Functional Safety Controller "vCOSS S-zero"
Hitachi-GE intends to incorporate the “vCOSS S-zero” as the functional safety controller for the nuclear facilities it provides to Horizon Nuclear Power, for their projects in the UK. In addition, because there are few programmable functional safety controllers available in the world whose design and development processes are recognized to comply with SIL 4(1) requirements, Hitachi seeks to expand the application to areas such as chemical plants and turbines for thermal power generation where a high level of safety and reliability is required. (1) SIL 3, SIL 4: In IEC 61508 series functional safety standard, four Safety Integrity Levels (1 to 4) are defined as indicators of the safety performance in a system. SIL 4 is the highest level. (2) SL 1: In IEC 62443-4 series cyber security standard for plant control systems, four Security Levels (1 to 4) are defined according to the degree of resistance to attacks. SL 1 indicates that a system can withstand unintentional attacks. Generally, controllers and safety protection devices alone can achieve up to SL 1. (3) International Electrotechnical Commission: It is an organization that prepares and endeavors to spread international standards for electric and electronic technology for the further promotion of global economic growth and international trade. (4) Floating point arithmetic calculation: An arithmetic calculation method for computers. As a computer has a fixed data size for each data type, part of a calculation result that exceeds the predefined number of digits cannot be expressed. The floating point arithmetic calculation method is used to handle a wider range of numbers. Source / Further information : Hitachi-GE Nuclear Energy, Ltd. Oil and Gas News Undiluted !!! “The squeaky wheel gets the oil” Follow us: @OilAndGasPress on Twitter | OilAndGasPress on Facebook ]]>