The following tables list the properties of the standard MOBBus communication classes. There are specific calculation methods: CalculatedValue = ((FunctionResult and Mask) * ScaleFunction * Multiplier) - Offset CalculatedValue = ((FunctionResult and Mask) * ScaleFunction) - Offset CalculatedValue = (FunctionResult * ScaleFunction * Multiplier) - Offset In case there is no Scaling value then ScaleFunction=1. If Mask=0 there is no masking. In case Threshold is enabled (ThresholdEnabled=True), the function will result a conversion error if the Calculated Value is higher or lower than the threshold. In case Measurement Error is enabled (MeasureErrorEnabled=1), then if the FunctionResult equals with the error value (FunctionResult= Error Value) it will return with a conversion error. In case there is an Error Change Value given, then the it will be used in the calculation and will not return with an error. (Measure ErrorChange Enabled = True, Error Value = value to change) Depending on which calculation method the Data Type utilizes (in the table below), the name of the Data Type is colored according to the calculation method table above.
PF Quad calculation Example: Register value = 0.999: Apparent power is in quadrant 1, current (I) is lagging, and active energy is imported to the customer load with a lagging power factor of 0.999. Register value = -1.1: Apparent power is in quadrant 2, current (I) is lagging, and active energy is exported by the customer load with a leading power factor of -0.9 (PF = (-2) - (-1.1)). Register value = -0.986: Apparent power is in quadrant 3, current (I) is leading, and active energy is exported by the customer load with a lagging power factor of 0.986. Register value = 1.14: Apparent power is quadrant 4, current (I) is leading, and active energy is imported to the customer with a leading power factor of 0.86 (PF = 2 - 1.14).
