Document Outline

• Contents
• 1 Overview
  • 1.1 Versions
  • 1.2 Features
  • 1.3 Applications
  • 1.4 Specifications
    • 1.4.1 System Design
    • 1.4.2 Software Functionality
    • 1.4.3 Host Communication
    • 1.4.4 Modbus Functionality
    • 1.4.5 Power Supply
    • 1.4.6 Power consumption
    • 1.4.7 Surge protection
    • 1.4.8 Operating temperature
    • 1.4.9 Humidity
    • 1.4.10 Storage temperature
    • 1.4.11 Mechanical Construction
• 2 Hardware
  • 2.1 Hardware Block Diagram
  • 2.2 Motherboard Description
    • 2.2.1 Power Supply
    • 2.2.2 Switches and Indicators
    • 2.2.3 Communications
• 3 8215 L&J Tankway Communications Interface Module
  • 3.1 Features
  • 3.2 Description
    • 3.2.1 ID DIP Switch (SW1)
    • 3.2.2 LED Indicators (D1-D6)
    • 3.2.3 External Power Connector (+48V) (J2)
    • 3.2.4 Surge/Shield Ground Connector (J4)
    • 3.2.5 Field Wiring terminal block (J3)
• 4 Software Description
  • 4.1 Software Features
    • 4.1.1 Real-Time / Multitasking Executive
    • 4.1.2 Real-Time Clock
    • 4.1.3 Automatic Fault Recovery
    • 4.1.4 Communications
    • 4.1.5 Protocols
    • 4.1.6 Data Scanning Task
    • 4.1.7 Database Manager
    • 4.1.8 System Tasks
    • 4.1.9 Tank Gate Interface Software Blocks
  • 4.2 Database Organization
    • 4.2.1 Point Format
    • 4.2.2 Parameter Description
  • 4.3 Gathering Point Data
    • 4.3.1 Standard Request-Response Format
    • 4.3.2 Change of State Format
    • 4.3.3 Change of State-Related Parameters
    • 4.3.4 Modbus Communications
    • 4.3.5 Fixed Modbus Map
    • 4.3.6 GWBLK method
  • 4.4 Common Software Blocks
    • 4.4.1 Clock (CLK)
    • 4.4.2 Communications (COM)
    • 4.4.3 Floating Point Register (FPREG)
    • 4.4.4 Emulator (EMU)
    • 4.4.5 EMU Gateway (EMUGW)
    • 4.4.6 Gateway Block (GWBLK)
    • 4.4.7 Integer Register (IREG)
    • 4.4.8 Modbus Gateway (MODGW)
    • 4.4.9 Scaler Point (SCALER)
    • 4.4.10 System Information (SYS)
• 5 L&J Tankway Software Blocks
  • 5.1 L&J MCG1000 Tank Gauge (LJ1000)
    • 5.1.1 Parameters
    • 5.1.2 Application
  • 5.2 L&J MCG1200 Tank Gauge (LJ1200)
    • 5.2.1 Parameters
    • 5.2.2 Application
  • 5.3 L&J MCG1500 Tank Gauge (LJ1500)
    • 5.3.1 Parameters
    • 5.3.2 Application
  • 5.4 L&J MCG2000 Tank Gauge (LJ2000)
    • 5.4.1 Parameters
    • 5.4.2 Application
  • 5.5 L&J Scanner (LJSCAN)
    • 5.5.1 Parameters
    • 5.5.2 Application
• 6 Installation
  • 6.1 General Safety Guidelines
  • 6.2 Installation Safety Guidelines
  • 6.3 Installation
    • 6.3.1 Mounting the Tank Gate Interface
    • 6.3.2 Select the Unit Address
    • 6.3.3 Wiring Up Power
    • 6.3.4 Grounding
    • 6.3.5 Installing Communications
• 7 Using ViewRTU
  • 7.1 Overview
  • 7.2 System Requirements
  • 7.3 Installing ViewRTU
  • 7.4 Executing ViewRTU
    • 7.4.1 ViewRTU window
  • 7.5 The ViewRTU Menu Bar
    • 7.5.1 The File Menu
    • 7.5.2 The Point Menu
    • 7.5.3 The Config Menu
    • 7.5.4 The Communications Menu
    • 7.5.5 The Options Menu
    • 7.5.6 The Help Menu
  • 7.6 Using ViewRTU
    • 7.6.1 Overview
    • 7.6.2 Configuring Single Points
    • 7.6.3 To modify a Value
    • 7.6.4 Configuring Multiple Points
    • 7.6.5 Creating and Editing Connections
• 8 Troubleshooting
  • 8.1 Overview
  • 8.2 Troubleshooting the Tank Gate Interface
    • 8.2.1 LED Displays under normal conditions
    • 8.2.2 LED Displays under Abnormal Conditions
    • 8.2.3 Using the Tank Gate Interface Push-buttons
    • 8.2.4 Performing a Hard Reset
  • 8.3 Maintenance
• A Appendix - Order Codes