Event‑logging is een begrip binnen de industriële digitalisering en data‑collectie & industrial data platforms.
Definitie
Event-logging is het systematisch vastleggen van discrete gebeurtenissen, state-changes, alarmen en operationele activiteiten binnen industriële systemen. Deze gebeurtenissen worden gestructureerd opgeslagen met timestamps, context-informatie en metadata voor troubleshooting, audit trails, performance analysis en compliance documentation.
Kenmerken
- Timestamped events: Precise time recording (millisecond accuracy) voor event sequencing
- Structured logging: Consistent event formats met type, severity, source, description fields
- Multi-level categorization: Info, Warning, Error, Critical severity levels
- Contextual metadata: Machine ID, operator, product batch, process recipe information
- Automated triggering: System-driven logging bij threshold violations, state changes
- Audit trail compliance: Tamper-proof logging voor regulatory requirements
- Real-time streaming: Immediate event propagation naar monitoring systems
- Retention policies: Configurable data lifecycle management voor long-term storage
Toepassing
Machine operation logging:
- CNC machine events: Program start/stop, tool changes, alarm conditions, cycle completions
- Robot operation: Task execution, error recoveries, safety stops, maintenance triggers
- Process equipment: Start/stop sequences, parameter changes, fault conditions
- Material handling: Product movements, jam detections, conveyor speed changes
Quality events:
- Inspection results: Pass/fail decisions, measurement out-of-tolerance events
- Calibration activities: Instrument calibrations, standard references, drift detections
- Non-conformance: Defect identifications, root cause assignments, corrective actions
- First Article approvals: New setup validations, specification verifications
Production milestones:
- Batch processing: Recipe starts, ingredient additions, process completions
- Order fulfillment: Job starts, milestone completions, delivery preparations
- Shift activities: Operator changes, production handovers, daily summaries
- Maintenance windows: Scheduled maintenance starts, completion verifications
Safety en compliance:
- Personnel access: Badge entries, zone permissions, safety training verifications
- Environmental monitoring: Temperature excursions, contamination detections
- Equipment safety: Emergency stops, guard openings, safety system activations
- Regulatory compliance: FDA 21 CFR Part 11, ISO audit trail requirements
Gerelateerde begrippen
Verwante termen:
- Historian database - Long-term event storage en retrieval systems
- Realtime monitoring - Live event streaming en alerting
- Audit management - Compliance-driven event documentation
- Machine datalogging - Equipment-specific event capture
Verwante concepten:
- Event-gedreven architectuur - System design paradigm using events
- Sub messaging - Event distribution mechanisms
- Unified Namespace - Modern event streaming architectures
- Observability - System monitoring via comprehensive event logging
Bronnen
- Syslog RFC 3164/5424 - Standard protocols voor network event logging
- Windows Event Logging - Microsoft industrial PC event management
- Splunk Industrial - Machine data platform voor event analysis
- Elastic Stack (ELK) - Elasticsearch, Logstash, Kibana voor log aggregation
- Fluentd - Open source data collector voor unified logging layer
- Apache Kafka - Distributed event streaming platform
- InfluxDB - Time series database voor event en metrics storage
- IEC 61850 - Communication protocol voor power system event logging
- ISA-18.2 - Management of alarm systems in process industries
- 21 CFR Part 11 - FDA electronic records en electronic signatures compliance
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