ČSN EN 61227

This International Standard supplements IEC 60964 which applies to the design for control rooms of nuclear power plants. It identifies the Human-Machine Interface (HMI) requirements for discrete controls, multiplexed conventional systems, and soft control systems. For the main control room of a nuclear power plant, IEC 60964 includes general requirements for layout, user needs and verification and validation methods, and these aspects are not repeated in this standard. However, IEC 61772 on Visual Displays Unit (VDU) also provides some guidance on displays and indications where necessary for the correct application of the control requirements.