Utilizing multi-language international software standards for distributed process control

All distributed control systems to date have relied on proprietary software languages to implement distributed process control. These range from easy-to-understand function blocks and boolean logic algorithms to more complex text language construct. Standard programming languages with custom extensions for real-time control also have been available. International standards from the IEC now are available to allow multi-language, graphical, and real-time implementation. The paper will present these languages along with a modern presentation technique to show the overall flexibility and benefits of international language standards applied to process control.