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38 

 

 

6.2 Start/Stop 

through Modbus 

 

 

 

The following example shows how the user can start and stop the RSGD unit 
through Modbus. 

Step 1: Go to the 

Settings

 window. 

 

 

 

 

 

 

 

 

 
 

Step 2: Click on the 

Inputs

 settings, set the 

Control Mode

 to 

Modbus Mode

 and 

click save. 

 

 

 

 

 

 

 
Step 3: Go to the 

Dashboard

 window and start the load by clicking on the on/off 

button.  

 

Step4: Click the on/off button to stop the load. 

Содержание RSGD

Страница 1: ...RSGD 75mm Modbus Protocol Rev 2 0...

Страница 2: ...to one communication 8 3 4 One to many communication 9 3 5 Automatic Connection 10 3 6 Manual Connection 11 Chapter 4 SCS User Interface 4 1 Software structure 12 4 2 Toolbar icons 12 4 3 Dashboard wi...

Страница 3: ...nstruction manual carefully If the product is used in a way not specified by the producer the protection provided by the product may be impaired 1 3 Precautions For your safety the following symbol is...

Страница 4: ...f the PC meets the above system requirements you can download the latest version of the setup_SCS_2 0 zip from our website http gavazziautomation com nsc HQ EN soft_starters 2 2 Installing the softwar...

Страница 5: ...Software Choose a location to install the software or click next to continue with the default location Click next to start the installation Once the installation is complete you should see the Carlo...

Страница 6: ...les installed by SCS will be removed from your PC The following steps instruct you to uninstall the software from your PC Open the Control Panel in Windows and under Programs click on Uninstall a prog...

Страница 7: ...ation parameters can be modified 3 2 Installation In order to be able to establish communication between a PC or a controller and the RSGD you will need to connect a raw cable between the communicatin...

Страница 8: ...tion the RSGD unit must be first powered up with the specified supply voltage If the supply LED is green fixed on the soft starter you can establish communication with the soft starter The software pr...

Страница 9: ...mmunication with the soft starter The software provides two methods to establish one to many communication a Automatic connection more details in section 3 5 b Manual connection more details in sectio...

Страница 10: ...The software starts to find all the devices attached to the serial port If connection is successful the following window will appear if you have established communication In the event that communicati...

Страница 11: ...arameters and click on the Connect icon If connection is successful the following window will appear if you have established communication In the event that communication is not established the follow...

Страница 12: ...icons in the toolbar in order to choose among the main windows of the software Toolbar icons Icon Description Open the Dashboard window Open the Settings window Open the Variables window Navigate to a...

Страница 13: ...h the software from the Settings window under the Inputs section If this command is ON as soon as the soft starter resets from an alarm the load will switch ON Refresh command When Start Command Refre...

Страница 14: ...whether or not the soft starter is in alarm condition Status of Top of Ramp Relay This variable indicates whether or not the soft starter is in bypass mode Status of Run Relay This variable indicates...

Страница 15: ...BLE DISABLE Remote Reset PTC The remote reset and PTC can be OPEN SHORT c Voltage Current Monitoring This function monitors either one of the following variables Line to Line voltage V Line current A...

Страница 16: ...r Power factor PF Power kWh To select between the aforementioned variables you must click on the upper right hand corner of the widget and the following screen shall appear e Temperature Monitoring Th...

Страница 17: ...wing screen shall appear f Scope This function works the same way as an oscilloscope and it can monitor either one of the following variables Line to Line voltage V Line current A To select between th...

Страница 18: ...oftstarter will not respond to a start command if it is in Alarm state h Sales Engineering The following variables and settings are password protected Junction Temperature o C Virtual Motor Temperatur...

Страница 19: ...ock these variables and settings you must enter the correct access code The access code can be obtained from Carlo Gavazzi sales support If the access code is incorrect the following message will be d...

Страница 20: ...e sure that the RSGD is in idle state while parameters are modified The functions provided by the Settings window are a Delays This function contains the delays related to stop to start and start to s...

Страница 21: ...alarm limits c Communication In this function the user can visualise and modify the communication parameters The default communication parameters can be found in Chapter 3 Section 3 1 The communicati...

Страница 22: ...so enable disable the Start Command Refresh a k a heartbeat signal The factory default Control Mode is set to A1 A2 mode If the Start Command Refresh is disabled the load remains switched ON in case c...

Страница 23: ...or CSV csv format which contains information about the last 32 starts performed For further information on the content of the history file we advise you to contact Carlo Gavazzi sales support g Reset...

Страница 24: ...4 5 Variables window The Variables window lists the instantaneous variables and the counters available for the RSGD units The functions provided by the Variables window are a Power Monitoring b Operat...

Страница 25: ...25 c Voltage Monitoring d Current Monitoring e General Counters...

Страница 26: ...arter will trip Shorted SCR In case the RSGD detects that there is a damaged shorted thyristor SCR on any of the three phases the soft starter will trip Wrong Phase Sequence If the connection to the s...

Страница 27: ...ered This condition can be triggered by too many starts per hour an over load condition during starting and or stopping or a high surrounding temperature Overload The overload alarm can be triggered i...

Страница 28: ...gisters 04h This function code is used to read the contents of a 1 input register word The request frame specifies the starting register address and the number of registers to be read The register dat...

Страница 29: ...th Value Note Physical Address 1 byte 1h to F7h 1 to 247 Function Code 1 byte 06h Starting Address 2 bytes 0000h to FFFFh Byte order MSB LSB Quantity of Registers N word 2 bytes 0000h to FFFFh Byte or...

Страница 30: ...efer to Appendix Alarm Counters Lists the number of times a particular alarm has occurred General Counters Includes counters related to operational use Instantaneous Voltage and Current Lists the inst...

Страница 31: ...rrent limit x10 332776 8007h 1 System Voltage UINT16 System voltage x10 Device Status Read only mode function 04h Modicon Address Physical Address Length words Description Data Format Notes Scaling Fa...

Страница 32: ...No action 0001h Reset alarm Control Read only mode function 04h Modicon Address Physical Address Length words Description Data Format Notes Scaling Factor 328673 7000h 1 Control Mode UINT16 Control Mo...

Страница 33: ...s UINT16 Time from Last Stop x1 336868 9003h 1 Time from Last Start s UINT16 Time from Last Start x1 Write only mode function 06h Modicon Address Physical Address Length words Description Data Format...

Страница 34: ...4 starts present in history x1 349157 C004h 64 Start 17 to Start 20 UINT16 Data of the fifth set of 4 starts present in history x1 349158 C005h 64 Start 21 to Start 24 UINT16 Data of the sixth set of...

Страница 35: ...16 Number of power up x1 316394 4009h 1 Number of power down UINT16 Number of power down x1 Instantaneous Voltage and Current Variables Read only mode function 04h Modicon Address Physical Address Len...

Страница 36: ...n Data Format Notes Scaling Factor 312545 3100h 1 Poutput kW UINT16 Average active power output x10 312546 3101h 1 Qoutput kVAr UINT16 Average reactive power output x10 312547 3102h 1 Soutput kVA UINT...

Страница 37: ...how the user can change the communication parameters of the RSGD unit Step 1 Go to the Settings window Step 2 Click on the Communication settings Step 3 Change the communication parameters as desired...

Страница 38: ...stop the RSGD unit through Modbus Step 1 Go to the Settings window Step 2 Click on the Inputs settings set the Control Mode to Modbus Mode and click save Step 3 Go to the Dashboard window and start t...

Страница 39: ...the RSGD unit using force refresh signal Step 1 Go to the Settings window Step 2 Click on the Inputs settings set the Control Mode to Modbus Mode enable the Start Command Refresh set the Refresh Inter...

Страница 40: ...40 Step4 During the Refresh Interval click on the Refresh Command button so that the load remains on Step 5 Do not click on the Refresh Command button when you want to stop the load...

Страница 41: ...MSB2 LSB16 MSB16 All data received is expressed in hexadecimal Example Read the data of the last 32 starts recorded in the RSGD memory Step 1 Read data from address C000h Request Frame Description Va...

Страница 42: ...Function Code 84h Exception Code 01h 02h 03h CRC Step 2 Divide the received data into four blocks of 32bytes of data Start 1 0100AF8741020F910080300800009904000000000000750C0080200848490020h Start 2 0...

Страница 43: ...ax IL3 during ramp up The maximum current measured on phase 3 during ramp up P HP mode Indicates if start was done in HP Q Time to reach full speed The time duration that the motor took to reach full...

Страница 44: ...ax IL3 during ramp up 2A P 0 0 HP mode 0 Q 0 x0 001 0 000 Full speed reached at 0 000s R 1177 x0 001 1 177 Cont current reached at 1 177s S 0 0 Max IL1 during bypass 0A T 0 0 Max IL2 during bypass 0A...

Страница 45: ...store the result in variable Convert to decimal and store the result in variable Conversion result Value System Voltage V Phase Sequence 10 220 ve ph seq 11 220 Undefined 12 220 ve ph seq 19 400 ve p...

Страница 46: ...SB3 to binary bitwise AND by 0b00100000 and store the result in variable Right arithmetic shift by 5 and store the result in variable Convert to decimal and store the result in variable Conversion res...

Страница 47: ...e M N Format LSB5 MSB5 Bits 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 Code N O P Format LSB6 MSB6 Bits 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 Code Variable Conversion Statement Comments...

Страница 48: ...mat LSB7 MSB7 Bits 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 Code Variable Conversion Statement Comments Q Time to reach full speed Convert MSB7 to decimal multiply by 256 and store...

Страница 49: ...ble Conversion result N A T Max IL2 during bypass Convert MSB9 to binary bitwise AND by 0b00111111 left arithmetic shift by 4 and store the result in variable Convert LSB10 to binary right arithmetic...

Страница 50: ...80 181 182 183 184 185 186 187 188 189 190 191 Code Variable Conversion Statement Comments W Ramp down duration Convert MSB12 to decimal multiply by 256 and store the result in variable Convert LSB12...

Страница 51: ...and store the result in variable Conversion result N A Z Max IL3 during ramp down Convert LSB14 to binary bitwise AND by 0b00001111 left arithmetic shift by 6 and store the result in variable Convert...

Страница 52: ...able Conversion result Value State 0 Internal fault 1 Spare 2 Spare 3 Short circuit during idle 4 Short circuit during ramp 5 Spare 6 Negative phase sequence 7 Spare 8 Spare 9 Synchronisation loss 10...

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