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WOLFRAM SYSTEM MODELER

PeriodicRealClock

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

Wolfram Language

In[1]:=

SystemModel["Modelica.Clocked.ClockSignals.Clocks.PeriodicRealClock"]

Out[1]:=

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

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 (s) 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 (s)

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 (19)

	ClockedWithDiscreteTextbookController Modelica.Clocked.Examples.SimpleControlledDrive Simple controlled drive with discrete textbook controller (period is not used in the controller)
	ClockedWithDiscreteController Modelica.Clocked.Examples.SimpleControlledDrive Simple controlled drive with discrete controller (period is used in the controller)
	ClockedWithDiscretizedContinuousController Modelica.Clocked.Examples.SimpleControlledDrive Simple controlled drive with discretized continuous-time controller
	ClockedWith_AD_DA_Effects Modelica.Clocked.Examples.SimpleControlledDrive Simple controlled drive with discrete controller and simulated AD and DA effects
	SubClocked Modelica.Clocked.Examples.CascadeControlledDrive Drive with clocked cascade controller where clocks are defined with sub-sampling and partitions with super-sampling
	SuperSampled Modelica.Clocked.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.Clocked.Examples.Systems Simple example of a mixing unit where a (discretized) nonlinear inverse plant model is used as feedforward controller
	TimeBasedStep Modelica.Clocked.Examples.Elementary.RealSignals Example of using the clocked simulation time based Step source block
	TickBasedStep Modelica.Clocked.Examples.Elementary.RealSignals Example of using the clocked tick based Step source block
	TimeBasedSine Modelica.Clocked.Examples.Elementary.RealSignals Example of using the clocked time based Sine source block
	TickBasedSine Modelica.Clocked.Examples.Elementary.RealSignals Example of using the clocked tick based Sine source block
	TimeBasedRamp Modelica.Clocked.Examples.Elementary.RealSignals Example of using the clocked time based Ramp source block
	TickBasedRamp Modelica.Clocked.Examples.Elementary.RealSignals Example of using the clocked tick based Ramp source block
	TimeBasedStep Modelica.Clocked.Examples.Elementary.IntegerSignals Example of using the clocked simulation time based Integer Step source block
	TickBasedStep Modelica.Clocked.Examples.Elementary.IntegerSignals Example of using the clocked simulation tick/sample based Integer Step source block
	TimeBasedStep Modelica.Clocked.Examples.Elementary.BooleanSignals Example of using the clocked simulation time based Boolean Step source block
	TickBasedStep Modelica.Clocked.Examples.Elementary.BooleanSignals Example of using the clocked simulation tick/sample based Boolean Step source block
	TimeBasedPulse Modelica.Clocked.Examples.Elementary.BooleanSignals Example of using the clocked simulation time based Boolean Pulse source block
	TickBasedPulse Modelica.Clocked.Examples.Elementary.BooleanSignals Example of using the clock tick based Boolean Pulse source block