Simscape Probes

Probes for viewing physical variables


Updated 22 Feb 2017

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Editor's Note: This file was selected as MATLAB Central Pick of the Week

These probes are for use with the Simscape multi-domain physical modeling tools (Simscape, Sim Driveline, SimHydraulics and SimElectronics). The ssc_Probes.m file calls the library file containing probes for viewing the through and across variable for each domain. The ssc_dc_motor.slx model file is an example of how to use. See Help block for additional usage notes.
To learn more about MathWorks Physical Modeling products go to:
This toolbox was developed by Tom Egel from the [Consulting Services]( group at MathWorks

Cite As

Tom Egel (2023). Simscape Probes (, MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2014b
Compatible with any release
Platform Compatibility
Windows macOS Linux

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Version Published Release Notes

Update for R2016b.
No updates to files. Added Link to Consulting and description.
Updated license

Updated for 2015b. Fixed bug in CopyFcn callback when probe is place inside library block.

Updated for 14b

Updated for R2014a. Added a MATLAB script ssc_Probes.m that calls the appropriate version based on the MATLAB release. The Archive folder contains versions older than the current release of MATLAB.

One more update for R2013b that includes Probes for SimPowerSystems 3G domain in the Electrical library.

Updates for R2013b:
1. Added probes for Thermal Liquid domain
2. Replaced "To Workspace" method with signal logging.
3. Updated R2012a, R2012b and R2013a versions in the Archive directory to also use signal logging.

Updated for 13a. Probes use MATLAB plots instead of Simulink Scopes.

Updated for R2013b. Replaced Simulink Scopes under mask with To Workspace blocks. OpenFcn callback plots workspave variables in MATLAB.

Updated for 12b

Fixed warning message bug found in R2012b pre-release. Updated current version (R2012a) and R2011b version in Archives directory to remove warning message when upgrading to R2012b.

Updated for R2012a

Updated for r2011a. Fixed minor bug (GroupSignals now only displays global signals)

Updated for R2010b. Added sl_customization menu to toggle Goto tag between local and global. Default is now local, per user request.

Assigned domain-specific default units to each probe and made unit visible when model is initialized using InifFcn callback.

Updates for r2010a include probes for Magnetic domain and sl_customizations for editing units and adding output port. See Info block for usage notes.

Updated for release 2010a. Added probes for Magnetic domain and sl_customization.m for changing units and adding output port (see Info block for details)

Changed release to 2009b

Added copyright notice

1. Changed name to Simscape Probes.
2. Added probes for the Pneumatic domain in r2009b.
3. Added internally referenced probes for quicker probing of across variables.
4. Added the GroupSignals GUI.
5. Added an Info button with usage notes.

Updated to use more compact symbols for less clutter. Also added a physical signal scope.

Updated the "through" variable scopes (current, torque, etc...) so that the arrow correctly indicates positive flow when flipped or inverted.