LabVIEW CANopen client library
Building automation (like KNX or OpenHAB) software (like CometVisu).
instrument control, data acquisition display and analysis
A python based User Interface library.
Fast CGI-based AsteriskPBX cluster administration tool.
Open source, web based, SCADA system written in PHP/Javascript & Java
Open Source Hardware For Industrial Automation
openSCADA® is an open source SCADA system written in JAVA
IP Thermostat Managment Tool