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Iterator Subsystems

Configure subsystems for repeated execution

An iterator subsystem runs one or more times at the current time step when enabled by a control block. A control block implements control logic similar to that expressed by programming language loop constructs such as while or for.

  • Use a While Iterator Subsystem block to repeat execution of an algorithm as long as a logical condition is true.

  • Use a For Iterator Subsystem block to repeat execution of an algorithm until an iteration variable exceeds a specified iteration limit.

  • Use a For Each Subsystem block to apply an algorithm to individual elements or subarrays of input signals or mask parameters.

Note

Each block inside a For Each subsystem that has states maintains a separate set of states for each element or subarray processed by the subsystem. By contrast, blocks inside While Iterator and For Iterator subsystems use the same states throughout successive iterations of the subsystem.

Blocks

While Iterator Subsystem Repeat subsystem execution during simulation time step while logical expression is true
For Iterator Subsystem Repeat subsystem execution during simulation time step for specified number of iterations
For Each SubsystemApply algorithm to individual elements or subarrays of input signals or mask parameters

Topics

Iterate Subsystem Execution with While Iterator and For Iterator Subsystems

Execute subsystem multiple times during time step in response to control block.

Repeat an Algorithm Using a For Each Subsystem

Iterate algorithm over groups of signals, subsystems, and parameters.

Log Signals in For Each Subsystems

Use signal logging in For Each subsystems.

Featured Examples