Modbus Software

ASComm.NET

Modbus Driver Suite includes both Modbus TCP Client & Modbus RTU/ASCII Master driver for .NET Framework


Click the button below to download Machine Edition

(Includes 30 Day Trial License for new users)

ASComm.NET

Modbus Driver Suite Product Summary

ASComm.NET Modbus Software, Modbus Driver Suite includes both our Modbus TCP Client driver and our Modbus RTU/ASCII driver (Master driver).

Our Modbus TCP Client driver provides high-performance connectivity to Modbus/TCP Server controllers, instruments, and devices via Ethernet.

Our Modbus RTU/ASCII Master driver provides high-performance connectivity to Modbus RTU/ASCII Slave PLCs, controllers, instruments, and other devices via serial port and Ethernet.

Use Visual Basic, C#, C++, and ASP.NET to create HMI, SCADA, data logging, and IIoT applications targeting Win Forms, WPF, Web, console, service, and Linux.

Allows your .NET application to read/write registers on Modbus/TCP Server devices and Modbus RTU/ASCII Slave devices.

Powerful pre-built example applications with VB and C# source code included in development package.

Runtime-free for qualified applications

Download 30 Day Trial
Revision History
License Agreement
License Instructions

Catalog Information

For detailed information on each license option, choose the license type using the buttons below.

For developers who need to build deployable applications.

One development license is required for each development seat.

For multiple developers, consider Team Edition licensing.

Projects built with a Developer Edition License generate an embedded runtime license which is embedded into your executable assembly.

The embedded runtime license system eliminates the need for license activation steps on runtime PCs.


  Standard Support Limited Support
Catalog Item ASCOMM-MB.MASTER.SUITE-FD-S ASCOMM-MB.MASTER.SUITE-FD
Price (USD) $699 $599
Tech Support 12 Months 30 Days
Updates 12 Months Current Version Only
Online Purchase Buy Now Buy Now
Offline Purchase Order Form or Call
Version View Revision History
Availability Immediate via Internet Download

Standard Support

Catalog Item: ASCOMM-MB.MASTER.SUITE-FD-S
Price (USD): $699
Tech Support: 12 Months
Updates: 12 Months
Online Purchase: Buy Now
Offline Purchase: Order Form or Call
Version: View Revision History
Availability: Immediate via Internet Download


Limited Support

Catalog Item: ASCOMM-MB.MASTER.SUITE-FD
Price (USD): $599
Tech Support: 30 Days
Updates: Current Version Only
Online Purchase: Buy Now
Offline Purchase: Order Form or Call
Version: View Revision History
Availability: Immediate via Internet Download

For development teams that need to build deployable applications.

Team Edition offers discounted Developer Edition Licenses for development teams starting at two seats.

Team Edition accounts are managed by a single account administrator.

Projects built with a Team Edition license generate an embedded runtime license which is embedded into your executable assembly.

The embedded runtime license system eliminates the need for license activation steps on runtime PCs.


  Two Developer Team Three Developer Team Four Developer Team Five Developer Team
Catalog Item ASCOMM-MB.MASTER.SUITE-TEAM-2 ASCOMM-MB.MASTER.SUITE-TEAM-3 ASCOMM-MB.MASTER.SUITE-TEAM-4 ASCOMM-MB.MASTER.SUITE-TEAM-5
Price (USD) $1118 $1537 $1956 $2375
Online Purchase Buy Now Call to Order Call to Order Call to Order
Offline Purchase Order Form or Call
Tech Support 12 Months
Updates 12 Months
Version View Revision History
Availability Immediate via Internet Download

Two Developer Team

Catalog Item: ASCOMM-MB.MASTER.SUITE-TEAM-2
Price (USD): $1118
Tech Support: 12 Months
Updates: 12 Months
Online Purchase: Buy Now
Offline Purchase: Order Form or Call
Version: View Revision History
Availability: Immediate via Internet Download


Three Developer Team

Catalog Item: ASCOMM-MB.MASTER.SUITE-TEAM-3
Price (USD): $1537
Tech Support: 12 Months
Updates: 12 Months
Online Purchase: Call to Order
Offline Purchase: Order Form or Call
Version: View Revision History
Availability: Immediate via Internet Download


Four Developer Team

Catalog Item: ASCOMM-MB.MASTER.SUITE-TEAM-4
Price (USD): $1956
Tech Support: 12 Months
Updates: 12 Months
Online Purchase: Call to Order
Offline Purchase: Order Form or Call
Version: View Revision History
Availability: Immediate via Internet Download


Five Developer Team

Catalog Item: ASCOMM-MB.MASTER.SUITE-TEAM-5
Price (USD): $2375
Tech Support: 12 Months
Updates: 12 Months
Online Purchase: Call to Order
Offline Purchase: Order Form or Call
Version: View Revision History
Availability: Immediate via Internet Download

For developers and/or end users who need to build and/or run on a single PC.

Machine Edition Licenses cannot be used to build deployable applications.

Projects built with a Machine Edition License do not generate an embedded runtime license. Instead, ASComm.NET will look for a physical license file on the PC.


  Single License Five License Pack Ten License Pack 25 License Package
Catalog Item ASCOMM-MB.MASTER.SUITE-SM-1 ASCOMM-MB.MASTER.SUITE-SM-5 ASCOMM-MB.MASTER.SUITE-SM-1 ASCOMM-MB.MASTER.SUITE-SM-2
Price (USD) $199 $796 $1393 $2985
Online Purchase Buy Now Buy Now Call or Order Call or Order
Offline Purchase Order Form or Call
Tech Support 30 Days
Updates Current Version Only
Version View Revision History
Availability Immediate via Internet Download

Single License

Catalog Item: ASCOMM-MB.MASTER.SUITE-SM-1
Price (USD): $199
Online Purchase: Buy Now
Offline Purchase: Order Form or Call
Tech Support: 30 Days
Updates: Current Version Only
Version: View Revision History
Availability: Immediate via Internet Download


Five License Pack

Catalog Item: ASCOMM-MB.MASTER.SUITE-SM-5
Price (USD): $796
Online Purchase: Buy Now
Offline Purchase: Order Form or Call
Tech Support: 30 Days
Updates: Current Version Only
Version: View Revision History
Availability: Immediate via Internet Download


Ten License Pack

Catalog Item: ASCOMM-MB.MASTER.SUITE-SM-10
Price (USD): $1393
Online Purchase: Call to Order
Offline Purchase: Order Form or Call
Tech Support: 30 Days
Updates: Current Version Only
Version: View Revision History
Availability: Immediate via Internet Download


25 License Package

Catalog Item: ASCOMM-MB.MASTER.SUITE-SM-25
Price (USD): $2985
Online Purchase: Call to Order
Offline Purchase: Order Form or Call
Tech Support: 30 Days
Updates: Current Version Only
Version: View Revision History
Availability: Immediate via Internet Download

Modbus Software Examples

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Modbus TCP Client Driver Examples

Modbus TCP Client Driver Example Application

Simple Read and Write

modbus software modbus tcp client driver example application

Modbus TCP Client Driver Example Code

modbus software modbus tcp client driver example code

Modbus RTU/ASCII Master Driver Example Application

Simple Read and Write

modbus software modbus rtu/ascii master driver example application

Modbus RTU/ASCII Master Driver Example Code

modbus software modbus rtu/ascii master driver example code

Key Benefits

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Does not require any 3rd party drivers.

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x86, x64, and Any CPU compatible

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Broad .NET target support including Web, Windows, console, and service apps.

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Can be configured programmatically or visually

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Visually design entire communications setup without writing a single line of code

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Supports block transfers of up full file capacity

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Extremely high performance - capable of sub 5 mSec transaction time

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Highly optimized to minimize communications transactions

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Tag database can be configured via code or visual designer

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Abstract base classes allow you to write generic code that works with all drivers

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Runs on Linux with Mono framework

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Synchronous and asynchronous read/write methods

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Data change notifications

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Provides common API across all driver classes

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No limit on number of devices or data points

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Multi-threaded for high data throughput

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Includes extensive help system

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Example applications with VB and C# source code included.

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Easily connect business systems to factory floor systems.

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No shipping charges for online delivery.

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Immediate Internet delivery and online license activation

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No runtime fees or keys for qualified applications

Modbus Compatibility

Modbus Functions

  • 1 - Read Coils
  • 2 - Read Discrete Inputs
  • 3 - Read Holding Registers
  • 4 - Read Input Registers
  • 5 - Write Single Coil
  • 6 - Write Single Register
  • 7 - Read Exception Status
  • 11 - Get Comm Event Counter
  • 12 - Get Comm Event Log
  • 15 - Write Multiple Coils
  • 16 - Write Multiple Registers
  • 17 - Report Slave ID
  • 20 - Read File Record
  • 21 - Write File Record
  • 24 - Read FIFO queue
  • 43 - Read Device ID (MB.Master.Serial)

Address Modes

  • Zero-based
  • One-based
  • Modicon 5-digit (1, 10001, 30001, 40001)
  • Modicon 6-digit (1, 100001, 300001, 400001)

Platform Compatibility

Software

  • Requires .NET framework 2.0 - 4.8
  • Visual Studio 2022
  • Visual Studio 2017
  • Visual Studio 2015
  • Visual Studio 2013
  • Visual Studio 2012
  • Visual Studio 2010
  • Visual Studio 2008

Operating System

  • Windows Server 2019
  • Windows Server 2016
  • Windows 11
  • Windows 10
  • Windows Server 2012
  • Windows 8.x
  • Windows 7 SP1 (requires SHA-2 update)