FOUNDATION FOR INFORMATION-DRIVEN SYSTEMS
FOUNDATION™ Fieldbus H1 technology is designed specifically for field-level interface and device integration within the process plant environment. It is the foundation upon which Information-driven systems offering increased connectivity, real-time data, and advanced analytics can deliver better performance and enhance competitive advantages—not only in the plant, but across the enterprise and out to its value chain.
FOUNDATION Fieldbus H1 is an interoperable, bi-directional, digital, serial, publisher-subscriber communications network, which is suitable for use in hazardous and potentially explosive areas (Ex zones 0 and 1), as well as intrinsic safety (IS) applications. Each H1 segment supports a length of 1,900 meters and connects up to 32 field devices, depending on the individual environment. These limits can be extended using bridges.
There are several possible network topologies in FOUNDATION H1, such as point-to-point, bus with spurs, daisy chain, tree or mixed (a combination of all supported topologies). The trunk is the main communication pathway between devices and is typically the power supply for spurs on the segment.
The H1 solution enables field instruments and other devices to execute control functions, thus reducing the load on plant computers and workstations. Since the H1 network is digital, I/O conversion subsystems are eliminated.
The FieldComm Group tests and registers FOUNDATION Fieldbus (H1 & HSE) devices to ensure interoperability of registered products from multiple vendors. This enables the end user to select the best instruments for the application regardless of the host system supplier.