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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; Also you

can do some trigger operation and transmission of common frame.

Summary of Contents for GT200-HT-RS

Page 1: ...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: ...witch 12 3 3 2 Modbus Address Setting Button 13 3 3 3 Internal External Sampling Resistor Switch 13 3 4 Interface 14 3 4 1 Power Interface 14 3 4 2 RS 485 RS 422 Interface 14 3 4 3 RS 232 Interface 15...

Page 3: ...s 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 Insta...

Page 4: ...econdary HART master 2 Supports one HART channel under multi point mode support connecting at most 13 HART slaves with gateway internal resistor and support connecting 15 HART slaves with an external...

Page 5: ...External dimensions W H D 0 98 in 3 94 in 3 54 in 25mm 100mm 90mm 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...

Page 6: ...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 3 Power on the gateway the LED display shows CF indicates that the gatewa...

Page 7: ...allowed to exist at the same time The Slave with address 1 15 works in multi point mode In multi point mode the analog output of the device is the minimum value e g 4mA only allows digital communicat...

Page 8: ...ck 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 t...

Page 9: ...e 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 mast...

Page 10: ...WWW SSTCOMM COM 10...

Page 11: ...is for reference only Product appearance should refer to the real object HART Interface LED Display Power Interface RS 485 RS 422 RS 232 Interface DIP Switch Serial State Indicator HART State Indicato...

Page 12: ...The DIP switch is located at the bottom of product bit 1 is the debug bit and bit 2 is the configuration bit Debugging bit 1 Configuration bit 2 Description Off Off Run Mode Off On Configuration Mode...

Page 13: ...ast 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...

Page 14: ...85 transmission technology Network topology Linear bus there are active bus terminal resistors at both sides Transmission rate 1200 bps 115 2Kbps Media Shielded twisted pair cable and also can cancel...

Page 15: ...ble open terminal and user can wire it according to the wiring instructions on the panel 5 pin terminal GND D D 1 2 3 4 5 R R Pin Function 1 R RS 422 Receive Negative 2 R RS 422 Receive Positive 3 GND...

Page 16: ...vice 3 GND Connect RS 232 s GND of user device 3 4 4 HART Interface Pin Function 1 Connect HART signal positive 2 Connect HART signal negative 3 NC 3 4 5 Mini B Type USB Mini B type USB interface is d...

Page 17: ...WWW SSTCOMM COM 17 3 5 Topology of GT200 HT RS and Fieldbus Devices...

Page 18: ...ed the HART slave instrument and gateway uses separate power supply so that the gateway can immediately establish communication with instrument 2 When configuring HART commands in the software SST HT...

Page 19: ...re the product GT200 HT RS You may also check the software user manual to get detailed usage Double click on the icon to enter the main interface of software Tool Bar Toolbar interface shown as follow...

Page 20: ...g 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...

Page 21: ...unction could analyze operating condition of fieldbus device also it can finish some certain analysis Debug through this function could send any request frame to Hart fieldbus and show the response in...

Page 22: ...ad 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 functiona...

Page 23: ...a 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 When the serial need to communicate with...

Page 24: ...ly through serial port RS 232 RS 485 RS 422 meantime gateway also will send out the data received from HART bus through serial port In this process the data don t change Click the Fieldbus in the tree...

Page 25: ...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 w...

Page 26: ...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 t...

Page 27: ...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 t...

Page 28: ...put Execute the command only once when power is on Disable output the command will not be sent Memory starting address of sending data Set the memory starting address of output data by this command th...

Page 29: ...ct the command need to be deleted Right click the mouse and click Delete Command Through the menu command can also be the same action 4 2 4 6 Delete Nodes Select the node needed to be deleted Right cl...

Page 30: ...RT 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 For example Comman...

Page 31: ...of Memory Address Note this address is not a single address that is the same memory area which it occupied Byte swap there are two options no swap and register swap swap option is only valid to float...

Page 32: ...s and send data storage Upper side is memory distribution of the HART s sending data lower side is memory distribution of the HART s receiving data When one memory unit is configured with two commands...

Page 33: ...e gateway 4 2 8 Memory Data Display Show the data exchange inside of the gateway users can use this function to debug the HART fieldbus in the absence of the Modbus master station Steps are as follows...

Page 34: ...ng data 4 2 9 Diagnose Through this function users will know which device is not communicating execution condition of configured commands data transmit of gateway and displays of certain command opera...

Page 35: ...WWW SSTCOMM COM 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...

Page 36: ...ically 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 Click Refresh will fresh these command status Perio...

Page 37: ...lick 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 v...

Page 38: ...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 cor...

Page 39: ...short address when you click Send you will get the response data Note Under this function gateway will stop to execute the configured command Turn off this function gateway will return to execute the...

Page 40: ...the same as RS 232 under configuration and debug 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 P...

Page 41: ...his 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...

Page 42: ...M 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 o...

Page 43: ...WWW SSTCOMM COM 43 After clicking Upload data it will show uploading succeeded...

Page 44: ...WWW SSTCOMM COM 44...

Page 45: ...1639 810 819 Device 1_cmd0 data Device 15_cmd0 data 1920 960H Gateway status 1921 960L Send times of Gateway s HART port 1922 961H Receive times of Gateway s HART port 1923 961L HART communication err...

Page 46: ...e No 0 command to obtain the device information to obtain the long address The response data of this internal command is stored in this area Gateway status The gateway status indicates what the gatewa...

Page 47: ...counter to 0 Polling is enabled This bit is readable and writable writing 1 enables the polling output writing 0 disables polling output Reading 1 indicates that the polling state is enabled 0 indicat...

Page 48: ...N Sent to the slave command frame Quit 5 2 Universal Send and Receive Data There are two universal ways for user to select One is that fieldbus is defined as universal mode The gateway will receive th...

Page 49: ...Universal received data length Then change the value of the Universal receive label If no data is received within the response waiting time the gateway will order universal receive error counter to p...

Page 50: ...h 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 corr...

Page 51: ...WWW SSTCOMM COM 51 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...

Page 52: ...WWW SSTCOMM COM 52 Installing the gateway Uninstalling the gateway...

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