Varec 8315 Series manual 8315 L&J Tankway Software Description TankGate Interface

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8315 L&J Tankway Software Description

TankGate Interface

 

 

Scanning begins when the Module is assigned. The DevType must match the configuration of the transmitter. Conversion from English to Metric can be performed be setting the LevelConvert and the TempConvert parameters in the LJSCAN point associated with the LJ1500 point.

Filtering is performed using the LevelFilter and TempFilter parameters of the associated LJSCAN point. If a change in level greater than the LevelFilter is read from the gauge, the Level parameter is not updated until it has stabilized. A reading is considered stable if it does not change more than the LevelFilter value for the number of readings determined by the Filter parameter. Thus, small changes (less than the LevelFilter) result in the Level being updated immediately. Large changes must pass through the filter and will not be seen until the reading stabilizes. The same strategy is applied to the Temp parameter value using the TempFilter parameter. Since the LevelFilter and TempFilter are associated with the LJSCAN point, it applies to all LJ1000 and LJ1500 points. The number of readings used in the filter algorithm can be set on an individual basis. If no filtering is desired, set the Filter parameter to 0

A separate time-out mechanism is employed to assure that the filter does not prevent a reading from taking place. The LJSCAN parameter ScanTimeout is used to set an alarm bit in the PntStatus parameter if a good reading does not take place in a specified period of time. If there is no response from the gauge, or if there are constant parity errors, or if the level is constantly changing by a value greater than the LevelFilter, then the 0x02 bit of the PntStatus will be set after the ScanTimeout period elapses. The ScanTime parameter in the LJ1500 point is updated each time a good reading takes place. If the ScanTime differs from the Elapse parameter by more than the ScanTimeout, the 0x02 bit is set in the PntStatus.

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Installation and Operations Manual

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Contents Installation Operations Manual Page Copyright Disclaimer of Warranties Safety Precaution Definitions Safety Precautions Installation Using ViewRTUTroubleshooting and maintenance OverviewContents System Information SYS Using ViewRTU Troubleshooting Applications FeaturesVersions Specifications System Design Power SupplyPower consumption Operating temperatureMechanical Construction Storage temperatureHumidity Overview TankGate Interface Hardware Hardware Block Diagram Motherboard DescriptionTankGate motherboard Unit AC Input Power terminal block J2 Field Power Vfield terminal block J3Auxiliary DC Output Power terminal block J8 Surge Protection Surge Gnd terminal block J4AC Power Fuses F1,F2 Field Voltage Selection Jumper W3Hard Reset Switches and IndicatorsReset push-button SW3 Communications 3.1 COM0 J73.2 COM1 RS-232/RS-485 J5 3.3 COM1 RS232/RS-485 Selection Switch SW23.4 COM1 Hardware Handshaking Switch SW1 Communica Hardware SW2 Set Tion Physical Handshak Ting Layer IngTankGate Communications Cable With RTS / CTS RS-232J68315 L&J Tankway Interface Module Description Model 8315 TankGateID DIP Switch SW1 LED Indicators D1-D6External Power Connector +48V J2 Surge/Shield Ground Connector J4Field Wiring terminal block J3 Connect the field wiring8315 L&J Tankway Interface Module TankGate Interface Real-Time Clock Software Features Real-Time / Multitasking ExecutiveAutomatic Fault Recovery Protocols Data Scanning TaskDatabase Manager System TasksTankGate Software Blocks TankGate 8315 Software BlocksDatabase Organization Point FormatParameter Description Parameter ClassesData Format Description Parameter Data FormatsCommon Parameters PntCheckSum Parameter PntStatus ParameterElapse Parameter Value ParameterGathering Point Data Standard Request-Response FormatChange of State Format Change of State-Related ParametersDeadband Modbus Communications Modbus SlaveAddress Type Number Parameter Data Type Fixed Modbus MapFunction Code Description Comments Gwblk method 8315 L&J Tankway Software Description TankGate Interface Data Address Parameter Comments Configuration Parameters Function Clock CLKParameters Dynamic Parameters FunctionConfiguration Function Parameters Communications COMApplication Real 4 bytes value Floating Point Register FpregDynamic Function Parameters Emulator EMU APIByte value indicating status of point Values are Configuration Parame Function Ters Current CommandEMU Gateway Emugw Hex representation of the request sent by the hostDisplays the tank number of the currently selected tank Gauging Systems Inc. Model 2000 Interface GS2000 Last message. The maximum is 255 seconds. The default is Raw2 Gateway Block Gwblk Byte value indicating status of point Values are No error CRC-16 Checksum of points static Configuration ParametersSize Parameter Addr1 is the Data Address and PntRef1 is the correspondingInteger Register Ireg Integer 2 bytes valueModbus Gateway Modgw Current request message, displayed in hex formatCurrent command. Values include Scaler Point Scaler Dynamic Parame Function TersOutput value for the Scaler point Value = Ax + By + Cz + KValue parameter converted to Integer format System Information SYS 17 L&J MCG1000 Tank Gauge LJ1000 PntStatus will be set to indicate the failure Application 18 L&J MCG1500 Tank Gauge LJ1500 Task on the Motherboard determines that the Model 8315 has 8315 L&J Tankway Software Description TankGate Interface 19 L&J MCG2000 Tank Gauge LJ2000 Enables the watchdog task on the Motherboard. The watchdog 8300 Command currently being sent to the gauge Number of gauge polls since last resetNumber of gauge polls which resulted in an error 20 L&J Scanner LjscanOut 8315 L&J Tankway Software Description TankGate Interface General Safety Guidelines Installation Safety GuidelinesInstallation Mounting the TankGate Mounting the TankGate inside the enclosureWiring Up Power Installing CommunicationsMounting the Enclosure Select the Unit addressPower-Up RS-485 CommunicationsInitial system verification Establishing Host CommunicationsInstallation TankGate Interface Installing ViewRTU OverviewSystem Requirements Executing ViewRTUViewRTU Version Selection dialog File Menu ViewRTU windowViewRTU Menu Bar Point Menu Edit Point selection dialog Select Point to Add dialog boxEdit Point deletion dialog Edit Point dialogDelete Upload Database from TankGate Config MenuDownload Database to RTU To enter the password Creating a PasswordChanging the Password Changing the PasswordPC Setup Communications MenuPort Communications Setup dialog StatusTankGate search dialog Options MenuConnect Convert Configuration Files Convert ViewRTU versions dialogExport All Import AllUsing ViewRTU Help MenuConfiguring Single Points Minimize Edit Digital Point dialogEdit Point Window Push-buttons Minimizing the Edit Point Window ConnectionsNext PreviousTo modify a Value UploadTo modify a value Edit point parameter value dialogConfiguring Multiple Points To modify a ReferenceEdit point parameter reference dialog Adding Multiple PointsSpreadsheet Mode Adding Multiple PointsPoint Menu Edit MenuCopy PasteSet Value with Auto Increment Paste & DnldSet Value Export Options MenuImport Parameter Type Description ViewHide Row/Col Creating and Editing Connections Unhide AllTo create a Connection Displaying the Point Connections windowPoint Connections Window Using ViewRTU TankGate Interface Run indicator Indicator ConditionUsing the TankGate Push-buttons Communications indicatorLED Displays under Abnormal Conditions 1.3 TXD/RXD LEDsPerforming a Hard Reset Press the Reset buttonSet the ID DIP switch to the desired addresses Maintenance Replacing a defective component or moduleTroubleshooting TankGate Interface 102 Ordering Structure Remote Terminal Unit TankGate Ordering Structure Nema 4 EnclosureModbus Map Value12 Fpreg 3034 3094 8300 Your official representative Your offical representative