Updates to FOUNDATION Spec Allow for Easier Device Replacement
The Fieldbus Foundation today announced the latest updates to its open, non-proprietary FOUNDATION fieldbus specifications. These updates help automate device replacement and enable backwards compatibility among different revisions of FOUNDATION devices used in plant automation systems. End users will benefit from greater predictability in fieldbus implementation, while reducing integration risks and eliminating manual intervention for device configuration.
The most significant updates to the Foundation technical specifications are a revised series of function block and transducer block profiles, as well as requirements for H1 (31.25 kbit/s) device replacement that are now part of the Fieldbus Foundation’s device registration process. This enhancement enables the H1 interoperability test kit to verify consistent behavior between device and host implementations in fieldbus-based control systems.
Automation of device replacement allows the configuration in an existing field device to be restored in a newer version of that instrument without manual intervention. This ‘plug and play’ solution ensures features are consistent between different generations of devices without reengineering the host configuration or changing any other element of the H1 network other than the new instrument.
In addition to device replacement, the specification update provides improved positioner profile in fieldbus devices. This technology supports organization and integration of advanced device diagnostics within fieldbus systems. It provides standard definitions for positioner transducer blocks and includes parameter structure definitions for better data organization with fieldbus devices, including partial/full stroke test (PST/FST) of valves.
For more information, please visit the Technical Specifications page of the Fieldbus Foundation’s website at http://www.fieldbus.org. You may also view the Spec Index for a full list of specifications included in the Foundation Technical Specifications package.