Considerations and benefits of SCADA system

Typical considerations when putting a SCADA system together are:
• Overall control requirements
• Sequence logic
• Analog loop control
• Ratio and number of analog to digital points
• Speed of control and data acquisition
• Master/operator control stations
• Type of displays required
• Historical archiving requirements
• System consideration
• Reliability/availability
• Speed of communications/update time/system scan rates
• System redundancy
• Expansion capability
• Application software and modeling

Obviously, a SCADA system’s initial cost has to be justified. A few typical reasons for
implementing a SCADA system are:
• Improved operation of the plant or process resulting in savings due to optimization of the system
• Increased productivity of the personnel
• Improved safety of the system due to better information and improved control
• Protection of the plant equipment
• Safeguarding the environment from a failure of the system
• Improved energy savings due to optimization of the plant
• Improved and quicker receipt of data so that clients can be invoiced more quickly and accurately
• Government regulations for safety and metering of gas (for royalties & tax etc)