PREDICTIVE MAINTENANCE SYSTEM

A predictive maintenance system for a plurality of machines is disclosed. The system includes vibration sensors connected to the machines and a plurality of data acquisition nodes, each node connected to one or more of the vibration sensors. Each node acquires vibration data from the sensors connected thereto during a respective data acquisition interval. A system control computer collects vibration data acquired by the nodes during a polling cycle which is based on the longest of the respective data acquisition cycles of the nodes.