MasterTool IEC

Develop, simulate, and test programs for Altus Duo Series PLC
Aug 21, 2026
Rating:
4.2 on 5 votes
Category:
Development ToolsIDE
Developer:
Altus S.A.
License:
Freeware
Total downloads:
5,189
Operating system:
Windows XP/Vista/7/8/10/11
Latest version:
2.3.9.16

Description

Access a development environment to build programs for Altus Duo Series Programmable Logic Controllers. Configure modules, create simulations to test logics, and keep track of the process variables. Work with Ladder Diagram (LD), Structured Text (ST), Instruction List (IL), Functional Block Diagram (FBD), Sequential Function Chart (SFC), and Continuous Function Chart (CFC).

There was a download of MasterTool IEC 2.3.9.16 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. We recommend checking the downloaded files with any free antivirus.

The most popular versions among MasterTool IEC users are 2.3 and 1.0. This free software is an intellectual property of Altus S.A. The software relates to Development Tools. You can set up MasterTool IEC on Windows XP/Vista/7/8/10/11 32 and 64-bit.

From the developer:

MasterTool IEC software is a full development environment for Altus Duo Series Programmable Logic Controllers (PLC). It allows programming and setting modules, simulating applications and monitoring process variables.
MasterTool IEC has a simulation feature allowing the testing of all logics developed by the user without the equipment.

You may want to check out more software, such as MatrikonOPC Server for IEC 61850/61400-25, ABB IED Connectivity Package REF615 DE IEC Add-On or Image Editor and Converter, which might be related to MasterTool IEC.

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