ABSTRACT
SCADA (Supervisory Control and Data Acquisition), data acquisition and monitoring system are the important components of the industrial control system. Through the HMI interactive and data acquisition and transmission system, SCADA real-time monitoring to the scene of field equipment, so as to realize the function such as field device control, parameter adjustment and measurement [1]. Due to the SCADA system from birth to now, is considered a closed system, almost no consideration a vulnerability. The application of EtherNet, Fieldbus, OPC technology makes the industrial equipment interface more open and enterprise information in SCADA system is no longer isolated. SCADA system is vulnerable to hackers.
