Pre-migration dependency baseline
Establish what a control system exchanges information with before its replacement is scoped.
Markets › Process manufacturing › Refining and Petrochemical Operations
The largest migrations, on the least forgiving estate.
Process units interact through utilities and intermediate streams that no single system records completely, while control estates move through multi-year replacement programs.
01 · OPERATING CONDITIONS
Refining and petrochemical operations carry among the highest downtime and safety consequences in industry. Units are interdependent through headers, intermediate streams, and shared utilities that cross the boundaries of any one control system.
Control estates are moving through migration programs that replace equipment installed over decades, unit by unit, while the site continues to operate.
02 · THE DEPENDENCY PROBLEM
A migration is scoped from the system being replaced. The risk lives in what that system is connected to, including interfaces added over the years to coordinate units that were originally engineered separately.
Where those interfaces are undocumented, the migration plan is complete on paper and incomplete in the plant.
03 · WHAT NEUROPATH ESTABLISHES
An account of the operation as it is running.
Equipment in operationThe devices communicating on the production network, including equipment no current record accounts for.
Communication relationshipsWhich systems exchange information with which, and in what direction.
Timing patternsThe intervals and sequences that characterize normal operation for a given cell, line, or unit.
Operational dependenciesThe working relationships that determine what is affected when one system changes.
04 · PRIORITY USE CASES
Three questions this answers first.
Unit interaction account
Examine the observed relationships between adjacent units and the utilities they share.
Turnaround planning evidence
Review the equipment and communication relationships within the intended turnaround boundary.
05 · DEPLOYMENT CONSTRAINTS
Built for the constraints, not adapted to them.
No software on control equipmentNo external connectivity requiredNo inbound path to controlOperates within the plant boundaryContinues through loss of connectivity
Observation is passive. NeuroPath reads communications already present on the network and does not introduce traffic to the equipment it observes.
06 · FIRST ASSESSMENT
One system. One boundary. One written result.
A first engagement establishes a dependency baseline around one process unit before a control system migration or turnaround, delivered for review by the site's process control engineering group.
Scope expands only when the operating question and the observed coverage justify the additional context.
NEXT STEP
Establish what one system depends on, before the next change is scheduled.
Scope an operational dependency assessment ↗All markets
Review the other operating environments.
Read more ↗DEPLOYMENTReview the plant boundary
Examine the contained deployment model.
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