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GT200-MT-RS
User Manual
35 pgs1.47 Mb0

SST Automation GT200-MT-2RS, GT200-MT-RS User Manual

Industrial Ethernet Serial Gateway
（Modbus RTU/ASCII / Modbus TCP）
Modbus Serial/TCP Series
User Manual
REV 1.4
SST Automation
E-mail: support@sstcomm.com
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Catalog
1 Product Overview...................................................................................................................................................... 4
1.1 Product Function.............................................................................................................................................4
1.2 Product Features............................................................................................................................................. 4
1.3 Technical specifications..................................................................................................................................5
2 Hardware Description................................................................................................................................................ 6
2.1 Appearance......................................................................................................................................................6
2.2 Indicators.........................................................................................................................................................7
2.3 DIP switch.......................................................................................................................................................7
2.4 Interface.......................................................................................................................................................... 8
2.4.1 Power interface.................................................................................................................................... 8
2.4.2 Ethernet interface.................................................................................................................................9
2.4.3 Serial interface...................................................................................................................................10
3 Instructions of Configuration Software...................................................................................................................12
3.1 Notes before configuration........................................................................................................................... 12
3.2 Search equipment..........................................................................................................................................13
3.2.1 Search all equipment in Ethernet.......................................................................................................13
3.2.2 IP search.............................................................................................................................................14
3.3 Configuration................................................................................................................................................ 16
3.3.1 Mode selection...................................................................................................................................17
3.3.2 Ethernet parameters........................................................................................................................... 18
3.3.3 Serial parameters............................................................................................................................... 18
3.3.4 ID mapping (Advanced parameters)................................................................................................. 20
3.3.5 Modbus parameters (Advanced parameters).....................................................................................21
3.3.6 Priority control (Advanced parameters)............................................................................................22
3.3.7 Advanced (Advanced parameters).....................................................................................................23
3.3.8 OK, Cancel and Help.........................................................................................................................24
3.4 Locate............................................................................................................................................................25
3.5 Remote reset................................................................................................................................................. 26
3.6 New (offline configuration)..........................................................................................................................26
3.7 Open..............................................................................................................................................................27
3.8 Save...............................................................................................................................................................28
3.9 Communication test......................................................................................................................................30
4 Typical Application..................................................................................................................................................31
4.1 Multiple Ethernet master connect with multiple serial slave.......................................................................31
4.2 Multiport serial master connect with multiple Ethernet slave..................................................................... 32
4.3 Serial master connect with serial slave via Ethernet.................................................................................... 33
5 Installation................................................................................................................................................................34
5.1 Machine Dimension......................................................................................................................................34
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5.2 Installation Method.......................................................................................................................................34
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1 Product Overview
Product Type
Ethernet end protocol
Serial protocol
Serial number
GT200-MT-RS
Modbus TCP
Modbus RTU/ASCII
Single serial port
GT200-MT-2RS
Modbus TCP
Modbus RTU/ASCII
Dual serial port
Operating mode:
Dual Ethernet interface , built-in switch, support cascade , can be used in a ring network ,save field
GT200-MT-RS: One RS485 interface or RS232 interface, 1KV electromagnetic isolation;
Ethernet 10/100M self-adaptive;
Slave ID mapping function;
1.1 Product Function
Modbus Serial/TCP series gateway can achieve the interconnection between Ethernet (Modbus TCP protocol)
devices and serial (Modbus RTU/ASCII) devices. The Modbus Serial/TCP series gateway supports dual Ethernet
ports, built-in switch; the serial side supports single/dual/four serial port. Each port supports both RS485 and
RS232, but the same product can only achieve one type of port, users can specify the port according to actual
needs when ordering.
Modbus Serial/TCP series gateway products type list:
1.2 Product Features
Modbus RTU/ASCII slave mode: Modbus TCP masters communicate with Modbus RTU/ASCII slaves
through the gateway;
Modbus RTU/ASCII master mode: Modbus RTU/ASCII masters communicate with Modbus TCP salves
through the gateway.
connection cables and switches;
GT200-MT-2RS: Two RS485 interfaces or RS232 interfaces, 1KV electromagnetic isolation;
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Packet request is automatically routed to the serial port;
Network security settings;
Limit the IP address range of clients’ communication machine;
Debugging function;
Provide easy-to-use configuration software SST-MT-CFG.
Login password can be set;
1.3 Technical specifications
[1] Slave mode: Support 4 Modbus TCP master communication simultaneously, and can support 32
command request simultaneously;
[2] Master mode: Support visiting 4 different IPs or Modbus TCP slaves of different ports;
[3] Every serial interface is all RS485 or RS232, half-duplex, and baud rate support: 1200, 2400, 4800, 9600,
19200, 38400, 57600, 115200 and 230400bps optional; parity: none, odd and even optional; 1 or 2 stop bits;
[4] Power supply: 24VDC (11V ~ 30V), 130mA (24VDC);
[5] Working temperature: -4℉~140℉(-20℃~60℃), relative humidity: 5% ~ 95% (non-condensing);
[6] External Dimensions (W*H*D): 1.57 in*4.92 in*4.33 in (40mm*125mm*110mm);
[7] Installation: 35mm rail;
[8] Protection class: IP20;
[9] Test standard: EMC test standards.
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2 Hardware Description
1. The picture above shows the appearance of GT200-MT-2RS;
2. GT200-MT-2RS , two serial ports : serial I and serial II;
3. GT200-MT-RS, one serial port: serial I.
Dual Ethernet interface
Serial interfaceⅠ
Serial interface Ⅱ
Configuration switch
Power interface
Indicators
2.1 Appearance
Notes:
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2.2 Indicators
product
model
Indicators
Status
Descriptions
GT200-MT-
RS
RX
Blinking(Green)
Serial port is receiving data
TX
Blinking (Green)
Serial port is transmitting data
GT200-MT-
2RS
Ⅰ
RX blinking(Green)
Serial portⅠis receiving data
TX blinking (Green)
Serial portⅠis transmitting data
Ⅱ
RX blinking (Green)
Serial portⅡis receiving data
TX Blinking(Green)
Serial portⅡis transmitting data
Modbus
Serial/TCP
series
ENS
Green on
Slave mode: At least one Modbus TCP
connection has been established;
Master mode: Modbus TCP connection has
been established
Blinking(Green)
Slave mode: Modbus TCP no connection;
Master mode: Modbus TCP connection has
not been established
Blinking(Red)
Modbus TCP connection is disconnected and
no longer exists; Obtain IP config via DHCP
Blinking(Red)
（lasts 3 seconds）
Modbus TCP connection is disconnected
SNS
Green on
Serial port ready to transmit and receive data
Blinking(Red)
Automatic routing conflict
Red on
Equipment failure or firmware update failed
ENS (Orange) and
SNS (Orange)
（Orange: Red and
green light on at the
same time）
Simultaneously on
Start status
Blink alternately
Configuration Mode
Blink alternately
(lasts 3 seconds）
Using locate function
ENS on, SNS off
Firmware update mode
2.3 DIP switch
The DIP switch is located at the bottom of the gateway, bit 1 is mode bit and bit 2 is function bit.
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Off
On 1 2
Mode (bit 1)
Function (bit 2)
Description
Off
Off
Run mode, allowing reading and writing of configuration
data
Off
On
Configuration mode, IP address is 192.168.0.10 (fixed),
this mode can read and write configuration data but cannot
finish communication between Modbus TCP and Modbus
RTU devices
On
Off
Run mode, forbidding reading and writing of configuration
data (configuration data protection switch )
On
On
Firmware update mode, IP address is 192.168.0.10, this
mode can only update firmware
Notes:
GND
NC
24V+
1
2
3
Pin
Function
1
GND
2
NC, not connected
3
24V+ , DC 24V
Restart Modbus Serial/TCP series gateway (power off and power on) after resetting the configuration
to make the configuration take effect!
2.4 Interface
2.4.1 Power interface
Modbus Serial/TCP series gateway uses a 24V DC power supply. The power interface uses a 3-pin 7.62mm both
ends of the closed-end terminals, defined as follows:
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Power supply wiring is shown as below:
GND
NC
24V+
1
2
3
GND
24V+
DC power: +24V
Power interface
Pin
Signal Description
S1
TXD+, Tranceive Data+, Output
S2
TXD-, Tranceive Data-, Output
S3
RXD+, Receive Data+, Input
S4
Bi-directional Data+
S5
Bi-directional Data-
S6
RXD-, Receive Data-, Input
S7
Bi-directional Data+
S8
Bi-directional Data-
2.4.2 Ethernet interface
Ethernet interface uses RJ-45 connector; its pin (standard Ethernet signal) is defined as below:
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2.4.3 Serial interface
TXRXGND
1
2
3
Pin
Signal Description
1
TX, connect with RX of user device
2
RX, connect with TX of user device
3
GND
D+D-GND
1
2
3
Pin
Signal Description
1
D+, RS485
2
D-, RS485
3
GND
Modbus Serial/TCP series gateway uses a 3-pin 5.08mm closed terminal of two ends. Ports support RS485 or
RS232.
Pin of RS232 interface is defined as below:
Pin of RS485 interface is defined as below:
The RS485 interface of the Modbus Serial/TCP series gateway is a standard one, and the RS485
characteristics of the product are shown as follows:
1. The basic characteristics of RS485 transmission technology
① Network topology: Linear bus, there are active bus terminal resistors at both sides.
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② Transmission rate: 1200 bps~115.2Kbps.
D+D-GND
1
2
3
485+
485-
RS485 device
RS485 interface
RS485 device
RS485 device
485+
485-
485+
485-
…
③ Media: Shielded twisted-pair cable and also can cancel the shielding, depending on environmental
conditions (EMC).
④Site numbers: 32 stations per subsection (without repeater), and can up to 127 stations (with RS485
repeater).
⑤Plug connection: 3-pin pluggable terminal.
2. The main points on RS485 transmission equipment installation
①All the equipment are connected with RS485 bus;
②Subsection can be connected up to 32 sites;
③The farthest end of each bus has a termination resistor—120Ω 1/2W to ensure reliable operation of the
network.
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