The SCADA twelve golden rules

• Apply the ‘KISS’ principle and ensure that the implementation of the SCADA system is simple.

• Ensure that the response times of the total system (including the future expansion) are within the correct levels (typically less than one-second operator response time).

• Evaluate redundancy requirements carefully and assess the impact of failure of any component of the system on the total system.

• Apply the open systems approach to hardware selected and protocols communication standards implemented. Confirm that these are indeed TRUE open standards.

• Ensure that the whole system including the individual components provide a scaleable architecture (which can expand with increasing system requirements).

• Assess the total system from the point of view of the maximum traffic loading on the RTU, communication links and master stations and the subsequent impact on hardware, firmware and software subsystems.

• Ensure that the functional specification for the system is clearly defined as far as number of points are concerned, response rates and functionality required of the system.

• Perform a thorough testing of the system and confirm accuracy of all data transferred back, control actions and failure of individual components of system and recovery from failures.

• Confirm operators of individual components of the system in the (industrial) environment to which they would be exposed (including grounding and isolation of the system).

• Ensure that all configuration and testing activities are well documented.

• Ensure that the operational staffs are involved with the configuration and implementation of the system and they receive thorough training on the system.

• Finally, although the temptation is there with a sophisticated system, do not overwhelm the operator with alarm and operational data and crowded operator screens. Keep the information of loading to the operator clear, concise and simple.