROFIBUS

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2. Hardware
2.1 Block Diagram of GW-7553-B / GW-7553-M
Figure 2 Block diagram of GW-7553-B / GW-7553-M
2.2 Pin Assignment

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Figure 3 Pin assignment of GW-7553-B / GW-7553-M
Table 3 9-pin screw terminal block
Pin
Name
Description
1
CTS
Clear to Send of RS-232
2
RTS
Request to Send of RS-232
3
RX
Receive Data of RS-232
4
TX
Transmit Data of RS-232
5
GND
GND of RS-232
6
-
N/A
7
-
N/A
8
+VS
V+ of Power Supply(+10 ~ +30 VDC)
9
GND
GND of Power Supply
Table 4 RJ-45 socket

GW-7553-B / GW-7553-M PROFIBUS/Modbus TCP Gateway User Manual (Version 1.35, May/2017)
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Table 5 PROFIBUS DB9 Female Connector
Pin
Name
Description
1
-
N/A
2
-
N/A
3
B
Non-inverting Bus Line
4
ISODE
Isolated DE output for use in PROFIBUS
applications where the state of the isolated drive
enable node needs to be monitored.
5
GND
Power supply ground for the first node and the last
node
6
VP
+5V Power Supply for the first node and the last
node
7
-
N/A
8
A
Inverting Bus Line
9
-
N/A
2.3 Wiring
GW-7553-B / GW-7553-M supports PROFIBUS to Serial or Ethernet
communication. It is recommended to use only one communication interface (RS-
232 or Ethernet) of the Gateway at the same time. The following section describes
the connection interface of GW-7553-B / GW-7553-M.
2.3.1 RS-232 connection
Pin
Name
Description
1
TX+
TX+ output
2
TX-
TX- output
3
RX+
RX+ input
4
-
N/A
5
-
N/A
6
RX-
RX- input
7
-
N/A
8
-
N/A

GW-7553-B / GW-7553-M PROFIBUS/Modbus TCP Gateway User Manual (Version 1.35, May/2017)
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The RS-232 port of the GW-7553-B / GW-7553-M has got three pins. The
wiring of the RS-232 device with the RS-232 port of the GW-7553-B / GW-
7553-M is shown in Figure 4.
Figure 4 RS-232 wiring diagram
2.3.2 Ethernet connection
The user can connect GW-7553-B / GW-7553-M with the other device to the
same sub network or same Ethernet Switch, as shown in Figure 5.
Figure 5 Ethernet connection