ISA-101Overview

Operator Interfaces Have Changed

• Large amounts of process data

• Ineffective displays

• Inappropriate use of graphics

Information Overload

Split Second Decisions

Split Second Decisions

Now Try Operating a Plant the Same Way!

Is This a Good Operator Interface?

BP Amoco, Texas City (2005)

ISA 101 Committee

Committee formed in 2006 to establish standards, recommended practices, and/or technical reports for designing, implementing, using, and/or managing human machine interfaces in process automation applications

ANSI/ISA-101.01-2015 Human Machine Interfaces for Process Automation Systems• Approved July 9, 2015

Over 300 Voting Members • Integrator, Engineering & Construction 35%• End User 27%• Vendor/Supplier 25%• General (Academic, Government, Consultant etc.) 13%

• Worldwide participation in review process

The Purpose of ISA 101

Address the design, implementation, and maintenance of human machine interfaces (HMIs) for process automation systems, to:

• Provide guidance to design, build, and maintain HMIs which result in more effective and efficient control of the process, in both normal and abnormal situations

• Improve the user’s abilities to detect, diagnose, and properly respond to abnormal situations

• Look at the HMI holistically – not just the display

Standards are the “What”Technical Reports and Recommended Practices are the “How”

Who Cares About HMI Standards

Users• Responsible for safe and productive operation of equipment and facility• Live with the HMI and support it for it’s lifetime

Integrators, Designers, Engineers• Design and build the HMI applications • Commission the HMI, and the associated process

Suppliers• Develop the software and hardware needed to build the HMI• Develop the interfaces/drivers needed for an HMI to transfer data and information

to and from multiple sources

ISA 101 Working Groups

WG1 - HMI Philosophy & Style Guide Development• This technical report will describe example applications of the Philosophy and Style Guide to

various Process Automation Systems use cases, and will be platform independent (41 members)• Co-chairs; David Lee and Lothar Lang

WG2 – HMI Usability and Performance• This technical report(s) will be used to assess the effectiveness of the HMI application, and how

the use of the standard will assist in improving related metrics (29 members)• Co-chairs; David Board and Ruth Schiedermayer

WG3 – HMI for Mobile Devices• Develop technical report(s) to evaluate and define the use of mobile devices as HMI stations and

how to effectively implement an HMI for use on a mobile device (21 members)• Co-chairs; Mark Nixon and Peder Brandt

WG4 – HMI for On-Machine Applications• Develop technical report(s) to effectively implement a machine-level HMI utilizing an operator

interface terminal• Co-chairs; Arlen Jacobs and David Board

ISA TR101.02 Content

1 – Scope2 – References3 – Definition of terms and acronyms4 – HMI usability and performance 5 – Usability6 – Performance7 – HMI EffectivenessAnnex A (Informative) – HMI effectiveness measurementsAnnex B (Informative) – A case study of effective HMI design for increasing usability

Level 1 Display – Overview of the operator’s entire span of control

Level 2 Display – Primary operating display during normal operations

Level 3 Display – Process diagnostics and task execution support

Level 4 Display – Diagnostic, informational displays, and faceplates