MCCLogic is a software simulation package for training electricians in fault-finding.

MCCLogic - The Training Simulator Software for Electricians

Although it is based on a simple motor starter the fault-finding techniques learned by using the software can be applied to a whole range of equipment.

The software is built of two parts: the graphic representation of the system equipment, and a mathematical simulation of the analogue circuits. The student can probe terminals on the simulation screens and measure the voltage at each point. Faults can be applied to the circuit, which then allows the student to practice identification of faults by understanding the schematics and the observed measurements.

Faults can be introduced manually or from a pre-defined timed sequence of events controlled by a script running in the background. Scripts can be customised and saved and can create complex scenarios which will test the abilities of the most experienced technician.

This program assumes that the user understands what a motor starter is, what it is used for and how it works, and is familiar with the terminology associated with it.

To understand the full capabilities of MCCLogic CLICK HERE to download a copy of the User Manual.


The software has complex calculations to perform to simulate the analogue circuitry, so a Windows (version 7 or later) PC with plenty of memory (at least 4GB) and a powerful CPU will improve the user experience. The software will run on 32-bit machines, but these may experience memory problems due to memory fragmentation, so 64-bit is recommended. A mouse with a scroll wheel is required.

Click on the link below to download the setup files. Open the the downloaded ZIP file and extract the files to a temporary folder on your computer, then run setup.exe. Follow the prompts to complete the installation.

Name: MCCLogic
Published: 29th September, 2017
Publisher: Contrelec Limited
Downloads: 26
The following prerequisites are required:
  • Microsoft .NET Framework 4.7 (x86 and x64)
If these components are already installed, you can launch the application now. Otherwise, click the button below to install the prerequisites and run the application.


MCCLogic is completely unrestricted and free to use. Help us keep MCCLogic free to use with a £19.95 (exc. VAT) donation.

Thanks for your support!


MCCLogic is the little brother of SCRLogic – a complete simulation of the SCR drilling motor controls on a drilling rig. For more information or to download a demo of SCRLogic please visit the SCRLogic page.

Important Notice

As of June 17th 2021 Contrelec Limited shall not be accepting new business

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