Shop

Artificial Intelligence Notice: ISA prohibits the entry of any ISA intellectual property (“ISA IP”), including standards, publications, training or other materials into any form of Artificial Intelligence (AI) tools, such as ChatGPT. Additionally, creating derivatives of ISA IP using AI is also prohibited without express written permission from ISA’s CEO. In the case of such use, ISA will suspend a licensee’s access to ISA IP, and further legal action will be considered. Please review ISA's policies for Use of AI Tools, Intellectual Property and Terms and Conditions for further information.

Important Notice: Print books are temporarily unavailable. As of 12 August 2025, print books are no longer available for purchase on isa.org, but beginning 1 January 2026, they will be available for purchase through our publishing partner, Wiley. Kindle and ePub formats are still available via the links on each book's product page on isa.org. Learn More.

Cancel
SM

ISA5.9, Controller Algorithms and Performance

See all ISA Standards
View list of standards committee members

Scope

The ISA5.9 WG will develop technical reports, recommended practices, and standards documenting the algorithms used in industrial control systems (e.g. PID controllers) and the measures of performance for these algorithms. The documents may include guidance on algorithm selection.

Purpose

The ISA5.9 WG serves to clarify the algorithms used in industrial control systems to aid in the selection and application of these algorithms to benefit manufacturing.

For more information, please contact:

Torry Bailey
ISA Standards Administrator
tbailey@isa.org
(919) 990-9257