PLC Technology!
Eclipse 4diac the open source solution for industrial automation
A free, fast and accurate routine to compute the position of the Sun
JQM - Java Quine McCluskey for minimization of Boolean functions.
PLC Data Logger
Pure Browser based Visualisation for PLCs
iHome Smart Home System Platform
32/64 bit multi-platform Ethernet S7 PLC communication suite
Free ladder & sequential (grafcet) languages used on automation PLC
Windows portable GUI program to store/manage IP settings.
Python module for network variables for CoDeSys PLCs
Export variables from a WAGO PLC to other HMI/SCADA applications
Communicating Vision PLC with Java - Linux server
Generating PLC programs from formal specifications
PLC-Logger and Analyzer
A wireshark dissector plugin for the IEEE 1905.1 protocol.
AS511 communication driver
openSCADA® is an open source SCADA system written in JAVA