Related Manuals for SST Automation GT200-HT-RS
Summary of Contents for SST Automation GT200-HT-RS
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Page 1: User Manual
HART/ Modbus Serial Gateway GT200-HT-RS User Manual V 2.3 REV B SST Automation E-mail: SUPPORT@SSTCOMM.COM WWW.SSTCOMM.COM... -
Page 2: Table Of Contents
3.4.2 RS-485/RS-422 Interface........................14 3.4.3 RS-232 Interface..........................15 3.4.4 HART Interface..........................16 3.4.5 Mini B Type USB..........................16 3.5 Topology of GT200-HT-RS and Fieldbus Devices..................17 4 Software Instructions............................... 19 4.1 Software Interface Description........................19 4.2 Software Functional Specifications......................21 4.2.1 Connect with the Hardware....................... 21 4.2.2 Upload configuration.........................22... - Page 3 4.2.10 Serial Debug............................ 38 4.2.11 Switching Tools..........................39 4.2.12 Use USB Port...........................40 5 Working Principle..............................45 5.1 Flowchart of Executing One HART Command................... 48 5.2 Universal Send and Receive Data........................ 48 5.3 Trigger Command............................49 5.4 Data Exchange with Modbus........................50 6 Installation................................51 6.1 Machine Dimension............................51 6.2 Installation Method............................51...
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Page 4: Product Overview
1.1 Product Function GT200-HT-RS is a gateway that can provide a seamless connection between HART and Modbus. At HART side it can be configured as a primary master or the secondary master, and acts as slave at the Modbus side. -
Page 5: Safety And Explosion-Proof Features
[16] Installation: 1.38 in (35mm) DIN RAIL; [17] Protection Level: IP20; 1.4 Safety and Explosion-Proof Features GT200-HT-RS is not the product with the features of safety and explosion-proof, please put it in the control room when using. 1.5 Related Products The related products include: GT200-HT-DP, GT200-DP-RS etc. -
Page 6: Quick Start Guide
2 Quick Start Guide The following example introduces the use method of the Gateway. 2.1 Configuration of Gateway Parameters 2.1.1 Pre-configured Settings Turn gateway’s configuration bit of DIP switch(refer to chapter 3.3.1) to “ON”; Connect the Gateway’s RS-232/USB interface and the serial port of the computer with a serial cable, wiring methods see chapter 3.4.3 of this manual;... - Page 7 Click “HartChannel0” in the tree view on the left, the configuration table is shown on the right as below: Note: HART protocol specifies that the slave device which address is 0 must work in single-point mode. In single-point mode the digital communication and analog communication is allowed to exist at the same time. The Slave with address 1~15 works in multi-point mode.
- Page 8 6． Click the “Command ID1”, the configuration table on the right is configured as below: 7．Click the tool , in the pop-up dialog box, select the serial port that gateway is connected to the computer, click OK and then click Download data: WWW.SSTCOMM.COM...
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Page 9: Function Demo
2.2 Function Demo HART interface of the gateway connects with a 2-wire pressure transmitter with slave address 0, RS-485 interface is connected to the computer through RS-485/RS-232 converter, and computer with configured Modbus POLL software can simulate to work as a Modbus master, then in data exchange window you can see the main variable value of the pressure transmitter: WWW.SSTCOMM.COM... - Page 10 WWW.SSTCOMM.COM...
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Page 11: Hardware Descriptions
3 Hardware Descriptions 3.1 Product Appearance Power Interface Modbus Address Setting Button DIP Switch Serial State Indicator HART State Indicator Mini USB LED Display Internal/External Sampling Resistor Switch HART Interface RS-232 Interface RS-485/RS-422 Note: This picture is for reference only. Product appearance should refer to the real object. WWW.SSTCOMM.COM... -
Page 12: Indicators
Debug Mode Configuration Mode Note: ①After re-configuring the switch, you have to restart the GT200-HT-RS to make the settings take effect! (Power off then Power On) ②Set to the debug mode, it will be compulsory to appoint RS-485 interface as communication interface, RS-232/USB interface as debugging interface. -
Page 13: Modbus Address Setting Button
Modbus address. At last, long-press the button again for 3 seconds, the address flashing three times shows that the address is set successfully. If no button action within ten seconds, GT200-HT-RS exits the status of setting address and continue to display the original address. The configurable range of Modbus address is 0 to 99 (Decimal). -
Page 14: Interface
NC(Not Connected) 24V+, DC Positive 24V 3.4.2 RS-485/RS-422 Interface The RS-485 interface of GT200-HT-RS is a standard one, and the RS-485 characteristics of the product are shown as follows: 1. The basic characteristics of RS-485 transmission technology ① Network topology: Linear bus, there are active bus terminal resistors at both sides. -
Page 15: Rs-232 Interface
②Each subsection can be connected up to 32 sites; ③The farthest two end of the bus has a terminal resistor—120Ω 1/2W to ensure reliable operation of the network. Serial interface uses 5-pin pluggable open terminal and user can wire it according to the wiring instructions on the panel. -
Page 16: Hart Interface
Function RX, Connect RS-232's RX of user device TX, Connect RS-232's TX of user device GND, Connect RS-232's GND of user device 3.4.4 HART Interface Function Connect HART signal positive Connect HART signal negative 3.4.5 Mini B Type USB Mini B type USB interface is defined as below: Name Function VBUS... -
Page 17: Topology Of Gt200-Ht-Rs And Fieldbus Devices
3.5 Topology of GT200-HT-RS and Fieldbus Devices WWW.SSTCOMM.COM... - Page 18 Note: 1. Some HART slave instrument need to perform self-test and other internal work when power is on, they may not start HART communication, then gateway cannot receive the response data of the instrument right now. It is recommended the HART slave instrument and gateway uses separate power supply so that the gateway can immediately establish communication with instrument.
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Page 19: Software Instructions
SST-HT-CFG is configuring software based on Windows platform, and used to configure HART series products. The following describes how to use the software SST-HT-CFG to configure the product GT200-HT-RS. You may also check the software user manual to get detailed usage. - Page 20 The function from left to right is: New, Save, Open, AddNode, DelNode, AddCmd, DelCmd, Upload, Download, AutoMap, Conflict, Export, Memory, Diagnose and Debug. New: Create a new configuration file Save: Save the configuration file Open: Open the configuration file AddNode: Add a HART slave node DelNode: Delete a HART slave node AddCmd: Add a HART command DelCmd: Delete a HART command...
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Page 21: Software Functional Specifications
AutoMap: Used to automatically calculate the mapped memory address without confliction by each command Conflict: To check whether there are some conflicts with configured commands in the gateway memory data buffer Export: Output current configuration to the local hard disk and saved as Excel spreadsheet form Memory: Show the data exchange inside of the gateway Diagnose: through this function could analyze operating condition of fieldbus device;... -
Page 22: Upload Configuration
4.2.2 Upload configuration Open the software “SST-HT-CFG”, Click on the icon , Select the computer port connected to the gateway and then click “upload data”, If it shows “upload successfully”, which indicates that configuration file had been uploaded to the SST-HT-CFG. 4.2.3 Configure the Fieldbus 4.2.3.1 Configure the fieldbus as Modbus slave If you want to use the functionality of Modbus slave, click the “Fieldbus”... - Page 23 In this interface you can set the parameters as shown: Baud rate: 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200bps Data bits: 8 Parity: None, Odd, Even, Mark, Space optional Stop bits: 1, 2 Communication mode: RTU, ASCII Slave address: 0~247 Communication interface: RS-485, RS-232 optional.
- Page 24 Timeout number: set the timeout/clear times 4.2.3.2 Configure the fieldbus as universal mode The universal mode (transparent transmission mode) means that we can send HART frame directly through serial port (RS-232/RS-485/RS-422), meantime gateway also will send out the data received from HART bus through serial port.
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Page 25: Configure The Hart Fieldbus
4.2.4 Configure the HART Fieldbus 4.2.4.1 Set the Parameters of HART Channel Click the HartChannel0 in the tree view, in the right place will show the configuration plate: Master type: Primary master, Secondary master Network mode: Select the networks link as single or multiple points, in the single point the gateway can only communicate with the slave device whose address is 0;... - Page 26 4.2.4.2 Add Slave Nodes Select the”HartChannel0”, Right click the mouse and click “Add Node”. Click the added node, set slave address in the right configuration plate, and please notice that HART channel can only be equipped with one slave node when configured in the single point mode. Note: When configured node numbers are more than the actual connected devices, the redundant node will lead to the longer time of polling circle;...
- Page 27 Choose the command you want in the popup menu, and then click “OK” to exit: Note: the same command can only be configured once in one node. 4.2.4.4 Configure HART Commands Click the command number in the tree view; you will see the configuration plate in the right place: WWW.SSTCOMM.COM...
- Page 28 Configuration Mode: basic and advanced optional, “basic” is shown as above, “advanced” configuration can refer to chapter 4.2.4.7; Mode of outputting command: You can use the execution way of the command, change-of-state, polling output, Initialization output and disable output optional; Change-of-state output: Execute this command once s data buffer of HART changes ...
- Page 29 data only includes data area of HART frame; Modbus register starting address of receiving data: the property is automatically calculated by gateway, used for register addressing; Receiving data length (BYTE): set the length of input data by this command; Receiving data length (WORD): the property is automatically calculated by gateway, used for user checking output data length conveniently, 1 word=2 byte;...
- Page 30 This interface details is described in chapter 4.2.4.4, so here we don’t describe it. The below is the example of No.3 HART command, to show how to use “Segment Mapping” function, we can see one “configuration” button after the “receive data project configuration” option, click it: There are many parts in “Bytes”.
- Page 31 For example, the original data is 0x12345678, it will be 0x56781234 after using “register swap”. Choose “Byte0-3” and “Byte5-8”, click auto mapping, as shown below: Close the dialog box, download the configuration into GT200-HT-RS. Others are the same with “Basic Mode”. WWW.SSTCOMM.COM...
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Page 32: Conflict Detection
4.2.5 Conflict Detection Conflict detection is used to check the distribution condition of the input and output data of all commands stored in the memory. Click icon will show the conflict detection interface as follow: The left side is configuration commands, the right side is data memory address including receive data storage address and send data storage. -
Page 33: Automap
1. Set the DIP switch’s debug bit to ON state and the configuration bit to OFF state, restart the gateway. GT200-HT-RS is in the debug mode. 2. Use a serial port line to connect the GT200-HT-RS’s RS-232 port and computer RS-232 serial port or use USB way to connect it, open the software “SST-HT-CFG”, Click “Config—Serial Connection”, Select the correct serial port... -
Page 34: Diagnose
1. Set the DIP switch’s debug bit to ON state and the configuration bit to OFF state, back online. GT200-HT-RS is in the debug mode. 2. Use a serial port line to connect the GT200-HT-RS’s RS-232 port and computer RS-232 serial port or use USB way to connect it, open the software “SST-HT-CFG”, Click “Config—Serial Connection”, Select the correct serial port WWW.SSTCOMM.COM... - Page 35 3. Click “Tool—Diagnose” or click on the icon , Interface is as follows: 4. Click “Upload data” will see a picture as below: 5. Click “OK” button to get in the interface of diagnose: WWW.SSTCOMM.COM...
- Page 36 Click on “HartChannel0” in this interface, it will show the status of HART fieldbus part in the right place, press “Refresh” button will update the data once, click on “Periodically refresh”, the software will update the data every 500ms. 6. Click Node(x), it is shown as below: It shows the response status of configured commands.
- Page 37 Click the“Refresh” button will update the data, click the “Edit” button doesn’t work in the Read-only command. Double click “CMD19” will show the window as below: Click the value or attribute you want to change, like “Final Assembly Number”, change relevant values, and click “Modify”...
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Page 38: Serial Debug
1. Set the DIP switch’s debug bit to ON state and the configuration bit to OFF state, restart the gateway. Now GT200-HT-RS is in the debug mode. 2. Use a serial port line to connect the GT200-HT-RS’s RS-232 port and computer RS-232 serial port or use USB way to connect it, open the software “SST-HT-CFG”, Click “Config—Serial Connection”, Select the correct serial port 3. -
Page 39: Switching Tools
The “Checksum” button only checks part of the data. Here is an example. In this example, command ID0 is composed of data head, data and check code. It uses short address; when you click “Send”, you will get the response data. Note: Under this function, gateway will stop to execute the configured command;... -
Page 40: Use Usb Port
After installing USB driver, this USB driver will generate a virtual COM port on PC, GT200-HT-RS can communicate with PC through this virtual COM port. Please ensure that this USB driver is installed before using this function. - Page 41 Click “Finish”, to finish the installation of USB driver. How to find this virtual COM port? Use USB cable line to connect GT200-HT-RS and PC, set bit 2 of DIP switch to ON, and power on the product. Open the “Computer Management” of PC, you will find there is one new COM port under “Port (COM&LPT), as shown “STMicroelectronics Virtual COM Port (COM3), that is the...
- Page 42 Noted: Different computer, the serial number will be different. Open SST-HT-CFG software, click “Config” and choose Serial port, here choose COM3, as shown below: After choosing serial port, click “Upload” on the toolbar, WWW.SSTCOMM.COM...
- Page 43 After clicking Upload data, it will show uploading succeeded: WWW.SSTCOMM.COM...
- Page 44 WWW.SSTCOMM.COM...
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Page 45: Working Principle
5 Working Principle Inside the gateway it opens up a length of 5000 bytes of memory as the data exchange of input and output buffers. Memory of 0 to 2999 acts as the storage area of the HART input data and device status. Memory of 3000 to 4999 acts as storage area of the HART output data and control variables. - Page 46 4001 0500L Polling enabled 4002 0501H Trigger label 4003 0501L Trigger command number 4004-4269 0502-0634 Reserved 4270 0635H Universal send label 4271 0635L Universal mode enabled 4272-4273 0636 Universal send data length 4274-4573 0637-0786 Universal to send data The HART data input area: Store the data that HART slave device sends to gateway. ...
- Page 47 4---- Error defined in agreement 5---- Not connected Universal Receive label: The receive label under the universal mode, this value which changes one time indicates that HART end receives a HART frame Universal receive data length: Indicating the received data length under the universal mode ...
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Page 48: Flowchart Of Executing One Hart Command
5.1 Flowchart of Executing One HART Command Current command Initialization Input Data Output Data output Data State Data Satisfy the Execute Quit polling output command Slave's Sent to the slave response command frame Satisfy Change of state output Field instruments The next Meet the command... -
Page 49: Trigger Command
considered to be (1/19200) * 10 * 3.5 ≈ 2ms. The other is to start transmit-receive of HART common frame of HART indirectly through Modbus command, here is an example: 06H command "common mode enable" bit is 1 10H command will write the data to a continuous region which address begins from “Universal mode send data”... -
Page 50: Data Exchange With Modbus
gateway to finish a trigger operation. Parts of response data in the device will be stored to "the receive data memory" which specified by this command number. 5.4 Data Exchange with Modbus When fieldbus is configured as "Modbus slave", user can exchange data, inquire about the status of gateway and manage according to the corresponding address of gateway in the internal input and output buffer;... -
Page 51: Installation
6 Installation 6.1 Machine Dimension Size: 0.98 in (width)*3.94 in (height)*3.54 in (depth) 6.2 Installation Method Using 1.38 in (35mm) DIN RAIL WWW.SSTCOMM.COM... - Page 52 Installing the gateway Uninstalling the gateway WWW.SSTCOMM.COM...
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