Varec 8315 Series manual Communications, 3.1 COM0 J7

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8300	Hardware

2.2.3Communications

The Communications installation requires connection of the appropriate communication cable to one of two connectors. The available options include RS-232 and RS-485 communications.

•COM0 (RS-232) (J7)

•COM1 (RS-232 or RS-485) (J5)

•COM1 Transmit Control (RS-232) (J6)

•COM1 Hardware Handshaking Switch (SW1)

• COM1 RS-232/RS-485 Selection Switch (SW2)
• COM1 RS-485 Terminating Resistor Jumper (W2)
Figure 2-10:Com1 J5 Terminal Block
				+	VFIELD
				-	VFIELD
			J5
	EARTH			A/TXD
A B	NEUTRAL			A/TXD
	LINE
	SURGE GND			B/RXD
	+	VFIELD		B/RXD
RS232	+
	-
COM1
	A/TXD			GND	COM1
RS485	B/RXD
	GND	COM1
	RTS
	CTS
	TXD		J6
	RXD	COM 0		RTS
	GND
	+15V	AUX
	+5V	POWER
	GND	POWER
	-15V			CTS
				CTS
				TXD
				RXD	COM 0
					COM 0
				GND
			J7		AUX
		D=48V		+15V	AUX
		D=24V		+5V	POW
				+5V	POW

2.2.3.1COM0 (J7)

COM0 is an RS-232 port for use in diagnostic testing/local programming or communications to a host system. The

protocol defaults to TankGate Slave at the 9600 baud, 8 data bits, and no parity (for use with ViewRTU or FuelsManager).

Figure 2-11:Com 0 J7 Terminal Block
	EARTH			CTS
A B	NEUTRAL
	LINE
	SURGE GND
RS232	+	VFIELD		TXD
RS232	-	VFIELD		TXD
COM1					COM
	A/TXD
RS485	B/RXD			RXD
	GND	COM1
	RTS	COM1
	CTS				0
					0
	TXD			GND
	RXD	COM 0
	GND	COM 0
	+15V	AUX POWER	J7
	+5V
	GND
	-15V				AUX
				+15V	AUX
				+5V	POWER
				GND	POWER
				GND
			J8	-15V
			J8
					11

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Contents Installation Operations Manual Page Copyright Disclaimer of Warranties Safety Precaution Definitions Safety Precautions Using ViewRTU InstallationTroubleshooting and maintenance OverviewContents System Information SYS Using ViewRTU Troubleshooting Features VersionsApplications Power Supply Specifications System DesignPower consumption Operating temperatureStorage temperature HumidityMechanical Construction Overview TankGate Interface Hardware Motherboard Description Hardware Block DiagramTankGate motherboard Field Power Vfield terminal block J3 Unit AC Input Power terminal block J2Auxiliary DC Output Power terminal block J8 Surge Protection Surge Gnd terminal block J4Field Voltage Selection Jumper W3 AC Power Fuses F1,F2Switches and Indicators Reset push-button SW3Hard Reset 3.1 COM0 J7 Communications3.3 COM1 RS232/RS-485 Selection Switch SW2 3.4 COM1 Hardware Handshaking Switch SW13.2 COM1 RS-232/RS-485 J5 SW2 Set Tion Physical Handshak Ting Layer Ing Communica HardwareWith RTS / CTS RS-232J6 TankGate Communications Cable8315 L&J Tankway Interface Module Model 8315 TankGate DescriptionLED Indicators D1-D6 ID DIP Switch SW1Surge/Shield Ground Connector J4 External Power Connector +48V J2Connect the field wiring Field Wiring terminal block J38315 L&J Tankway Interface Module TankGate Interface Software Features Real-Time / Multitasking Executive Automatic Fault RecoveryReal-Time Clock Data Scanning Task ProtocolsDatabase Manager System TasksTankGate 8315 Software Blocks TankGate Software BlocksPoint Format Database OrganizationParameter Description Parameter ClassesParameter Data Formats Common ParametersData Format Description PntStatus Parameter PntCheckSum ParameterElapse Parameter Value ParameterStandard Request-Response Format Gathering Point DataChange of State Format Change of State-Related ParametersDeadband Modbus Slave Modbus CommunicationsFixed Modbus Map Function Code Description CommentsAddress Type Number Parameter Data Type Gwblk method 8315 L&J Tankway Software Description TankGate Interface Data Address Parameter Comments Clock CLK Configuration Parameters FunctionParameters Dynamic Parameters FunctionCommunications COM Configuration Function ParametersApplication Floating Point Register Fpreg Dynamic Function ParametersReal 4 bytes value API Emulator EMUByte value indicating status of point Values are Current Command Configuration Parame Function TersEMU 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 CRC-16 Checksum of points static Configuration Parameters Byte value indicating status of point Values are No errorSize Parameter Addr1 is the Data Address and PntRef1 is the correspondingInteger 2 bytes value Integer Register IregCurrent request message, displayed in hex format Modbus Gateway ModgwCurrent command. Values include Dynamic Parame Function Ters Scaler Point ScalerOutput 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 Number of gauge polls since last reset Command currently being sent to the gaugeNumber of gauge polls which resulted in an error 20 L&J Scanner LjscanOut 8315 L&J Tankway Software Description TankGate Interface Installation Safety Guidelines General Safety GuidelinesInstallation Mounting the TankGate inside the enclosure Mounting the TankGateInstalling Communications Wiring Up PowerMounting the Enclosure Select the Unit addressRS-485 Communications Power-UpInitial system verification Establishing Host CommunicationsInstallation TankGate Interface Overview Installing ViewRTUSystem Requirements Executing ViewRTUViewRTU Version Selection dialog ViewRTU window ViewRTU Menu BarFile Menu Point Menu Select Point to Add dialog box EditEdit Point selection dialog Edit Point dialog DeletePoint deletion dialog Config Menu Download Database to RTUUpload Database from TankGate Creating a Password To enter the passwordChanging the Password Changing the PasswordPC Setup Communications MenuStatus Port Communications Setup dialogOptions Menu ConnectTankGate search dialog Convert ViewRTU versions dialog Convert Configuration FilesExport All Import AllHelp Menu Using ViewRTUConfiguring Single Points Edit Digital Point dialog Edit Point Window Push-buttonsMinimize Connections Minimizing the Edit Point WindowNext PreviousUpload To modify a ValueTo modify a value Edit point parameter value dialogTo modify a Reference Configuring Multiple PointsEdit point parameter reference dialog Adding Multiple PointsAdding Multiple Points Spreadsheet ModeEdit Menu Point MenuCopy PastePaste & Dnld Set ValueSet Value with Auto Increment Options Menu ImportExport View Hide Row/ColParameter Type Description Unhide All Creating and Editing ConnectionsDisplaying the Point Connections window Point Connections WindowTo create a Connection Using ViewRTU TankGate Interface Indicator Condition Run indicatorCommunications indicator Using the TankGate Push-buttonsLED Displays under Abnormal Conditions 1.3 TXD/RXD LEDsPress the Reset button Performing a Hard ResetSet the ID DIP switch to the desired addresses Replacing a defective component or module MaintenanceTroubleshooting TankGate Interface 102 Ordering Structure Nema 4 Enclosure Ordering Structure Remote Terminal Unit TankGateModbus Map Value12 Fpreg 3034 3094 8300 Your official representative Your offical representative