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Lemonergy · Studio block

Variable integer delay

Selects an input from a connected number of previous sample ticks.

Implementation ID
native-variable-delay
Reviewed
2026-10-27

Behavior

y[k] = u[k − connected integer delay]. The worked example connects this operation to signals in Lemonergy Studio.

Interface

Variable integer delay interfaceInputs or arguments on the left, observed outputs on the right. Conserving terminals appear below the component. The tables give units and behavior.Variable integer delayStudio blockin0in1out0
Original Lemonergy interface view. Lines identify ports; they are not a completed simulation circuit.
Ports and observed outputs
NameDirectionUnitMeaning
in0input1Value; real scalar.
in1input1Delay samples; u32 scalar.
out0output1Delayed; real scalar.

Parameters

Defaults are initial model values. Select values for your own model and operating conditions.

Configuration fields
ParameterUnitDefaultMeaning and limits
Sample period
sampleTimeS		s0.1Exact sample grid period. Elapsed-time integration begins after initialization.
Minimum 1e-06
Maximum delay samples
params[0]		14Configured finite numerical parameter.
Initial values
tables[0]		1[0]Configured coefficients or initial values in column-major order.

Equations and rules

  • y[k] = u[k − connected integer delay]

Worked example

Variable integer delay — worked example

Value = 5; Delay samples = 0. Delayed at 0 s = 5.

Open Studio example after release →
Numerical checks for the bundled synthetic example
OutputTime (s)Expected valueUnitAbsolute tolerance
Delayed
out0		0511e-08

Explore the recorded outputs

Variable integer delay recorded example

Variable integer delay
Variable integer delay against timeRecorded synthetic simulation values. Time in seconds; output in —.4.504.750.2550.55.250.755.51—Time (s)
Variable integer delay: 5 — at 0 s

11 actual recorded samples. Lines are visual guides between samples. Synthetic example, not measured cell data.

Download the recorded samples (JSON) · Open this Studio example after release

Use in a workflow

Variable integer delay — worked example

Selects an input from a connected number of previous sample ticks.

  1. Variable integer delay: y[k] = u[k − connected integer delay]. The worked example connects this operation to signals in Lemonergy Studio.
    • Use the block reference for settings and connections.
    • Implementation tested locally; public release pending.
Open Studio example after release

Connected concepts

Limits and interpretation

  • Shapes and element types are explicit. Values must be finite; automatic reshaping and unit conversion are not performed.

Reference basis

This software operation and its numerical conventions are defined by the public contract and worked example; no external research result is claimed.

Implementation sources

This reference follows the public interface and locally verified numerical checks for an upcoming release.

Contract: Lemonergy Studio public contract · Verification record: verification-2026-10-27

  • docs/glossary/native-block-verification.json

This implementation and its workflow uses (JSON) · Knowledge graph (JSON-LD)