Yokogawa Electric Corporation released an upgraded version of its STARDOM network-based control system that provides a number of functional enhancements. The added enhancements improve STARDOM's competitiveness in the oil, natural gas, petrochemical and other energy and raw-material markets. Key features of the enhancements are an improved communication function for controlling widely distributed production facilities and the capability to enhance control-system reliability by using STARDOM in combination with other control devices in a large plant. STARDOM is an open network-based control system comprised of function-specific control, operation and monitoring components that can be interconnected flexibly and on a scaleable basis using network technology.