Apama Analytics Builder for Cumulocity IoT 10.5 | Apama Analytics Builder for Cumulocity IoT Documentation | Using Apama Analytics Builder for Cumulocity IoT | Understanding Models | Blocks | Processing blocks
 
Processing blocks
There are different types of processing blocks. They are grouped into different categories in the palette in the model editor, depending on their functionality.
This category
includes blocks that
Logic
perform logical operations on the data. Blocks such as AND and OR are in this category.
Calculation
perform mathematical operations on the data. Blocks such as Difference, Threshold, Direction Detection, Delta and Expression are in this category.
Aggregate
perform aggregation of the data over a window of values. Blocks such as Average (Mean) and Integral are in this category.
Flow Manipulation
manipulate the flow of the data. Blocks such as Time Delay, Gate, Pulse and Latch Values are in this category.
Utility
provide miscellaneous utility functions. Blocks such as Toggle and Missing Data are in this category.
Example of a processing block - the Threshold block
The following example shows what a block looks like in the model editor, together with the block parameter editor. It shows the Threshold block, which detects whether the input value breaches the threshold or whether it crosses the threshold.
The parameters are:
*Threshold Value. float type. This value is compared against the input value.
*Direction. The direction in which to look: whether the input value is above or below the defined threshold, or whether it crosses the threshold.
The input ports are:
*Value. float type. The input value to the block, to be compared against the defined threshold value.
*Reset. pulse type. When a signal is received, the state of the block is reset so that any previously received input values are no longer used.
The output ports are:
*Breached Threshold. boolean type. Is set to true when the threshold has been breached. That is, the input value is beyond the range of the defined threshold value.
*Within Threshold. boolean type. Is set to true when the threshold has not been breached. That is, the input value is within the range of the defined threshold value.
*Crossed Threshold. pulse type. Sends a signal when the input value crosses the threshold, going from one side of the threshold to the other.
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