Flexible an d Smar t Online Monitoring an d Fault DiagnosisSy s tem f o r Rot a ting M achineryAbstract Monitoring the vibration signals of rotating machinery, ulteriorly, assessing the safety of equipment plays a significant role in ensuring the security of equipment and in saving maintenance fee、 This paper integrated the idea of “configuration” in the industry control software, developed the “flexible” network-based online monitoring and fault diagnosis system 、The network topology, configuration module, database, data acquisition workstation an dmonitoring ponents were presented 、With the smart data acquisition strategy and strong adaptive monitoring tools, the system can be applied o nkinds of rotating machinery, and the practical application of the system was introduced、Keywords – on