| Feature | Plex (Rockwell) | Petasense |
|---|---|---|
| MES + Monitoring | ||
| PLC Integration Machine connectivity |
✓ Yes | — — |
| OEE Tracking Production effectiveness |
✓ Yes | — — |
| Open API Integration access |
✓ Yes | ✓ Yes |
| Vibration Monitoring Condition sensing |
◑ Via integration | ✓ Yes |
| Monitoring | ||
| Vibration Monitoring Wireless VM4 sensors |
◑ Via integration | ✓ Yes |
| Predictive Maintenance Asset reliability analytics |
— — | ✓ Yes |
| Open API Integration |
✓ Yes | ✓ Yes |
| Hardware Ownership Sensor model |
— — | ◑ Sensors purchased |
Plex is the right choice for mid-market discrete manufacturers wanting machine monitoring as part of a broader cloud MES/ERP investment — particularly in automotive supply chain environments where Plex has deep vertical expertise.
Petasense is the right choice for mid-market organizations wanting high-quality wireless vibration sensors with purchased hardware and strong cloud analytics. The calibration-first approach to data quality is a meaningful differentiator.