More load than a shift can absorb
The alarm rate per operator exceeds the ISA-18.2 recommended limit, and the shift starts acknowledging without analyzing.
Alarm management
LAM
Alarms that guide the operator's action instead of competing for attention
LAM structures alarm management in line with ISA-18.2: it measures the operator's actual alarm load, exposes the alarms that consume the most attention and turns your system history into a rationalization plan with defined priorities.
Aligned with ISA-18.2, IEC 62682 and EEMUA 191 best practices
The problem
When everything is an alarm, nothing is an alarm
In plants with a long history of expansions, the alarm system grows without review. The consequence shows up on shift: too many events, constant repetition and loss of trust in the information.
A few sources generate most of the events
Repeating and chattering alarms concentrate the volume and hide the events that genuinely require intervention.
Priorities that do not differentiate
When almost every alarm is high priority, the classification no longer helps decide what to respond to first.
No record of what was decided
Rationalization happens informally, with no traceability of who changed what, when and on what grounds.
The contrast
From an event console to a performance view
Without alarm management
- A continuous event list with no trend reading
- Volume gauged by perception rather than by indicators
- Chattering alarms handled case by case
- Rationalization without documented criteria
- ISA-18.2 adherence hard to demonstrate
With LAM
- Load indicators per operator and per shift
- Ranking of the sources that generate the most events
- Automatic detection of repetition and chattering
- A rationalization plan with priority and owner
- Documented evidence of ISA-18.2 adherence
Maturity
Alarm Management Pyramid
Conceptual reading of alarm management maturity stages. The highlight follows the simulation state as a contextual visual indicator, not as a normative classification.
Overloaded
The operator receives more alarms than can be interpreted and acknowledgement becomes mechanical.
Characteristics
- Volume far above targets
- Frequent repetitive alarms
- Loss of trust in the system
To move forward
Measure real alarm behaviour and act on the few offenders that create most of the volume.
Interactive scenario
As alarms pile up, finding what really matters gets harder
Increase the alarm rate and experience how volume, repetition and avalanches affect the operator's ability to keep up. Measuring alarm system performance is essential to identify overload, recurring patterns and the events that consume the most attention.
Single control for the simulation: both views use the events generated here. Time is accelerated 60× for this demonstration.
6
alarm/h
Manageable
Event console
Unacknowledged: 0
- Waiting for events…
Alarms arriving as the operator receives them, with no analytical layer.
Illustrative scenario with simulated data representing different load conditions of an alarm system.
Related technical references: ANSI/ISA-18.2 – Management of Alarm Systems for the Process Industries · IEC 62682 – Management of Alarm Systems for the Process Industries · EEMUA 191 – Alarm Systems: A Guide to Design, Management and Procurement
Technical heritage
Two trajectories brought together in a single practice
LAM comes from combining field experience in industrial automation with software engineering applied to process data — trajectories built by RN Tecnologia and Logique Sistemas before they formed IDUS.
That combination is what makes it possible to treat alarms as an operational problem rather than a system setting: the same team understands the control logic, the process behavior and the data that supports the decision.
- ISA-18.2
- Industrial automation
- Process engineering
- Operational data analysis
Want to know the real alarm load of your operation?
The assessment uses the history of your own system to measure load per operator, identify the main sources and outline the rationalization plan.
Shall we talk about your operation?
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