Accept input from Goto block
Simulink / Signal Routing
HDL Coder / Signal Routing
The From block accepts a signal from a corresponding Goto block, then passes it as output. The data type of the output is the same as that of the input from the Goto block. From and Goto blocks allow you to pass a signal from one block to another without actually connecting them.
For example, this model uses a Goto block and a From block.
An equivalent model passes the Sine Wave block signal directly to the Gain block.
A From block can receive its signal from only one Goto block, although a Goto block can pass its signal to more than one From block.
To associate a Goto block with a From block, enter the Goto block tag in the Goto Tag parameter.
The visibility of a Goto block tag determines the From blocks that can receive its signal. For more information, see Goto and Goto Tag Visibility. The block indicates the visibility of the Goto block tag:
A local tag name is enclosed in brackets (
A scoped tag name is enclosed in braces (
A global tag name appears without additional characters.
The From block supports signal label propagation. For more information, see Signal Label Propagation.
Port_1 — Signal from connected Goto block
scalar | vector | matrix | N-D array
Signal from connected Goto block, output with the same dimensions and data type as the input to the Goto block.
fixed point |
Goto Tag — Tag of the Goto block that forwards its signal to this block
A (default) |
<More Tags...> | ...
Specify the tag of the Goto block that forwards its signal to this From block. To change the tag, select a new tag from the drop-down list.
The drop-down list displays the Goto tags that the From
block can currently see. An item labeled
Tags...> appears at the end of the list the first time you
display the list in a Simulink® session. Selecting this item causes the block to update the
tags list to include the tags of Goto blocks residing in
library subsystems referenced by the model containing this
From block. Simulink software displays a progress bar while building the list of
library tags. Simulink saves the updated tags list for the duration of the
Simulink session or until the next time you select the adjacent
Update Tags button. You need to update the tags
list again in the current session only if the libraries referenced by the
model have changed since the last time you updated the list.
If you use multiple From and Goto Tag Visibility blocks to refer to the same Goto tag, you can simultaneously rename the tag in all of the blocks. To do so, use the Rename All button in the Goto block dialog box. Alternatively, when you change the tag on the Goto block icon, propagate the new name to all corresponding From and Goto Tag Visibility blocks by pressing Shift+Enter.
To find the relevant Goto block, use the Goto Source hyperlink in the From block dialog box.
|Type: character vector|
Update Tags — Update list of visible tags
Updates the list of tags visible to this From block, including tags residing in libraries referenced by the model containing this From block. Update the tags list again in the current session only if the libraries referenced by the model have changed since the last time you updated the list.
Goto Source — Path to connected Goto block
Path of the Goto block connected to this From block. Clicking the path displays and highlights the Goto block in your model.
In the Simulink Editor, selecting the From block highlights the corresponding Goto and Goto Tag Visibility blocks.
When a corresponding Goto or Goto Tag Visibility block is not in the current diagram, the Subsystem block that contains the block is highlighted.
To show a corresponding block in an open diagram or new tab, select the From block and pause on the ellipsis. Then, select Related Blocks from the action bar. When multiple blocks correspond to the selected block, a list of related blocks opens. You can filter the list of related blocks by entering a search term in the text box. After you select a related block from the list, window focus goes to the open diagram or new tab that shows the related block.
Icon Display — Text to display on block icon
Tag and signal name |
Specifies the text to display on the From block icon. The options are the block tag, the name of the signal that the block represents, or both the tag and the signal name.
|Type: character vector|
Search for Goto Tags
To search for Goto tags in libraries referenced by the model when
opening the From block dialog box, use the
FollowLinksWhenOpeningFromGotoBlocks model parameter with the
'off'— Do not search for Goto tags (default).
'on'— Search for Goto tags.
C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.
HDL Code Generation
Generate Verilog and VHDL code for FPGA and ASIC designs using HDL Coder™.
HDL Coder™ provides additional configuration options that affect HDL implementation and synthesized logic. See also Required HDL Settings for Goto and From Blocks (HDL Coder).
This block has one default HDL architecture.
Number of registers to place at
the outputs by moving existing delays within your design. Distributed
pipelining does not redistribute these registers. The default is
Number of output pipeline stages
to insert in the generated code. Distributed pipelining and constrained
output pipelining can move these registers. The default is
PLC Code Generation
Generate Structured Text code using Simulink® PLC Coder™.
Design and simulate fixed-point systems using Fixed-Point Designer™.
Introduced before R2006a