AiVibeHigh-Performance HMI (ISA-101)
A high-performance HMI is an operator display philosophy that uses restrained colour, clear hierarchy and contextual information so that abnormal conditions stand out; ANSI/ISA-101.01 standardises the approach for process automation.
High-performance HMI design replaces detailed, colourful equipment pictures with mostly grey, low-contrast graphics in which colour is reserved for abnormal states and alarms. Values are shown with context, for example analogue bar indicators marking normal and alarm ranges, and trends show the direction of change rather than isolated numbers. Displays are arranged in a hierarchy from plant-wide overviews down to unit, equipment and diagnostic detail.
The approach grew from human-factors research and industry work on abnormal situation management, including that of the ASM Consortium, and from incidents in which operators were overwhelmed by poorly designed displays. ANSI/ISA-101.01 sets out a life cycle covering HMI philosophy, style guides, design, implementation and maintenance in process automation. It is widely applied in refining, chemicals, power and pharmaceuticals, and the same principles are used in discrete manufacturing.
Migrating to high-performance graphics involves an HMI philosophy document, a style guide, operator involvement and training, since experienced staff may initially prefer familiar screens. Effectiveness is judged by how well operators recognise and handle abnormal situations rather than by visual appeal. Alarm rationalisation under ISA-18.2 is usually carried out alongside HMI redesign.
Key points
- Mostly grey graphics; colour is reserved for abnormal conditions
- Values are shown in context with normal and alarm ranges and trends
- Display hierarchy runs from plant overview to diagnostic detail
- ANSI/ISA-101.01 defines an HMI life cycle for process automation
- Often delivered together with ISA-18.2 alarm rationalisation
Where AiVibe comes in
AiVibe designs and manufactures the AiAmbA AI Factory, whose edge devices and AI agents let people talk to PLC, CNC and robot controllers in plain language. Agents only propose changes, a trained operator confirms each one, and the AI Factory never replaces a machine's control or safety systems.