Finding
Software-defined operations connect the factory's control, supervisory and business layers so production can be rescheduled and updated in software
Most factories run on layers that barely talk: PLC programs on the line, SCADA screens for operators, a manufacturing execution system (MES) for orders and quality, and ERP for business planning - the ISA-95 model. Software-defined industrial operations connect those layers with common data models and APIs, so a schedule change, a new recipe or a quality rule can flow from planning to machines without manual re-engineering.
Gigafactories and chip fabs push this furthest because they run continuous, data-heavy processes where small parameter changes affect yield. The building blocks are industrial Ethernet with TSN, OPC UA for machine data, edge servers that run analytics near the line, and digital twins for testing changes. Security has to rise with connectivity: linking OT networks to IT exposes plants that were once isolated.
Levels
ISA-95 levels
| Level | Systems | Software-defined change |
|---|---|---|
| 4 | ERP | Plans flow directly to MES |
| 3 | MES | Scheduling, quality rules in software |
| 2 | SCADA | Recipes and setpoints pushed centrally |
| 1 | PLCs, robot controllers | Versioned, updatable logic |
| 0 | Sensors, actuators | More sensing; edge analytics |
Sources
Sources and scope
- Scope
- Software-Defined Industrial Operations
- Sources
- ISA-95 (IEC 62264); OPC UA; ElectronsX
- Updated
- October 2026