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The Fieldbus Foundation has released a major revision to its AG-181 System Engineering Guidelines for the process automation industry. AG-181 is a comprehensive guide that includes best practices and recommendations for a complete FOUNDATION fieldbus installation, from engineering and design through commissioning, startup, operations, and maintenance. The guide includes recommendations on topics from selecting cable to wiring installation, grounding, implementing plant asset management systems, and best practices for project management.

The Fieldbus Foundation says the new edition of AG-181 has been reformatted and reorganized to make it easier to read and access information. Some content has been rewritten to include more up-to-date information. This includes sections covering the Fieldbus Intrinsically Safe Concept (FISCO) fieldbus design rules, cable length, surge protection, and segment scheduling. A section on the use of existing wiring has also been added.

The Fieldbus Foundation says the System Engineering Guidelines is for process control engineers, system integrators, engineering firms and other end-users involved in the implementation of FOUNDATION fieldbus.

The FOUNDATION fieldbus System Engineering Guidelines is separated into 11 sections, each covering different aspects of the fieldbus project lifecycle. Specific topics include: General Considerations, Fieldbus Definitions, Fieldbus Project Requirements, Host System Requirements, Software Configuration, Field Device Requirements, Segment Components, Network/Segment Design Guidelines, Site Installation Guidelines, Acceptance Testing, and Documentation Requirements.

To obtain the FOUNDATION fieldbus System Engineering Guidelines (Document Reference No. AG-181), visit the Fieldbus Foundation”s Technical References page under the End User Resources section on The document can be downloaded in PDF format.