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WOLFRAM SYSTEM MODELER

PeriodicRealClock

Generates a periodic clock signal with a period defined by a Real number

Wolfram Language

In[1]:=

SystemModel["Modelica_Synchronous.ClockSignals.Clocks.PeriodicRealClock"]

Out[1]:=

Information

This component generates a periodic clock that starts ticking when the simulation starts. The period is defined in seconds by a Real number. If clocks are synchronized relatively to each other then only one of the clocks can be defined with PeriodicRealClock.

For an introduction to clocks see UsersGuide.Clocks. If exact, integer based, time synchronization with absolute period definitions is desired, use block PeriodicExactClock to generate a periodic clock signal.

If a clock is associated to a clocked continuous-time partition, then an integrator has to be defined that is used to integrate the partition from the previous to the current clock tick. This is performed by setting parameter useSolver = true and defining the integration method as String with parameter solver. Both parameters are in tab Advanced. For an example, see Examples.Systems.ControlledMixingUnit.

Parameters (3)

useSolver	Value: false Type: Boolean Description: = true, if solverMethod shall be explicitly defined
solverMethod	Value: "ExplicitEuler" Type: SolverMethod Description: Integration method used for discretized continuous-time partitions
period	Value: Type: Time Description: Period of clock (defined as Real number)

useSolver

Value: false

Type: Boolean

Description: = true, if solverMethod shall be explicitly defined

solverMethod

Value: "ExplicitEuler"

Type: SolverMethod

Description: Integration method used for discretized continuous-time partitions

period

Value:

Type: Time

Description: Period of clock (defined as Real number)

Connectors (1)

	y	Type: ClockOutput Description: 'output Clock' as connector

Type: ClockOutput

Description: 'output Clock' as connector

Used in Examples (36)

	ClockedWithDiscreteTextbookController Modelica_Synchronous.Examples.SimpleControlledDrive Simple controlled drive with discrete textbook controller (period is not used in the controller)
	ClockedWithDiscreteController Modelica_Synchronous.Examples.SimpleControlledDrive Simple controlled drive with discrete controller (period is used in the controller)
	ClockedWithDiscretizedContinuousController Modelica_Synchronous.Examples.SimpleControlledDrive Simple controlled drive with discretized continuous-time controller
	ClockedWith_AD_DA_Effects Modelica_Synchronous.Examples.SimpleControlledDrive Simple controlled drive with discrete controller and simulated AD and DA effects
	SubClocked Modelica_Synchronous.Examples.CascadeControlledDrive Drive with clocked cascade controller where clocks are defined with sub-sampling and partitions with super-sampling
	SuperSampled Modelica_Synchronous.Examples.CascadeControlledDrive Drive with clocked cascade controller where fastest partition is defined with a clock and slower partition is defined with super-sampling
	ControlledMixingUnit Modelica_Synchronous.Examples.Systems Simple example of a mixing unit where a (discretized) nonlinear inverse plant model is used as feedforward controller
	TimeBasedStep Modelica_Synchronous.Examples.Elementary.IntegerSignals Example of using the clocked simulation time based Integer Step source block
	TickBasedStep Modelica_Synchronous.Examples.Elementary.IntegerSignals Example of using the clocked simulation tick/sample based Integer Step source block
	TimeBasedStep Modelica_Synchronous.Examples.Elementary.BooleanSignals Example of using the clocked simulation time based Boolean Step source block
	TickBasedStep Modelica_Synchronous.Examples.Elementary.BooleanSignals Example of using the clocked simulation tick/sample based Boolean Step source block
	TimeBasedPulse Modelica_Synchronous.Examples.Elementary.BooleanSignals Example of using the clocked simulation time based Boolean Pulse source block
	TickBasedPulse Modelica_Synchronous.Examples.Elementary.BooleanSignals Example of using the clock tick based Boolean Pulse source block
	TestFIR_1 Modelica_Synchronous.WorkInProgress.Tests
	TestFIR Modelica_Synchronous.WorkInProgress.Tests
	TestFIR_Step Modelica_Synchronous.WorkInProgress.Tests
	TestFIR_Step2 Modelica_Synchronous.WorkInProgress.Tests
	TestFIR_Step2b Modelica_Synchronous.WorkInProgress.Tests
	TestInterpolator Modelica_Synchronous.WorkInProgress.Tests
	TestUnitDelay Modelica_Synchronous.WorkInProgress.Tests
	TestTransferFunction Modelica_Synchronous.WorkInProgress.Tests
	TestStateSpace Modelica_Synchronous.WorkInProgress.Tests
	TestRealSampler Modelica_Synchronous.WorkInProgress.Tests
	TestShiftSample Modelica_Synchronous.WorkInProgress.Tests
	TestClockedRealToTrigger Modelica_Synchronous.WorkInProgress.Tests
	TestClockedBooleanToTrigger Modelica_Synchronous.WorkInProgress.Tests
	TestClockedIntegerToTrigger Modelica_Synchronous.WorkInProgress.Tests
	TestBackSample Modelica_Synchronous.WorkInProgress.Tests
	TestClockedRealToSquare Modelica_Synchronous.WorkInProgress.Tests
	TestIntegerSamplerAndHolds Modelica_Synchronous.WorkInProgress.Tests
	TestBooleanSamplerAndHolds Modelica_Synchronous.WorkInProgress.Tests
	TestReplaceableSamplerHold Modelica_Synchronous.WorkInProgress.Tests Using partial sample and hold blocks to allow redeclaration of blocks to simulated communication blocks
	TestSimulatedADC Modelica_Synchronous.WorkInProgress.Tests
	TestCommunicationDelay Modelica_Synchronous.WorkInProgress.Tests
	SuperSampling Modelica_Synchronous.WorkInProgress.Tests.Effects Different ways to super sample a signal
	TheDifferentClocks Modelica_Synchronous.WorkInProgress.ForDocumentation

Used in Components (7)

	TimeBasedStep Modelica_Synchronous.Examples.Elementary.RealSignals Example of using the clocked simulation time based Step source block
	TickBasedStep Modelica_Synchronous.Examples.Elementary.RealSignals Example of using the clocked tick based Step source block
	TimeBasedSine Modelica_Synchronous.Examples.Elementary.RealSignals Example of using the clocked time based Sine source block
	TickBasedSine Modelica_Synchronous.Examples.Elementary.RealSignals Example of using the clocked tick based Sine source block
	TimeBasedRamp Modelica_Synchronous.Examples.Elementary.RealSignals Example of using the clocked time based Ramp source block
	TickBasedRamp Modelica_Synchronous.Examples.Elementary.RealSignals Example of using the clocked tick based Ramp source block
	TestPIDController Modelica_Synchronous.WorkInProgress.Incubate