How to Use Goto and From Blocks in Simulink

In Simulink, use Goto blocks to send signals without direct lines and From blocks to receive those signals elsewhere in the model. This helps keep your diagrams clean by avoiding long connecting lines between blocks.

Syntax

The Goto block sends a signal with a specified tag name, and the From block receives the signal using the same tag name. Both blocks must share the exact tag to connect signals.

• Goto block: Set the Goto Tag parameter to name the signal.
• From block: Set the Goto Tag parameter to the same name to receive the signal.

simulink

Goto Tag: "signal1"
From Tag: "signal1"

Example

This example shows a simple Simulink model where a signal from a Sine Wave block is sent using a Goto block and received by a From block connected to a Scope block for visualization.

plaintext

1. Add a <code>Sine Wave</code> block.
2. Connect it to a <code>Goto</code> block with tag "sineSignal".
3. Add a <code>From</code> block with tag "sineSignal".
4. Connect the <code>From</code> block to a <code>Scope</code> block.
5. Run the simulation to see the sine wave on the scope.

Output

The Scope block displays the sine wave signal sent via the Goto and From blocks.

Common Pitfalls

• Using different tag names in Goto and From blocks breaks the connection.
• Placing Goto and From blocks in different subsystems without proper visibility settings can cause signal loss.
• Overusing Goto/From blocks can make the model harder to follow if not documented well.

simulink

Wrong:
Goto Tag: "signalA"
From Tag: "signalB"

Right:
Goto Tag: "signalA"
From Tag: "signalA"

Quick Reference

Block	Purpose	Key Parameter
Goto	Sends signal using a tag	Goto Tag (signal name)
From	Receives signal by tag	Goto Tag (must match Goto)

Key Takeaways

Use matching tag names in Goto and From blocks to connect signals.

Goto and From blocks help reduce clutter by avoiding long signal lines.

Ensure visibility settings allow signal access across subsystems.

Avoid excessive use to keep models readable and maintainable.