outputs
Define component outputs, that is, Physical Signal output ports of block
Syntax
outputs out1 = { value , 'unit' }; end
outputs out1; end
Description
outputs
begins a component outputs definition block, which is terminated by
an end
keyword. This block contains declarations for component
outputs. Outputs will appear as Physical Signal output ports in the block diagram when
the component file is brought into a Simscape™ model.
Each output can be defined as:
A value with unit, where
value
can be a scalar, vector, or matrix. For a vector or a matrix, all signals have the same unit.An untyped identifier, to facilitate unit propagation.
Specifying an optional comment lets you control the port label and location in the block icon.
The following syntax defines a component output, out1
,
as a value with unit. value
is the initial value.
unit
is a valid unit string, defined in the unit
registry.
outputs out1 = { value , 'unit' }; end
If you declare an output without a value and unit, as an untyped identifier, then the
output signal type (size and unit) is based on the input signal type and unit
propagation rules. Use the following syntax to declare a component output,
out1
, as an untyped identifier.
outputs out1; end
You can specify the output port label and location, the way you want it to appear in the block diagram, as a comment:
outputs out1 = { value , 'unit' }; % label:location end
where label
is a string corresponding to
the input port name in the block diagram, location
is
one of the following strings: left
, right
, top
, bottom
.
Examples
The following example declares an output port p
,
with a default value of 1 Pa
, specifying the output
port of a hydraulic pressure sensor. In the block diagram, this port
will be named Pressure and will be located on
the bottom side of the block icon.
outputs p = { 1 'Pa' }; % Pressure:bottom end
The next example declares an output port v
as
a 3-by-3 matrix of linear velocities.
outputs v = {zeros(3), 'm/s'}; end
You can also reference component parameters in output declarations. For example, you can control the signal size by using a block parameter:
component MyComp parameters N = 3; % Matrix size end outputs v = {zeros(N), 'm/s'}; end .... end
The following example declares an input port I
and output port
O
as untyped identifiers. In the block diagram, the output port
will be located on the right side of the block icon. The block propagates the unit and
size of the physical signal from port I
to port O
.
For more information, see Physical Signal Unit Propagation.
inputs I; end outputs O; % :right end
Version History
Introduced in R2008b