Integrator Backward Resettable Limited (Fixed-Point Blockset)

Perform discrete-time limited integration of a signal using the backward method, with external Boolean reset

Library

Calculus

Description

The Integrator Backward Resettable Limited block performs a discrete-time integration of a signal using the backward method.

The block can reset its state based on an external reset signal R. When the cumulative sum reaches one of the limits given by the Upper limit and Lower limit parameters, the sum saturates to that limit.

When the reset signal R is false, the block multiplies the input by the weighted sample time and adds the result to the cumulative sum since time zero.

When the reset signal R is true, the block outputs the Initial condition for previous output parameter.

Remarks

The output of the Integrator Backward Resettable Limited block differs from the output of the Integrator Forward Resettable Limited block only by the first and last terms in the cumulative sum.

Parameters and Dialog Box

Gain value: Specify the weight by which the sample time is multiplied.
Initial condition for previous output: Set the initial condition for the previous output.
Upper limit: The upper limit for saturation of the cumulative sum.
Lower limit: The lower limit for saturation of the cumulative sum.
Output data type and scaling: The options are:; When Specify via dialog is selected, you can specify the Output data type and Output scaling parameters.
Round toward: Rounding mode for the fixed-point output.
Saturate to max or min when overflows occur: If selected, fixed-point overflows saturate.

Characteristics

Input Ports
Any data type supported by the blockset

Output Port
Same as the input

Direct Feedthrough
Yes, of the input and reset source ports

Scalar Expansion
Of inputs and gain

Input Ports	Any data type supported by the blockset
Output Port	Same as the input
Direct Feedthrough	Yes, of the input and reset source ports
Scalar Expansion	Of inputs and gain

Integrator Backward Resettable Integrator Forward