Modelica_StateGraph2.Blocks.MathBoolean

Package Content

Name	Description
ShowValue	Show Integer value from numberPort or from number input field in diagram layer dynamically
And	Logical 'and': y = u[1] and u[2] and ... and u[nu]
Or	Logical 'or': y = u[1] or u[2] or ... or u[nu]
Xor	Logical 'xor': y = oneTrue(u) (y is true, if exactly one element of u is true, otherwise it is false)
Nand	Logical 'nand': y = not ( u[1] and u[2] and ... and u[nu] )
Nor	Logical 'nor': y = not ( u[1] or u[2] or ... or u[nu] )
RisingEdge	Output y is true, if the input u has a rising edge, otherwise it is false (y = edge(u))
FallingEdge	Output y is true, if the input u has a falling edge, otherwise it is false (y = edge(not u))
ChangingEdge	Output y is true, if the input u has either a rising or a falling edge and otherwise it is false (y=change(u))
MultiSwitch	Set Boolean expression that is associated with the first active input signal
OnDelay	Delay a rising edge of the input, but do not delay a falling edge.

Modelica_StateGraph2.Blocks.MathBoolean.ShowValue

Parameters

Name	Description
use_activePort	= true, if activePort enabled
active	Boolean variable to visualize if use_activePort=false (time varying)

Connectors

Name	Description
activePort	Boolean variable to be shown in diagram layer if use_activePort = true
active2

Modelica_StateGraph2.Blocks.MathBoolean.And

Information

Connectors

Name	Description
u[nu]
y

Modelica_StateGraph2.Blocks.MathBoolean.Or

Information

Connectors

Name	Description
u[nu]
y

Modelica_StateGraph2.Blocks.MathBoolean.Xor

Information

Connectors

Name	Description
u[nu]
y

Modelica_StateGraph2.Blocks.MathBoolean.Nand

Information

Connectors

Name	Description
u[nu]
y

Modelica_StateGraph2.Blocks.MathBoolean.Nor

Information

Connectors

Name	Description
u[nu]
y

Modelica_StateGraph2.Blocks.MathBoolean.RisingEdge

Information

A rising edge of the Boolean input u results in y = true at this time instant. At all other time instants, y = false.

Parameters

Name	Description
pre_u_start	Value of pre(u) at initial time

Connectors

Name	Description
y
u

Modelica_StateGraph2.Blocks.MathBoolean.FallingEdge

Information

A falling edge of the Boolean input u results in y = true at this time instant. At all other time instants, y = false.

Parameters

Name	Description
pre_u_start	Value of pre(u) at initial time

Connectors

Name	Description
y
u

Modelica_StateGraph2.Blocks.MathBoolean.ChangingEdge

Information

A changing edge, i.e., either rising or falling, of the Boolean input u results in y = true at this time instant. At all other time instants, y = false.

Parameters

Name	Description
pre_u_start	Value of pre(u) at initial time

Connectors

Name	Description
y
u

Modelica_StateGraph2.Blocks.MathBoolean.MultiSwitch

Information

The block has a vector of Boolean input signals u[nu] and a vector of (time varying) Boolean expressions expr[:]. The output signal y is set to expr[i], if i is the first element in the input vector u that is true. If all input signals are false, y is set to parameter "y_default" or to pre(y) depending on the parameter use_pre_as_default:

  // Conceptual equation (not valid Modelica)
  i = 'first element of u[:] that is true';
  y = if i==0 then if use_pre_as_default then pre(y) else y_default else expr[i];

Parameters

Name	Description
expr[nu]	y = if u[i] then expr[i] else y_default (time varying)
use_pre_as_default	set true to hold last value as default (y_default = pre(y))
y_default	Default value of output y if all u[i] = false

Connectors

Name	Description
u[nu]	Set y = expr[i], if u[i] = true
y	Output depending on expression

Modelica_StateGraph2.Blocks.MathBoolean.OnDelay

Information

A rising edge of the Boolean input u gives a delayed output. A falling edge of the input is immediately given to the output.

Simulation results of a typical example with a delay time of 0.1 s is shown in the next figure.

Parameters

Name	Description
delayTime	Delay time [s]

Connectors

Name	Description
y
u