Modbus slave simulator
The best library to work with .Net Assemblies in any programming lang.
Modbus TCP, Modbus UDP and Modbus RTU client/server Java library
Modbus TCP/UDP Server Simulator and Modbus RTU Slave Simulator
Port Access Library Package for Win32 on VB,Java and Visual C++
openSCADA® is an open source SCADA system written in JAVA
Java Persian Calendar library
Java library for X-Way and/or UNI-TE communication.