Log Event

R2026b

Log an execution profiling event

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Log Event block

To add a block to a model, double-click the canvas and start typing the block name. Then, select the block from the list.

Libraries:
Simulink Real-Time / Profiling

Description

The Log Event block inserts a user-defined event into the execution profiling event stream when triggered. The user-defined event includes a channel ID, a code number, and a value number.

Examples

Insert Event into Execution Profiling Stream

Use the Log Event block to insert a user-defined event into the execution profiling event stream.

• Open Script

Ports

Input

T — Trigger for log event

1 | 0

When the T (trigger input) changes from 0 to 1 (Rising) or from 1 to 0 (Falling), the block inserts a user-defined simple event defined by the parameters Channel, Code, and Value into the execution profiling event stream.

Parameters

To edit block parameters interactively, use the Property Inspector. From the Simulink^® Toolstrip, on the Simulation tab, in the Prepare gallery, select Property Inspector.

Channel — Event channel ID

0 (default) | int

Specify the event channel ID. The channel ID ranges from 0 to 1023.

Programmatic Use

To set the block parameter value programmatically, use the set_param function.

To get the block parameter value programmatically, use the get_param function.

Parameter:	channel
Values:	0 (default) | int

Example: set_param(gcb,'channel','500')

Code — Event code number

0 (default) | uint32

Specify the event code number.

Programmatic Use

To set the block parameter value programmatically, use the set_param function.

To get the block parameter value programmatically, use the get_param function.

Parameter:	code
Values:	0 (default) | uint32

Example: set_param(gcb,'code','200')

Value — Event value number

0 (default) | uint32

Specify the event value number.

Programmatic Use

To set the block parameter value programmatically, use the set_param function.

To get the block parameter value programmatically, use the get_param function.

Parameter:	value
Values:	0 (default) | uint32

Example: set_param(gcb,'value','200')

Trigger type — Selects trigger signal edge

Rising edge (default) | Falling edge | Either edge

Select the type of signal change that triggers the block. When the input T changes from 0 to 1 (Rising) or from 1 to 9 (Falling), the block inserts a user-defined simple event defined by the parameters Channel, Code, and Value into the execution profiling event stream.

Programmatic Use

To set the block parameter value programmatically, use the set_param function.

To get the block parameter value programmatically, use the get_param function.

Parameter:	trigger
Values:	Rising edge (default) | Falling edge | Either edge

Example: set_param(gcb,'trigger','Falling edge')

Programmatic Use: Add Block

To add the block programmatically, use the add_block function with one of these library block paths as the source.

"slrealtimeproflib/Log Event"

Example: add_block("slrealtimeproflib/Log Event","myModel/myBlock",MakeNameUnique="on")

For information about programmatic access to individual block parameters, see the Programmatic Use section of parameter descriptions on this page.

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Version History

Introduced in R2020b