These points fall into two groups. A SCADA point can be classified as a "hard" point or a "soft" point. Hard points denote actual inputs or outputs joined to the SCADA system. A soft point represents results from math and logic actions. For example, you might want an alarm when the generator is off AND power is off.
A system will normally store SCADA point values as a combo of two things. It will store the value and a NOW timestamp. When looking at logs, network staff can then view a log of that individual point.
Looking at a SCADA point log can be helpful to staff when monitoring their network in great detail. These SCADA point logs can alert staff when they may be experiencing a recurring problem. This might be with only a single input or output device. This alert allows them to make the needed changes to keep their network working at maximum efficiency.
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