SST Automation GT200-DP-RS User manual

Universal Serial / PROFIBUS DP Gateway
GT200-DP-RS
User Manual
V6.1
Rev A
SST Automation
E-mail: [e-mail]
WWW.SSTCOMM.COM

User Manual
Universal Serial/PROFIBUS DP Gateway
GT 200-DP-RS
WWW.SSTCOMM.COM
Important Information
Warning
The data and examples in this manual cannot be copied without authorization. SSTCOMM reserves the right to
upgrade the product without notifying users.
The product has many applications. The users must make sure that all operations and results are in accordance
with the safety of relevant fields, and the safety includes laws, rules, codes and standards.
Copyright
Copyright © 2021 by SST Automation. All rights reserved.
Trademark
is the registered trade mark of SST Automation.
Technical Support Contact Information
www.sstcomm.com
E-mail: sup[email protected]m

User Manual
Universal Serial/PROFIBUS DP Gateway
GT 200-DP-RS
WWW.SSTCOMM.COM
Catalog
1 Product Overview...................................................................................................................................................... 1
1.1 Product Function.............................................................................................................................................1
1.2 Product Features............................................................................................................................................. 1
1.3 Technical Specifications................................................................................................................................. 1
1.4 Revision History............................................................................................................................................. 3
2 Hardware Descriptions.............................................................................................................................................. 4
2.1 Product Appearance........................................................................................................................................ 4
2.2 Indicators.........................................................................................................................................................4
2.3 LED Display................................................................................................................................................... 5
2.4 DP Address and Mode Setting Button............................................................................................................5
2.5 Interface.......................................................................................................................................................... 6
2.5.1 Power Interface....................................................................................................................................6
2.5.2 PROFIBUS DP Interface.....................................................................................................................6
2.5.3 RS-485/RS-422 Interface.................................................................................................................... 7
2.5.4 RS-232 Interface..................................................................................................................................7
3 Hardware Installation.................................................................................................................................................8
3.1 Machine Dimension........................................................................................................................................8
3.2 Installation Method......................................................................................................................................... 8
4 Quick Start Guide...................................................................................................................................................... 9
4.1 Connection...................................................................................................................................................... 9
4.2 Configuration................................................................................................................................................ 11
4.2.1 Configure by SST-MPG-CFG Software............................................................................................11
4.2.2 Configure by STEP7 (PROFIBUS Integrated Configuration Software).......................................... 14
4.3 Debug............................................................................................................................................................19
5 Working Principle.................................................................................................................................................... 20
5.1 As Modbus Master........................................................................................................................................20
5.2 As Modbus Slave.......................................................................................................................................... 20
5.3 Universal Mode.............................................................................................................................................22
5.3.1 Data Exchange................................................................................................................................... 22
5.3.2 Data Frame Format............................................................................................................................22
5.4 Data Mapping in Software Configuration Mode..........................................................................................24
6 SST-MPG-CFG Software Instructions.................................................................................................................... 25
6.1 Notes before Configuring............................................................................................................................. 25
6.2 User Interface................................................................................................................................................25
6.3 The Operation of Equipment View...............................................................................................................28
6.3.1 Equipment View Interface................................................................................................................. 28
6.3.2 Operation Mode of Equipment View................................................................................................ 28
6.3.3 Operation Types of Equipment View................................................................................................ 28
6.4 The Operation of Configuration View..........................................................................................................29

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6.4.1 Interface of Fieldbus Configuration View.........................................................................................29
6.4.2 Interface of Subnet Configuration View............................................................................................30
6.4.3 Interface of Node Configuration View.............................................................................................. 35
6.4.4 Interface of Command Configuration View......................................................................................35
6.5 Conflict Detection.........................................................................................................................................37
6.5.1 Operation of Command List..............................................................................................................37
6.5.2 Operation of Memory Mapping Area................................................................................................37
6.6 Hardware Communication............................................................................................................................38
6.6.1 Serial Configuration.......................................................................................................................... 39
6.6.2 Upload Configuration........................................................................................................................ 39
6.6.3 Download Configuration................................................................................................................... 40
6.7 Load and Save Configuration....................................................................................................................... 40
6.7.1 Load Configuration Project............................................................................................................... 40
6.7.2 Save Configuration Project................................................................................................................41
6.8 Export EXCEL..............................................................................................................................................41
6.9 Debug............................................................................................................................................................41
6.9.1 Debug Interface of 4.X or 3.X...........................................................................................................42
6.9.2 Debug Interface of 5.x and above......................................................................................................43
7 GSD File Instructions.............................................................................................................................................. 45
7.1 DPRS2A.GSD...............................................................................................................................................45
7.2 DPRS2M.GSD..............................................................................................................................................47
7.2.1 Basic Modules................................................................................................................................... 47
7.2.2 Functional Modules........................................................................................................................... 49
7.3 DPRS2S.GSD............................................................................................................................................... 53
7.3.1 Basic Modules................................................................................................................................... 54
7.3.2 Functional Modules........................................................................................................................... 55
7.4 DPRS2T.GSD............................................................................................................................................... 56
Appendix: PROFIBUS DP Modules.......................................................................................................................... 58

User Manual
Universal Serial/PROFIBUS DP Gateway
GT 200-DP-RS
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1
1 Product Overview
1.1 Product Function
The GT200-DP-RS gateway enables data to establish communication between the Modbus or universal serial
devices with RS-485/RS-232/RS-422 interface and PROFIBUS DP master such as Siemens PLC. It also supports
data/status monitoring and debugging.
1.2 Product Features
Wide Applications: Any devices with RS-485/RS-232/RS-422 interface can be connected to PROFIBUS DP
network through the GT200-DP-RS. For example, Variable-frequency Drive with Modbus interface, Motor
starting protector, and transmitters.
Easy to use: Users don’t need to know details of PROFIBUS or Modbus protocol, just configure the gateway
according to the user manual then establish the communication.
Transparent communication: Users can refer to the mapping relations between PROFIBUS DP data area and
Modbus/serial data area to realize the transparent data communication.
1.3 Technical Specifications
[1] Acts as a PROFIBUS DP slave.
Supports PROFIBUS DPV0.
As a PROFIBUS DP slave, baud rate is self-adaptive. Maximum baud rate is 12Mbps.
Maximum Input data: 244 Bytes
Maximum Output data: 244 Bytes
[2] Supports Modbus master, Modbus slave or Universal modes in serial interface. Supports transparent data
communication between PROFIBUS DP PLC and serial devices.
[3] Serial interface: one RS-485/422 and one RS-232, half-duplex. Supported baud rate: 300, 600, 1200, 2400,

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4800, 9600, 19.2 K, 38.4K, 57.6K and 115.2K bps. Parity: None, Odd, Even, Mark and Space.
[4] As a Modbus master, supports 01, 02, 03, 04, 05, 06, 15 and 16 function codes.
Supports monitoring status of Modbus slave(s).
Supports clearing data or keeping the data when the input data is abnormal.
Supports command retries when response timeout.
[5] As a Modbus slave, supports 01, 02, 03, 04, 05, 06, 15 and 16 function codes. .
[6] Supports two configuration modes:
Uses SST-MPG-CFG software to configure the GT200-DP-RS (Software Configuration mode):
Supports up to 100 Modbus commands. Function code 03 and 04 support “Word / Byte mapping”. The
high-byte or low-byte mapping of the registers provides effective utilization of the PROFIBUS DP
input-byte.
Use DP Integrated software to configure the GT200-DP-RS (DP Integrated Configuration mode):
Supports up to 48 Modbus commands.
Supports command sending control and capturing exception codes.
[7] In universal mode, supports the control mode of character timeout and frame length (number of character).
Supports periodically sending.
[8] Power: 24VDC (11V~30V), 80mA.
[9] Operating temperature: -4°F~140°F (-20°C~60°C). Humidity: 5%~ 95% (non-condensing).
[10] Dimensions (W*H*D): 1.0 in * 4.0 in *3.6 in (25 mm * 100 mm * 90 mm).
[11] Installation: 35mm DIN RAIL.
[12] Protection Level: IP20.
[13] In accordance with EMC test standard.

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1.4 Revision History
Revision
Date
Chapter
Description
V6.1
08/11/2020
ALL
New Release
V6.1, Rev A
08/20/2021
ALL
Revised technical details. New quick start
guide and chapters. revised.

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2 Hardware Descriptions
2.1 Product Appearance
Note: This picture is for reference only. The product appearance is subject to the actual product.
2.2 Indicators
Indicators
State
Description
PBF
Red On
PROFIBUS DP communication failed.
OFF
Communication is normal.
STA
Green Flashing
Transferring data in PROFIBUS DP network.
OFF
No data is transferred in PROFIBUS DP network.
TX
Green Flashing
Sending data from RS-485/422/232 interface.
OFF
No data is sent from RS-485/422/232 interface.
RX
Green Flashing
Receiving data in RS-485/422/232 interface.
OFF
No data is received in RS-485/422/232 interface.
Power Interface
PROFIBUS DP Address
Setting Button
Indicators
USB Interface
LED Display
PRODIBUS DP
Interface
RS-232 Interface
RS-485/422 Interface

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2.3 LED Display
The LED display is located in the front of the product. Please refer to chapter 2.4 to change DP address and
operating mode.
LED Display
Description
CF
Configuration mode.
db
Debug mode.
Jumps between a
number and “-P”
Run mode. The number is the GT200-DP-RS’s PROFIBUS DP address. “-P”
indicates that the GT200-DP-RS is in the “DP Integrated Configuration” mode
allowing all the parameters in the PROFIBUS DP integrated configuration
software, such as the STEP7 (chapter 4.2.2) and TIA Portal to be configured.
Jumps between a
number and “-U”
Run mode. The number is the GT200-DP-RS’s PROFIBUS DP address. “-U”
indicates that the GT200-DP-RS is in the “Software Configuration” mode and is
configured through the SST-MPG-CFG software (chapter 4.2.1).
Note:
In Software Configuration mode (LED displays “-U”):
1. If the GT200-DP-RS is configured via USB cable, it will automatically switch to configuration mode.
2. If it’s configured via RS-232 interface, the GT200-DP-RS should switch to configuration mode manually. See
chapter 2.4 for how to switch mode.
2.4 DP Address and Mode Setting Button
The DP address and mode setting button is located on the front panel of the GT200-DP-RS. It’s used to set the
PROFIBUS DP address and operating mode.

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2.5 Interface
2.5.1 Power Interface
GND
NC
24V+
1
2
3
2.5.2 PROFIBUS DP Interface
5
1
PROFI_A (Pin 8)
GND (Pin 5)
PROFI_B (Pin 3)
PROFIBUS DP interface uses DB9 male-connector, and the pins are defined as follow:
Pin
Description
3
PROFI_B, Data+
4
RTS (Request to send)
5
GND
6
+5 V for terminating resistors
8
PROFI_A, Data-
Others
Not connected
Note:
It’s recommended to use the standard PROFIBUS DP connector. The PROFI_B (Pin 3), PROFI_A (Pin 8) and the
shield GND (Bolt) must be connected.
The RTS (Pin 4) is used to determine the transmission direction. The +5 V (Pin 6) and GND (Pin 5) are used for
terminating resistors, and can also be used supply to fiber optic transceivers. The maximum output current of pin 5
and pin6 is 80mA.
Pin
Description
1
GND
2
Not connected
3
24V DC +

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2.5.3 RS-485/RS-422 Interface
GND
D-
D+
1
2
3
4
5
R-
R+
Pin
Description
1
R-, RS-422 Receive-
2
R+, RS-422 Receive+
3
GND
4
D-, RS-485/RS-422 Transmit-
5
D+, RS-485/RS-422Transmit+
2.5.4 RS-232 Interface
1
2
3
TX
RX
GND
Pin
Description
1
TX, connected to user’s device RS-232 RX
2
RX, connected to user’s device RS-232 TX
3
GND, connected to user’s device RS-232 GND

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3 Hardware Installation
3.1 Machine Dimension
Size: 1.6 in * 5.0 in * 4.4 in / (40mm * 125mm * 110mm)
3.2 Installation Method
Using 1.38 in (35mm) DIN RAIL.

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4 Quick Start Guide
4.1 Connection
1. Connect to the power supply.
GND
NC
24V+
1
2
3
GND
24V+
DC power: +24V
Power interface of gateway
2. Connect to the computer. You can use USB or RS-232 interface to configure the GT200-DP-RS. If you use
the RS-232 interface, the connections is shown below:
RS-232 Interface of GT200-DP-RS
RS-232 Interface of Computer
TX
RX
GND
1
5
GND
RX
TX
3. Connect to the serial devices. You can also connect the serial devices after you finish the configuration.
The GT200-DP-RS is able to connect with RS-485 devices. When using multi-point connection, to prevent
the reflection and obstruction of signal, it’s suggested to connect the terminal resistor (120Ohm, 1/2W)
parallel with the 2 data wires at both end of the network.

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GND
D-
D+
R-
R+
RS-485 Device 2
485+
485-
RS-485 Device 1
RS-485 Device N
485+
485-
485+
485-
...
RS-485 Interface of GT200-DP-RS
The GT200-DP-RS supports RS-422 interface as well.
GN
D
D-
D+
R-
R+
RS-422 Interface of GT200-DP-RS
RS-422 Device 1
RS-422 R-
RS-422 R+
RS-422 D+
RS-422 D+
RS-422 Device 2
RS-422 D+
RS-422 D+
RS-422 D+
RS-422 D+
...
4. Connect to PROFIBUS DP PLC or control system. It’s suggested to use the standard PROFIBUS DP
connector, referring to chapter 2.5.2.

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4.2 Configuration
GT200-DP-RS V6.1 and higher versions support two configuration modes: DP Integrated Configuration mode and
Software Configuration mode.
The Software Configuration mode allows user to configure the GT200-DP-RS in SST-MPG-CFG software.
The DP Integrated Configuration mode allows user to configure all parameters of the GT200-DP-RS in
PROFIBUS integrated configuration software, such as STEP7 or TIA Portal.
Before starting the configuration, please check the configuration mode of the GT200-DP-RS.
4.2.1 Configure by SST-MPG-CFG Software
Reference the image below the step. In this example, the SST-MPG-CFG is of V1.3.3.
1. Download, install, and run the configuration software, SST-MPG-CFG, which can be found on the
GT200-DP-RS product page at sstcomm.com.
2. Click the upload button on the tool bar. The Upload Configuration will pop up, in this window select the
GT200-DP-RS gateway you wish to configure and click “Upload”.
Note: This will upload the default configuration in the software, this is also how you can edit your
configuration after downloading your configuration to the gateway. If you cannot find the gateway, check
your connections.
3. Click “Field Bus” located in the Equipment Section. Configure the parameters to meet the needs of your
project. Ensure that the PROFIBUS address matches your device’s address.
Note: If you select “Address setting using hardware” for PROFIBUS address, the PRIFBUS address is set by
Setting Button on the GT200-DP-RS (chapter 2.4). For more details of the PRODIBUS address, please see
chapter 6.4.1.

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4. Click “Subnet” located in the Equipment Section. Configure the parameters located in the Configuration
Section to meet the needs of your project.
Note: These parameters must match project device settings to ensure communication through our gateway.
5. Right Click “Subnet” and Select “Add Node”. Click the newly created node and configure the Slave Address
parameter.
6. Right click a node and select “Add Command”. In the Select Command window, double click the command
you wish to add.

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7. Click the Command you wish to configure and configure the parameters in the Configuration Section to meet
the needs of your project.
8. Once the “Fieldbus”, “Subnet”, Node(s), and Command(s) are configured, click “AutoMap” icon on the
toolbar to map the Modbus data to the PROFIBUS DP network. Then check the mapping address in Conflict
Detection window.
9. Click “Download” to download your configurations into the GT200-DP-RS.

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Note: The GT200-DP-RS will apply the new configuration after entering Run mode. After downloading, the
software will ask to switch mode. You can also switch mode manually by setting button, referring to chapter 2.4.
4.2.2 Configure by STEP7 (PROFIBUS Integrated Configuration
Software)
The DP Integrated Configuration mode allows users to configure the GT200-DP-RS in PROFIBUS integrated
configuration software, such as STEP7 or TIA Portal.
To apply this mode, please change the configuration mode of the GT200-DP-RS in SST-MPG-CFG software to
“via PROFIBUS DP Integrated Configuration Software” and download the configuration. The LED should
display “-P” that indicates the GT200-DP-RS is in DP Integrated Configuration mode.
The following steps give an example of the STEP7 configuration process.
1. Double click on the “Hardware” to open the hardware configuration window of your project.
2. Register the GSD file. On the top menu bar, select “Options” >> “Install DSG File...” and install the GSD
files of GT200-DP-RS. For detailed description of the GSD files, please see chapter 7.

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The installed GSD files are in the corresponding folder.
3. Add the GT200-DP-RS to the PROFIBUS DP bus. Drag the device and modules in the catalog to the DP bus,
as shown below.
Note:
In the “DP Integrated Configuration” mode, you should use “GT200-DP-RS Modbus Master/Modbus
Slave/Serial Vx.x” device. The “GT200-DP-RS Vx.x”device is used for “Software Configuration” mode
(chapter 4.2.1).

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4. The following steps introduce how to configure the GT200-DP-RS as a Modbus Master. The device is
“GT200-DP-RS Modbus Master V6.0”.
(1) Double click on a GT200-DP-RS device to open its properties window. In “General” window, Set the DP
parameters.
In “Parameter Assignment” window, set the Modbus parameters. The communication interface will use these
parameters to establish communication with Modbus serial devices.