From (Simulink Reference)

Accept input from a Goto block

Library

Signal Routing

Description

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. To associate a Goto block with a From block, enter the Goto block's tag in the Goto tag parameter.

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.

This figure shows that using a Goto block and a From block is equivalent to connecting the blocks to which those blocks are connected. In the model at the left, Block1 passes a signal to Block2. That model is equivalent to the model at the right, which connects Block1 to the Goto block, passes that signal to the From block, then on to Block2.

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.

Data Type Support

The From block outputs real or complex signals of any data type supported by Simulink, including fixed-point data types.

For a discussion on the data types supported by Simulink, refer to Data Types Supported by Simulink in the Using Simulink documentation.

Parameters and Dialog Box

Goto tag: The tag of the Goto block passing the signal to this From block.
Goto source: Path of the Goto block connected to this From block. Double-clicking the path displays and highlights the Goto block.
Icon display: Specifies the text to display on the From block's icon. The options are the block's tag, the name of the signal that the block represents, or both the tag and the signal name.

Characteristics

Sample Time
Inherited from block driving the Goto block

Dimensionalized
Yes

Sample Time	Inherited from block driving the Goto block
Dimensionalized	Yes

For Iterator Subsystem From File