Architecture

How this factory stays connected

One PREKIT hub and 10 area nodes link 78 machines over Modbus TCP, S7, and OPC UA into one Colca namespace, alongside the ERP. Production context — orders, recipes, quality checks — survives every handoff from planning to dispatch instead of vanishing every time a bar moves to the next step.

PREKIT Hub & Area Nodes

Inspect the system topology

Machines, events, and business context meet here in one namespace so the factory remains visible beyond any single dashboard or application.

ERPNext

Open the ERP order context

Orders, recipes, planning state, and customer commitments originate here before they continue onto the shopfloor as live production.

Supporting Infrastructure

Other Systems

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Colca — Open-source MQTT data layer — the Unified Namespace every machine signal flows through
dataops — Derives machine state and OEE (availability, performance, quality) per machine from the live stream
Keycloak — Authentication and role-based access control across all factory systems
Smallstep CA — Private certificate authority for service-to-service trust
Prometheus — Fleet monitoring and alerting across all PREKIT nodes
VPN — Secure remote maintenance access and PLC updates