This indicates detection of the PROFINET CBA ICBAAccoMgt2 command.
PROFINET is the standard for industrial networking in automation. PROFINET IO primarily deals with Programmable Controller data exchange while PROFINET CBA deals with distributed automation systems. PROFINET IO uses cyclic data transfer to exchange data over Ethernet. PROFINET CBA provides a DCOM-based system for organizing automation systems to exchange data between interfaces of the automation components.