IEC 60870-5-104 protocol tester.
A python based control system
LabVIEW CANopen client library
Building automation (like KNX or OpenHAB) software (like CometVisu).
A python based User Interface library.
Emulate MODBUS industrial network with devices.
Enhanced Modbus library implemented in the Java programming language
Open Source Hardware For Industrial Automation
openSCADA® is an open source SCADA system written in JAVA
The EPANET Real Time Extension
OPC UA communication stack written in python