Abstract:  In this paper, Siemens S7‑1500/1200 PLCs are used to build a remote diagnostic testing system for intermittent faults. The WEB server functionality of the PLC is employed to achieve diagnosis and remote monitoring of short‑term intermittent faults in modern intelligent manufacturing control systems. The system enables on‑site engineering technicians to remotely monitor the overall status of electromechanical equipment faults via the Internet, and to conveniently receive the remote push notifications of fault information and view detailed fault data using a mobile phone or tablet.

Key words: ｉｎｔｅｌｌｉｇｅｎｔｍａｎｕｆａｃｔｕｒｉｎｇ, ｆａｕｌｔｄｉａｇｎｏｓｉｓ, ｒｅｍｏｔｅｍｏｎｉｔｏｒｉｎｇ, ＰＲＯＦＩＮＥＴ