Preventive maintenance system of industrial machine

A preventive maintenance system for an industrial machine, comprising:

• an information transmission unit for connecting a LAN on a user side and a LAN on a manufacturer side through at least one of a wired and wireless communication line;
• a monitor unit connected to said LAN on the user side for monitoring an operation condition of said industrial machine with respect to predetermined items;
• an information transmission/reception unit connected to said LAN on the user side for transmitting monitor information obtained by said monitor unit to said LAN on the manufacturer side through said information transmission unit, and for receiving information from said LAN on the manufacturer side through said information transmission unit;
• a supervisory unit connected to said LAN on the manufacturer side for receiving said monitor information transmitted from said information transmission/reception unit, and for automatically diagnosing a fault based on said monitor information and automatically supervising said industrial machine;
• and
• a preventive maintenance information transmission unit for automatically transmitting preventive maintenance information to said information transmission/reception unit on the user side through said information transmission unit when maintenance is determined to be necessary based on a diagnosis result of said supervisory unit.