The RollingAvgAlarmExt is located in the VYKON Pro palette in the alarm sub folder. The extension provides unique alarm functionality for both RollingAvg and RollingAvgMaster components based on both the out and maximum deviation slot values.
The extension uses a standard out of range fault algorithm which functions on the out slot value. If desired this algorithm should be configured based on the input hardware. For example, a short circuit and an open circuit might correspond to -50 and +250 values. The fault status signifies a hardware failure as opposed to an operational limit.
If utilized with a RollingAvg component this may result in the out value being ignored by a RollingAvgMaster.
The offnormal algorithm uses a Max Deviation Algorithm which which funcions on the maximum deviation slot value. The devisation is calculated as an absolute value and is compared to the Deviation Limit and Deadband to determine the alarm state.