VortexMaster FSV400 and SwirlMaster FSS400 HART Interface Specification

This document is the official HART interface specification for ABB's VortexMaster FSV400 and SwirlMaster FSS400 vortex and swirl flowmeters, covering models FSV430, FSV450, FSS430, and FSS450. It details device identification, product interfaces, HART commands (universal, common-practice, and device-specific), device variables, status information, and performance characteristics for liquid, gas, and steam measurement applications.