OpenICS builds data dictionaries, rather than signatures, from the packets it captures in order to help business leaders make security decisions. It currently supports three widely used ICS protocols: MODBUS; DNP3; and EIP/CIP. The project is sponsored by EnergySec, short for Energy Sector Security Consortium. OpenICS hopes to help bridge the gap between security-aware engineers and business operators in critical infrastructure operations. It was released to GitHub recently and is a library that decodes sniffed network traffic.
Source: https://threatpost.com/openics-decodes-control-system-traffic-builds-data-dictionaries/105577/