The ABB Product Data Registration feature traces composition changes in the protection relay's SW or HW. Traceability allows better support and maintenance possibilities.
After a composition change, an LCT indication is seen on the LHMI at the protection relay startup. The PCM600 reads the changed data from the protection relay. Therefore a connection to the protection relay must be established first. Composition data can be read with PCM600 by enabling LCT during PCM600 installation and activating collection in PCM600 from 'Lifecycle Handling' menu. For detailed information see PCM600 online help.
The LCT indication is cleared in the same way as other indications. If composition data is not collected with PCM600, the indication reappears after protection relay's reboot.
The number of composition changes can be seen from the Composition changes parameter in .