CoriolisMaster FCX400 Firmware Update Notification

This document is a manufacturer notification from ABB detailing a firmware update for the CoriolisMaster FCX400 Coriolis mass flowmeter, changing from version 00.05.00 (02.2018) to version 01.05.01 (02.2020). The update includes minor bugfixes, LCD burn-in prevention, a dual frequency output option, and new Modbus registers and HART commands, with full backward compatibility confirmed.