IEC 62453 series - Field device tool (FDT) interface specification Updated at: 03-02-2021 Show more information ICT performance characteristics Interoperability (ICT) Industrial Reference ICT Architectures Reference Architectural Model Industrie 4.0 (RAMI 4.0) RAMI 4.0 Vertical Axis and associated standards Information Layer (RAMI 4.0) IEC 62453 series - Field device tool (FDT) interface specification