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data types (all AI objects use floating point data points). The resolution of the accumulated values
decreases as the value grows larger over time and more of the significant digits precede the
decimal point. If the size of the value limits the resolution unacceptably, read and store the
current value offline and reset the accumulators to restore finer resolution.
NNoottee:: As a best practice, verify the Reliabilty property for a No_Fault_Detected status before
reading the Present_Value. If the line voltage or input frequency of the system being
monitored falls out of the supported range, the corresponding alert bits (BI1-BI7) are set
and the reliability property of any values that cannot be accurately measured under those
conditions returns Unreliable_Other.
Figure 12. Analog Inputs (AI)
BBAACCnneett PPrrooggrraammmmiinngg
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