Updated FF SIF Specification and tools released

The Fieldbus Foundation has announced that updated device development solutions for its FOUNDATION Fieldbus for Safety Instrumented Functions (FF-SIF) technology are now available. The new release includes the FF-SIF Technical Specification, FOUNDATION for SIF Interoperability Test Kit (SIF ITK), and DD Library. These solutions support development of interoperable fieldbus devices intended for use in industrial plant SIF applications.

The FF-SIF protocol was approved by TÜV Anlagentechnik GmbH to meet the requirements of IEC 61508 up to, and including, Safety Integrity Level (SIL) 3.

FOUNDATION Fieldbus for Safety Instrumented Functions technology is now being specified for projects worldwide, with leading process industry companies such as Shell Project & Technology and Saudi Aramco already running successful FF-SIF pilot projects. These companies, along with other major end users, are encouraging the automation equipment industry to develop safety-approved products for their initial installations.

By implementing FF-SIF, process plants can achieve enhanced diagnostics through a fully integrated asset management system. They can also minimise the need for testing final control elements. This allows for early detection of dangerous device failures and reduces the incidence of spurious trips.

The latest FOUNDATION for SIF Technical Specification defines analog input (AI) blocks for fieldbus transmitters and other SIF devices. In addition, the FF-SIF Function Block Specification now addresses discrete output (DO) blocks, which is a major enhancement required for deployment of a complete fieldbus-based safety system. The updated specification package also includes the SIF Device ITK Profile, offering an easy way to map SIF field device requirements to existing SIF ITK versions.

The updated FF SIF ITK Version 1.1 includes a new, intuitive user interface, as well as additional test cases for testing SIF DO blocks and a variety of updates to existing test cases. The test kit is an excellent tool for troubleshooting and debugging devices, and provides all hardware and software required to ensure a manufacturer's complete device interoperability as specified by the Fieldbus Foundation's official registration testing procedure. By using the test kit, device developers can run tests identical to those used by the foundation before submitting their device for registration.

The interoperability test suite can be paired with an ITK automation tool designed to eliminate several manual intervention steps required when performing pre-registration testing of fieldbus devices. The tool improves ITK schedule efficiency and provides a direct reduction in the manhours needed to complete the testing phase. The SIF ITK is available with a maintenance agreement to keep the test suite software up to date with the latest enhancements.

The FOUNDATION DD Library includes standard Device Description Language (DDL) code for SIF blocks. With this DD subscription service, device developers have access to a template DDL making it easier and less time-consuming to develop DDs to the FOUNDATION fieldbus specification.

The latest FF-SIF specification release also includes a number of miscellaneous updates, mostly found in the validation process of the DO block, which reflect the maturity of the technology.

For more information about the FOUNDATION for SIF Technical Specification, please visit the Fieldbus Foundation's Specification Page. For details regarding the FF-SIF Interoperability Test Kit and DD Library, please visit the Tools Page or email sales@fieldbus.org.