THE Standard library for Modbus communication


Solutions for Industrial communication

A wide range of software and libraries for development of solutions using Modbus (EasyModbus), Ethernet/IP (EEIP-Library), OPC DA, OPC UA and Mqtt. All solutions are available for C# - JAVA and Python. Industry approved!!

Released under Open-Source License.

EasyModbus Open Source Software

EasyModbus Library for .NET

Fast and secure access from PC or Embedded Systems to many PLC-Systems and other components for industry automation.

Only a few lines of codes are needed to read or write data from or to a PLC.

The optional Modbus2Mqtt Bridge allows to publish values to a Mqtt-Broker.

Additional Software tools e.g. Modbus Server Simulator, makes software development fast and easy.

Modbus TCP, Modbus UDP and Modbus RTU client/server library for .NET can be downloaded from:

easymodbus library for java

Platform independent integration of Modbus protocol with the JAVA Library.
Same usage than .NET library

Modbus TCP, Modbus UDP client/server library for JAVA can be downloaded from: easymodbustcp-udp-java/

Easymodbus library for Python

Python implementation of EasyModbus library.

Platform independent integration of Modbus protocol.


EasyModbusTCP Library is already used and proved in various industries. Some applications using EasyModbusTCP:

Barcode Scanner Application
IoT / Industry 4.0
Data storage of PLC-data in SQL-Database
Custom made Scada applications
Energy data acquisition

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