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WSMBS Modbus Master RTU/ASCII Component for .NET

WSMBS is a powerful and simple to use .Net component that makes it easy to access data from a Modbus slave device connected to the PC's serial port. Simply drop the component on your form and talk to your device with your VB.NET, C# or Managed C++.
See the Quick Start Guide.

Download trial version
The trial version is a full featured version with a 30 min connection limit.

You may redistribute the wsmbt.dll assembly with your application program unlimited without any royalty.

WSMBS Technical Facts and Features:

• Modbus RTU.
• Modbus ASCII.
• Sample applications included.
• No runtime fees.

Supported Modbus Functions:

• 01: Read Coils
• 02: Read Discrete Inputs
• 03: Read Holding Registers
• 04: Read Input Registers
• 05: Write Single Coil
• 06: Write Single Register
• 15: Write Multiple Coils
• 16: Write Multiple Registers
• 17: Report Slave ID.
• 22: Mask Write Register
• 23: Read/Write registers

User defined functions:

• Read User Defined Coils.
• Read User Defined Registers
• Write User Defined Coils
• Write User Defined Registers

Examples:

C#
Int16[] Registers = new Int16[10];
WSMBS.Result Result;
Result = wsmbsControl1.ReadHoldingRegisters(1, 0, 10, Registers);

Visual Basic
Dim Registers(10) As Short
Dim Result As WSMBS.Result
Result = WsmbsControl1.ReadHoldingRegisters(1, 0, 10, Registers)

C++
array<Int16>^ Registers = gcnew array<Int16>(10);
WSMBS::Result Result;
Result = wsmbsControl1->ReadHoldingRegisters(1, 0, 10, Registers);

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