https://github.com/c-not-around/u-modbus

Universal simple Modbus RTU/ASCII/TCP/UDP client.
https://github.com/c-not-around/u-modbus

modbus modbus-ascii modbus-client-app modbus-library modbus-rtu modbus-tcp modbus-udp

Last synced: about 1 month ago
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Universal simple Modbus RTU/ASCII/TCP/UDP client.

• Host: GitHub
• URL: https://github.com/c-not-around/u-modbus
• Owner: c-not-around
• Created: 2024-06-17T18:00:49.000Z (about 2 years ago)
• Default Branch: main
• Last Pushed: 2025-07-11T09:00:14.000Z (about 1 year ago)
• Last Synced: 2025-07-11T12:24:53.661Z (about 1 year ago)
• Topics: modbus, modbus-ascii, modbus-client-app, modbus-library, modbus-rtu, modbus-tcp, modbus-udp
• Language: C#
• Homepage:
• Size: 2.88 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# UModbus

UModbus - .NET library for working with devices via the Modbus protocol, as well as a Modbus client tool based on it.

## UModbus.Client library

Capabilities:

* Modbus full implementation. All standard functions of the Modbus protocol are implemented, as well as the ability to execute user requests (functions designed by the device manufacturer).

* Support for all transport level options for Modbus: RTU, ASCII, TCP, UDP.

* Keeping a log of data exchange with a remote device.

## UModbus client tool

Capabilities:

* Supported functions:

   * `FC01` - `READ_COIL_STATUS`        - reading one/several coils

   * `FC02` - `READ_DISCRETE_INPUTS`    - reading one/several inputs

   * `FC03` - `READ_HOLDING_REGISTERS`  - reading one/multiple holding registers

   * `FC04` - `READ_INPUT_REGISTERS`    - reading one/multiple input registers

   * `FC05` - `WRITE_SINGLE_COIL`       - writing value of one value coil

   * `FC16` - `WRITE_MULTIPLE_REGISTER` - writing values to multiple holding registers

   * `FCxx` - Device manufacturer-defined function with a code from the Modbus protocol user function range.

* Support for all major data types:

   * `Int16`

   * `Uint16`

   * `Int32`

   * `Uint32`

   * `Int64`

   * `Uint64`

   * `Float32` (float)

   * `Float64` (double)

* Selection of byte order for variables longer than a 16-bit word

* Save data-map to `*.json` file

* Load data-map from `*.json` file

* Logging

* Cycle read

* Search for a slave device on a common bus

![screnn](https://github.com/c-not-around/u-modbus/assets/173079314/38e7d232-2193-437c-8977-8b41932a3a47)