Design Requirements for Best Effort Backbone IP Network
Process control systems for Hydrocarbon Process Automation Applications (HPAA) are implemented in oil and gas fields, plants, refineries, and tank farms in the form of a Local Area Network (LAN) to support control functions. These systems are composed of sensors, actuators, and logic solvers networked together to form a control system platform. Reliable networking plays a key role in supporting such a system infrastructure. The existing network designs consist of multiple, parallel networks with limited interconnectivity supporting different functions. The concept of consolidating HPPA networks on a converged Internet Protocol (IP) and utilize Wide Area Network (WAN) for real time operation was not explored in detail in the past.