Multiport Switch

Allow different data input sizes

Select this check box to allow input signals with different sizes.

Settings

Default: Off

On

Allows input signals with different sizes, and propagate the input signal size to the output signal.

Off

Requires that input signals be the same size.

Command-Line Information

Parameter: AllowDiffInputSize

Type: string

Value: 'on' | 'off'

Default: 'off'

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Multiport Switch

Output minimum

Specify the minimum value that the block outputs.

Settings

Default: []

The default value is [] (unspecified).

Simulink uses this value to perform:

•Simulation range checking (see “Signal Ranges”)

•Automatic scaling of fixed-point data types

Tip

This number must be a finite real double scalar value.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

2-1043

Multiport Switch

Output maximum

Specify the maximum value the block outputs.

Settings

Default: []

The default value is [] (unspecified).

Simulink uses this value to perform:

•Simulation range checking (see “Signal Ranges”)

•Automatic scaling of fixed-point data types

Tip

This number must be a finite real double scalar value.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

2-1044

Multiport Switch

Output data type

Specify the output data type.

Settings

Default: Inherit: Inherit via internal rule

Inherit: Inherit via internal rule

Simulink chooses a combination of output scaling and data type that requires the smallest amount of memory consistent with accommodating the calculated output range and maintaining the output precision of the block and with the word size of the targeted hardware implementation specified for the model.

If you set the Device type parameter on the Hardware Implementation configuration parameters pane to ASIC/FPGA, Simulink chooses the output data type without regard to hardware constraints. Otherwise, Simulink chooses the smallest available hardware data type capable of meeting the range and precision constraints. For example, if the block multiplies an input of type int8 by a gain of int16 and you specify ASIC/FPGA as the targeted hardware type, the output data type is sfix24. If you select Unspecified (assume 32-bit Generic) for a generic 32-bit microprocessor as the target hardware, the output data type is int32. If the word lengths provided by the target microprocessor cannot accommodate the output range, Simulink displays an error message in the Simulation Diagnostics Viewer.

Inherit: Inherit via back propagation

Uses the data type of the driving block.

double

Specifies output data type double.

single

Specifies output data type single.

int8

Specifies output data type int8.

2-1045

Multiport Switch

uint8

Specifies output data type uint8.

int16

Specifies output data type int16.

uint16

Specifies output data type uint16.

int32

Specifies output data type int32.

uint32

Specifies output data type uint32.

fixdt(1,16,0)

Specifies output data type fixed point fixdt(1,16,0).

fixdt(1,16,2^0,0)

Specifies output data type fixed point fixdt(1,16,2^0,0).

<data type expression>

Uses a data type object, for example, Simulink.NumericType.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

2-1046

Multiport Switch

Mode

Select the category of data to specify.

Settings

Default: Inherit

Inherit

Specifies inheritance rules for data types. Selecting Inherit enables a list of possible values:

•Inherit via internal rule (default)

•Inherit via back propagation

Built in

Specifies built-in data types. Selecting Built in enables a list of possible values:

•double (default)

•single

•int8

•uint8

•int16

•uint16

•int32

•uint32

Fixed point

Specifies fixed-point data types.

Expression

Specifies expressions that evaluate to data types. Selecting Expression enables you to enter an expression.

Dependency

Clicking the Show data type assistant button enables this parameter.

2-1047

Multiport Switch

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

See Also

See “Specify Data Types Using Data Type Assistant”.

2-1048

Multiport Switch

Data type override

Specify data type override mode for this signal.

Settings

Default: Inherit

Inherit

Inherits the data type override setting from its context, that is, from the block, Simulink.Signal object or Stateflow chart in Simulink that is using the signal.

Off

Ignores the data type override setting of its context and uses the fixed-point data type specified for the signal.

Tip

The ability to turn off data type override for an individual data type provides greater control over the data types in your model when you apply data type override. For example, you can use this option to ensure that data types meet the requirements of downstream blocks regardless of the data type override setting.

Dependency

This parameter appears only when the Mode is Built in or Fixed point.

2-1049

Multiport Switch

Signedness

Specify fixed-point data as signed or unsigned.

Settings

Default: Signed

Signed

Specifies the fixed-point data as signed.

Unsigned

Specifies the fixed-point data as unsigned.

Dependency

Selecting Mode > Fixed point enables this parameter.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

See Also

See “Specifying a Fixed-Point Data Type”.

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Multiport Switch

Word length

Specify the bit size of the word that holds the quantized integer.

Settings

Default: 16

Minimum: 0

Maximum: 32

Large word sizes represent large values with greater precision than small word sizes.

Dependency

Selecting Mode > Fixed point enables this parameter.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

See Also

See “Specifying a Fixed-Point Data Type”.

2-1051

Multiport Switch

Scaling

Specify the method for scaling your fixed-point data to avoid overflow conditions and minimize quantization errors.

Settings

Default: Best precision

Binary point

Specify binary point location.

Slope and bias

Enter slope and bias.

Best precision

Specify best-precision values.

Dependencies

Selecting Mode > Fixed point enables this parameter. Selecting Binary point enables:

•Fraction length

•Calculate Best-Precision Scaling

Selecting Slope and bias enables:

•Slope

•Bias

•Calculate Best-Precision Scaling

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

See Also

For more information, see “Specifying a Fixed-Point Data Type”.

2-1052

Multiport Switch

Fraction length

Specify fraction length for fixed-point data type.

Settings

Default: 0

Binary points can be positive or negative integers.

Dependency

Selecting Scaling > Binary point enables this parameter.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

See Also

See “Specifying a Fixed-Point Data Type”.

2-1053

Multiport Switch

Slope

Specify slope for the fixed-point data type.

Settings

Default: 2^0

Specify any positive real number.

Dependency

Selecting Scaling > Slope and bias enables this parameter.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

See Also

See “Specifying a Fixed-Point Data Type”.

2-1054

Multiport Switch

2-1055

Multiport Switch

Examples Zero-Based Indexing for Data Ports

The sf_aircontrol model uses a Multiport Switch block in the Physical Plant subsystem. This block uses zero-based indexing for contiguous ordering of three data ports.

The indices are visible on the data port labels. You do not have to open the block dialog box to determine whether the data ports use zero-based or one-based indexing.

When you set Data port for default case to Last data port, the last data port includes a * on the label. The comma after the * indicates that the data port index has a value. This port corresponds to the default case, which applies when the control input does not match the data port indices 0, 1, or 2. In this case, the Multiport Switch block outputs a value of –0.1.

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Multiport Switch

One-Based Indexing for Data Ports

The sf_semantics_hotel_checkin model uses a Multiport Switch block. This block uses one-based indexing for contiguous ordering of three data ports.

If you increase the size of the block icon, the indices are visible on the data port labels. You do not have to open the block dialog box to

determine whether the data ports use zero-based or one-based indexing.

2-1057

Multiport Switch

Enumerated Names for Data Port Indices

The sldemo_fuelsys model uses a Multiport Switch block in the fuel_rate_control/fuel_calc/feedforward_fuel_rate subsystem. This block uses the enumerated type sld_FuelModes to specify three data port indices: LOW, RICH, and DISABLED.

When you set Data port for default case to Last data port, the last data port includes a * on the label. The comma and ellipsis after the * indicate that the data port index has a value. This port corresponds to the default case, which applies when the control input does not match the data port indices LOW, RICH, or DISABLED. In this case, the Multiport Switch block outputs a value of 0.

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Multiport Switch

Noncontiguous Values for Data Port Indices

The following model uses a Multiport Switch block that specifies noncontiguous integer values for data ports.

The values of the indices are visible on the data port labels. You do not have to open the block dialog box to determine which value maps to each data port.

When you set Data port for default case to Additional data port, an extra port with a * label appears. This port corresponds to the default case, which applies when the control input does not match the data port indices 3, 5, 0, or 18. In this case, the Multiport Switch block outputs a value of 1.

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Multiport Switch

Behavior for an Index Vector Block

The following model uses two Index Vector blocks that specify zero-based and one-based indexing, respectively.

If the value of the control input is not an integer, the block truncates the value by rounding to floor. For more information, see “How the Block Interprets the Control Input” on page 2-1019.

2-1060

Multiport Switch

2-1061

Mux

2-1062

Mux

2-1063

Mux

2-1064

Mux

Parameters and Dialog Box

2-1065

Mux

Number of inputs

Specify number and size of inputs.

Settings

Default: 2

You can enter a comma-separated list of signal names for this parameter field.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

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Mux

Display option

Specify the appearance of the block in the model.

Settings

Default: bar

bar

Displays the block in a solid foreground color

none

Mux appears inside the block

signals

Displays signal names next to each port

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

2-1067

Mux

Examples The sf_car model uses a Mux block to combine two signals for input to a Scope block:

The sf_aircontrol model uses a Mux block to combine two signals for input to a Stateflow chart:

The following models also show how to use the Mux block:

2-1068

Mux

• sldemo_auto_climatecontrol

• sldemo_suspn

• sldemo_zeroxing

• penddemo

2-1069

Outport

•It automatically numbers the Outport blocks within a top-level system or subsystem sequentially, starting with 1.

•If you add an Outport block, it is assigned the next available number.

•If you delete an Outport block, other port numbers are automatically renumbered to ensure that the Outport blocks are in sequence and that no numbers are omitted.

Outport Blocks in a Subsystem

Outport blocks in a subsystem represent outputs from the subsystem. A signal arriving at an Outport block in a subsystem flows out of the associated output port on that Subsystem block. The Outport block associated with an output port on a Subsystem block is the block whose Port number parameter matches the relative position of the output port on the Subsystem block. For example, the Outport block whose Port number parameter is 1 sends its signal to the block connected to the topmost output port on the Subsystem block.

If you renumber the Port number of an Outport block, the block becomes connected to a different output port, although the block continues to send the signal to the same block outside the subsystem.

When you create a subsystem by selecting existing blocks, if more than one Outport block is included in the grouped blocks, Simulink software automatically renumbers the ports on the blocks.

The Outport block name appears in the Subsystem icon as a port label. To suppress display of the label, click the Outport block and select

Format > Hide Name.

2-1070

Outport

Outport Blocks in Conditionally Executed Contexts

When an Outport block is in a conditionally executed subsystem or a Model block, use one of the following approaches:

•Specify an initial output value for the Outport block.

•Use the value inherited from input signal of the Outport block.

Specifying Initial Conditions

To explicitly specify an initial output value:

1Select Dialog in the Source of initial output value drop-down list.

2Specify the Initial output parameter.

If you select Dialog, you can also specify what happens to the output when the subsystem is disabled, using the Output when disabled drop-down menu. Select either:

•reset – The output value is reset to the Initial output value when the subsystem is disabled.

•held – The output value remains at its most recent value when the subsystem is disabled.

Note If you are connecting the output of the conditionally executed subsystem to a Merge block, set Output when disabled to held to ensure consistent simulation results.

If you are using simplified initialization mode, you must select held when connecting a conditionally executed subsystem to a Merge block. However, you do not need to specify an Initial Condition (IC) for the Outport block of a conditionally executed subsystem that directly drives a Merge block. (This rule applies only when Outport and Merge blocks are in the same model.) For more information, see “Underspecified initialization detection”.

2-1071

Outport

Inheriting Initial Conditions

The initial output value of the outport block can be inherited from the following sources:

•Output port of another conditionally executed subsystem

•Merge block (with Initial output specified)

•Function-Call Model Reference block

•Constant block (simplified initialization mode only)

•IC block (simplified initialization mode only)

The procedure you use to inherit the initial conditions of the Outport block differs depending on whether you are using classic initialization mode or simplified initialization mode.

To inherit initial conditions in classic initialization mode:

1Select Dialog in the Source of initial output value drop-down list.

2Set the Initial output parameter to [] (empty matrix).

3Click OK.

Note For all other driving blocks, specify an explicit initial output value.

To inherit initial conditions in simplified initialization mode:

1 Select Input signal in the Source of initial output value drop-down list.

2Click OK.

The Initial output and Output when disabled parameters are disabled, and the values are both inherited from the input signal.

2-1072

Outport

For more information on classic and simplified initialization mode, see “Underspecified initialization detection”.

Outport Blocks in a Top-Level System

Outport blocks in a top-level system have two uses: to supply external outputs to the workspace, which you can do by using either the Model Configuration Parameters dialog box or the sim command, and to provide a means for analysis functions to obtain output from the system.

•To supply external outputs to the workspace, use the Configuration Parameters dialog box (see Exporting Output Data to the MATLAB Workspace) or the sim command (see sim). For example, if a system has more than one Outport block and the save format is array, the following command

[t,x,y] = sim(...);

writes y as a matrix, with each column containing data for a different Outport block. The column order matches the order of the port numbers for the Outport blocks.

If you specify more than one variable name after the second (state) argument, data from each Outport block is written to a different variable. For example, if the system has two Outport blocks, to save data from Outport block 1 to speed and the data from Outport block 2 to dist, you could specify this command:

[t,x,speed,dist] = sim(...);

•To provide a means for the linmod and trim analysis functions to obtain output from the system (see “Linearizing Models”)

Connecting Buses to Root Level Outports

A root level Outport of a model can accept a virtual bus only if all elements of the bus have the same data type. The Outport block automatically unifies the bus to a vector having the same number of elements as the bus, and outputs that vector.

2-1073

Outport

2-1074

Outport

of the range of the output data type, Simulink software halts the simulation and signals an error.

2-1075

Outport

Parameters The Main pane of the Outport block dialog box appears as follows:

and Dialog Box

2-1076

Outport

The Signal Attributes pane of the Outport block dialog box appears as follows:

2-1077

Outport

2-1078

Outport

•“Package” on page 2-1941

•“Icon display” on page 2-1081

•“Source of initial output value” on page 2-1082

•“Output when disabled” on page 2-1083

•“Initial output” on page 2-1084

•“Minimum” on page 2-1886

•“Maximum” on page 2-1887

•“Data type” on page 2-1086

•“Show data type assistant” on page 2-1665

•“Mode” on page 2-1089

•“Data type override” on page 2-1892

•“Signedness” on page 2-1893

•“Word length” on page 2-1896

•“Scaling” on page 2-1728

•“Fraction length” on page 2-1897

•“Slope” on page 2-1898

•“Bias” on page 2-1898

•“Lock output data type setting against changes by the fixed-point tools” on page 2-1713

•“Output as nonvirtual bus in parent model” on page 2-1097

•“Port dimensions (-1 for inherited)” on page 2-1099

•“Variable-size signal” on page 2-1100

•“Sample time (-1 for inherited)” on page 2-1938

•“Signal type” on page 2-1103

•“Sampling mode” on page 2-1104

2-1079

Outport

Port number

Specify the port number of the block.

Settings

Default: 1

This parameter controls the order in which the port that corresponds to the block appears on the parent subsystem or model block.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

2-1080

Outport

Icon display

Specify the information to be displayed on the icon of this input port.

Settings

Default: Port number

Signal name

Display the name of the signal connected to this port (or signals if the input is a bus).

Port number

Display port number of this port.

Port number and signal name

Display both the port number and the names of the signals connected to this port.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

2-1081

Outport

Source of initial output value

Select the source of the initial output value of the Outport block.

Settings

Default: Dialog

Dialog

The initial output value is specified by the Initial output parameter on the dialog.

Input signal

The initial output value is inherited from the input signal.

Tips

•If you are using classic initialization mode, you must select Dialog. Selecting Input signal will cause an error.

•If you are using classic initialization mode and want to inherit the initial output value, set this parameter to Dialog, and then specify [] (empty matrix) for the Initial output value. For more information, see Inheriting Initial Conditions on page 1072.

Dependencies

This parameter applies only if the Outport resides in an Enabled Subsystem.

Selecting Dialog enables the following parameters:

•Output when disabled

•Initial output

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

2-1082

Outport

Output when disabled

Specify what happens to the block output when the subsystem is disabled.

Settings

Default: held

held

Output is held when the subsystem is disabled.

reset

Output is reset when the subsystem is disabled.

Tips

•If you are connecting the output of a conditionally executed subsystem to a Merge block, set Output when disabled to held to ensure consistent simulation results.

•If you are using simplified initialization mode, you must select held when connecting a conditionally executed subsystem to a Merge block.

Dependencies

•Selecting Dialog in Source of initial output value enables this parameter.

•This parameter applies only if the Outport resides in an Enabled Subsystem.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

2-1083

Outport

Initial output

For conditionally executed subsystems, specify the block output before the subsystem executes and while it is disabled.

Settings

Default: [ ]

Simulink software does not allow the initial output of this block to be inf or NaN.

Tips

•If you are using classic initialization mode, specify [] (empty matrix) to inherit the initial output value from the input signal. For more information, see Inheriting Initial Conditions on page 1072.

•You can also specify [] if you are using classic initialization mode, and your model does not depend on the initial output of the conditionally executed subsystem.

•If you are using simplified initialization mode, you cannot specify [], you must specify an explicit value. If you do not want to specify an initial output value for this block, set Source of initial output value to Input signal.

•For information about specifying an initial condition structure, see “Specify Initial Conditions for Bus Signals”

Dependencies

•Selecting Dialog in Source of initial output value enables this parameter.

•This parameter applies only if the Outport resides in an Enabled Subsystem.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

2-1084

Outport

Minimum

Specify the minimum value that the block should output.

Settings

Default: [] (unspecified)

This number must be a finite real double scalar value.

Note If you specify a bus object as the data type for this block, do not set the minimum value for bus data on the block. Simulink ignores this setting. Instead, set the minimum values for bus elements of the bus object specified as the data type. For information on the Minimum property of a bus element, see Simulink.BusElement.

Simulink software uses this value to perform:

•Simulation range checking (see “Signal Ranges”)

•Automatic scaling of fixed-point data types

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

2-1085

Outport

Maximum

Specify the maximum value that the block should output.

Settings

Default: [] (unspecified)

This number must be a finite real double scalar value.

Note If you specify a bus object as the data type for this block, do not set the maximum value for bus data on the block. Simulink ignores this setting. Instead, set the maximum values for bus elements of the bus object specified as the data type. For information on the Maximum property of a bus element, see Simulink.BusElement.

Simulink software uses this value to perform:

•Simulation range checking (see “Signal Ranges”)

•Automatic scaling of fixed-point data types

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

Data type

Specify the output data type of the external input.

Settings

Default: Inherit: auto

Inherit: auto

A rule that inherits a data type

double

Data type is double.

single

Data type is single.

2-1086

Outport

int8

Data type is int8.

uint8

Data type is uint8.

int16

Data type is int16.

uint16

Data type is uint16.

int32

Data type is int32.

uint32

Data type is uint32.

boolean

Data type is boolean.

fixdt(1,16,0)

Data type is fixed point fixdt(1,16,0).

fixdt(1,16,2^0,0)

Data type is fixed point fixdt(1,16,2^0,0).

Enum: <class name>

Data type is enumerated, for example, Enum: BasicColors.

Bus: <object name>

Data type is a bus object.

<data type expression>

The name of a data type object, for example

Simulink.NumericType

Do not specify a bus object as the expression.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

2-1087

Outport

Show data type assistant

Display the Data Type Assistant.

Settings

The Data Type Assistant helps you set the Output data type parameter.

For more information, see “Specify Block Output Data Types”.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

2-1088

Outport

Mode

Select the category of data to specify.

Settings

Default: Inherit

Inherit

Inheritance rule for data types. Selecting Inherit enables a second menu/text box to the right.

Built in

Built-in data types. Selecting Built in enables a second menu/text box to the right. Select one of the following choices:

•double (default)

•single

•int8

•uint8

•int16

•uint16

•int32

•uint32

•boolean

Fixed point

Fixed-point data types.

Enumerated

Enumerated data types. Selecting Enumerated enables a second menu/text box to the right, where you can enter the class name.

Bus

Bus object. Selecting Bus enables a Bus object parameter to the right, where you enter the name of a bus object that you want to use to define the structure of the bus. If you need to create or

2-1089

Outport

change a bus object, click Edit to the right of the Bus object field to open the Simulink Bus Editor. For details about the Bus Editor, see “Manage Bus Objects with the Bus Editor”.

Expression

Expressions that evaluate to data types. Selecting Expression enables a second menu/text box to the right, where you can enter the expression.

Do not specify a bus object as the expression.

Dependency

Clicking the Show data type assistant button enables this parameter.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

See Also

See “Specify Data Types Using Data Type Assistant”.

2-1090

Outport

Data type override

Specify data type override mode for this signal.

Settings

Default: Inherit

Inherit

Inherits the data type override setting from its context, that is, from the block, Simulink.Signal object or Stateflow chart in Simulink that is using the signal.

Off

Ignores the data type override setting of its context and uses the fixed-point data type specified for the signal.

Tip

The ability to turn off data type override for an individual data type provides greater control over the data types in your model when you apply data type override. For example, you can use this option to ensure that data types meet the requirements of downstream blocks regardless of the data type override setting.

Dependency

This parameter appears only when the Mode is Built in or Fixed point.

2-1091

Outport

Signedness

Specify whether you want the fixed-point data as signed or unsigned.

Settings

Default: Signed

Signed

Specify the fixed-point data as signed.

Unsigned

Specify the fixed-point data as unsigned.

Dependencies

Selecting Mode > Fixed point enables this parameter.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

See Also

For more information, see “Specifying a Fixed-Point Data Type”.

2-1092

Outport

Word length

Specify the bit size of the word that holds the quantized integer.

Settings

Default: 16

Minimum: 0

Maximum: 32

Dependencies

Selecting Mode > Fixed point enables this parameter.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

See Also

For more information, see “Specifying a Fixed-Point Data Type”.

2-1093

Outport

Scaling

Specify the method for scaling your fixed-point data to avoid overflow conditions and minimize quantization errors.

Settings

Default: Best precision

Binary point

Specify binary point location.

Slope and bias

Enter slope and bias.

Best precision

Specify best-precision values.

Dependencies

Selecting Mode > Fixed point enables this parameter. Selecting Binary point enables:

•Fraction length

•Calculate Best-Precision Scaling

Selecting Slope and bias enables:

•Slope

•Bias

•Calculate Best-Precision Scaling

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

See Also

For more information, see “Specifying a Fixed-Point Data Type”.

2-1094

Outport

Fraction length

Specify fraction length for fixed-point data type.

Settings

Default: 0

Binary points can be positive or negative integers.

Dependencies

Selecting Scaling > Binary point enables this parameter.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

See Also

For more information, see “Specifying a Fixed-Point Data Type”.

2-1095

Outport

Slope

Specify slope for the fixed-point data type.

Settings

Default: 2^0

Specify any positive real number.

Dependencies

Selecting Scaling > Slope and bias enables this parameter.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

See Also

For more information, see “Specifying a Fixed-Point Data Type”.

Bias

Specify bias for the fixed-point data type.

Settings

Default: 0

Specify any real number.

Dependencies

Selecting Scaling > Slope and bias enables this parameter.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

See Also

For more information, see “Specifying a Fixed-Point Data Type”.

2-1096

Outport

Lock output data type setting against changes by the fixed-point tools

Select to lock the output data type setting of this block against changes by the Fixed-Point Tool and the Fixed-Point Advisor.

Settings

Default: Off

On

Locks the output data type setting for this block.

Off

Allows the Fixed-Point Tool and the Fixed-Point Advisor to change the output data type setting for this block.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

See Also

For more information, see “Use Lock Output Data Type Setting”.

Output as nonvirtual bus in parent model

Select this parameter if you want the bus emerging in the parent model to be nonvirtual. The bus that is input to the port can be virtual or nonvirtual, regardless of the setting of Output as nonvirtual bus

in parent model.

Settings

Default: Off

On

Select this parameter if you want the bus emerging in the parent model to be nonvirtual.

Off

Clear this parameter if you want the bus emerging in the parent model to be virtual.

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Outport

Tips

All signals in a nonvirtual bus must have the same sample time, even if the elements of the associated bus object specify inherited sample times. Any bus operation that would result in a nonvirtual bus that violates this requirement generates an error. Therefore, if you select this option all signals in the bus must have the same sample time. You can use a Rate Transition block to change the sample time of an individual signal, or of all signals in a bus, to allow the signal or bus to be included in a nonvirtual bus.

Dependency

via bus object enables this parameter.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

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Outport

Port dimensions (-1 for inherited)

Specify the dimensions that a signal must have in order to be connected to this Outport block.

Settings

Default: -1

Valid values are:

Dependency

Clearing via bus object enables this parameter.

Command-Line Information

See “Block-Specific Parameters” on page 8-109 for the command-line information.

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