Hamilton Sundstrand Company Fuel Metering Valves XVG User Manuals

Table of Contents

• PREFACE

  2
• Table of Contents

  3
• 1 Serial Communication

  4
• 2 Baud Rate

  4
• 3 Parity bit

  4
• 4 Start and Stop Bits

  4
• 5 Electrical Interface Standards

  4
• 6 XVG/eXVG Modbus Communication Default Settings

  5
• 7 Protocol

  5
  • 7.1 General Modbus Frame

    5
  • 7.2 Modbus Transactions

    6
  • 7.3 Modbus Register Types

    6
  • 7.4 Modbus Functions

    7
    • 7.4.1 Read Registers (0x03)

      7
    • 7.4.2 Write Single Register (0x06)

      8
    • 7.4.3 Write Multiple Registers (0x10)

      9
    • 7.4.4 Diagnostics (0x08) (Loopback)

      10
• 8 Connections

  10
  • 8.1 RS-232 Connection (for XVG/eXVG with RS-232 interface)

    11
  • 8.2 RS-485 Connection (for XVG/eXVG with RS-485 interface)

    11
• 9 XVG/eXVG Modbus Parameters

  11
  • 9.1 Setup Parameters

    11
    • 9.1.1 General Setup Parameters

      12
    • 9.1.2 Position Interpolation Parameters

      17
    • 9.1.3 Stroke Position Parameters

      19
    • 9.1.4 Pressure Ratio Parameters

      19
    • 9.1.5 CdA-Pressure Ratio Parameters

      20
    • 9.1.6 Flow Limiting Mode Parameters

      23
  • 9.2 Real Time Parameters

    24
• 10 Write Modbus Application

  31
  • 10.1 Real-Time Status & Parameters Upload Procedure

    32
  • 10.2 Accessing Fault Records Procedure

    33
  • 10.3 Change Gas Constant R and K Procedure

    34
  • 10.4 Download Parameters

    35
  • 10.5 Re-Assign Device Address Procedure

    35