• Key Features
  • Standard Features
  • Advanced Features
  • Device Support
  • Protocols / Networks
  • Videos & App Notes
  • Help Files & Release Notes
  • Technical Blog
  • Additional Resources

Modbus RTU Serial Key Features Include

  • Maximum Number of Channels & Devices: 
    • Channels - 2048
    • Devices per Channel - 247
    • COM Port Range - 1 to 999
    • NOTE: Practical channel/device limits will vary depending on your available system resources
  • Flexible configuration settings for compatibility with a wide range of Modbus-capable devices
  • Automatic Tag Database Generation (from Concept or ProWORX)
  • Supports the TSXCUSBMBP USB adapter (Revision 1) for the Modbus Plus Network (for Revision 2 adapters use the dedicated Modbus Plus driver in this suite)
  • Supports Ethernet Encapsulation via Ethernet/Serial converters, Ethernet Device or Terminal servers
  • Supports Modbus RTU Multi-drop
  • Supports all memory types and data types
  • Supports Word Order and Byte Order Swapping
  • Supports User Definable Block Sizes

Standard Modbus RTU Serial Features Include

  • Modbus Function Codes Supported: (Blog post - demystifying Modbus Function Codes)
    • Decimal - 01, 02, 03 ,04, 05, 06, 15, 16
    • Hexadecimal - 01, 02, 03 ,04, 05, 06, 0F, 10
  • Full Address Range Support (up to 65,535):
    0xxxx - Output Coils, 1xxxx - Input Coils, 3xxxx - Internal Registers, 4xxxx - Holding Registers
  • Decimal or Hex Addressing Support
  • Supports all memory types and data types including as Word, Float, Long, and Double
  • String Data Type support for Internal Registers
  • String Block Read Support
  • Base Modbus device model supports 32-Bit Data Types as Two Registers
  • Device Model Elliot supports two blocks of native 32-bit registers (405001-405315 and 407001-407315)
  • Automatic Tag Database Generation using CSV Import
  • Supports dynamic tags from your client application
  • Configurable Inter-request delay

Modbus RTU Serial Driver Advanced Features Include

  • Adjustable Address Base ( 0 or 1 )
  • Selectable Function Code for Single Address Writes
  • Word Order Swapping for 32-Bit Data Types
  • Byte Order Swapping on all 16-Bit and 32-Bit Data Types
  • Holding register memory access as string data (HiLo or LoHi byte order)
  • Channel Serialization (Virtual Channels allow multi-protocol support on the same communication channel)
  • Adjustable RTS Flow timing for Radio Modem communications
  • Modbus RTU Multi-Drop Serial Communications
  • Supports Broadcast Messages using Device ID 0
  • Support for Advanced Statistics Tags, including _CommFailures and ErrorResponses

Modbus RTU Serial Supported Devices

  • Modbus Compatible Devices
  • Daniel S500 Flow Computer
  • Dynamic Fluid Meter
  • Elliot Flow Computer
  • Magnetek GPD 515 Drive
  • Omni Flow Computer (Enron Modbus)

For full details on models and networks supported visit the Modbus Suite Supported Devices page and consult the driver help file.

Modbus RTU Serial Supported Protocols / Networks

  • Protocols:
  • Networks:
    • Serial RS-232
    • Serial RS-422
    • Serial RS-485
    • Ethernet Encapsulated Serial - for using Ethernet/Serial convertors, Device Servers, or Terminal server hardware from a variety of suppliers.

Videos / Guides / App Notes to Help You Get Started

To insure you get the most from your investment in TOP Server™, we provide a variety of application notes/guides and how-to videos, since we know that sometimes it helps to see someone showing you how to do things.

Driver Help Files / Release Notes

Use the below links to access TOP Server release history and driver help documentation.

Access use cases, how-tos and more

Real-world use cases, step-by-step how-to's and video tutorials - our blog contains useful resources and information to help you get connected.

Modbus Specific Blog Posts

TOP Server Specific Blog Posts

Overall Software Toolbox Blog Posts

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