predictive maintenance - PLC Programming & Automation

PLC Predictive Maintenance: Vibration, Current, Hours

September 13, 2026January 30, 2024 by PLC

Timing chart of condition monitoring sampling: the machine starts, a warm-up delay blocks sampling, one-second sample pulses run only while warmed up, and the level 1 alert sets after the average crosses the limit

Build PLC predictive maintenance on hardware you own: vibration and motor current inputs, runtime hours, moving averages, baselines and alarm levels.

Machine Learning PLC Integration: Where the Model Runs and What the Controller Owns

September 13, 2026January 20, 2024 by PLC

Ladder rung with ML_Valid examined on, ML_Stale examined off and Score_Hi examined on in series, driving the ML_Advisory output coil

The PLC does not run the model. What to publish, how the score returns as an advisory tag with a watchdog, and a pump anomaly detector on CompactLogix.