Doing version control is a natural part of any software engineers daily work. Doing version control for PLC software has historically mostly been hard, if not impossible. As many automation manufacturers store all software in binary blobs it has not been suitable for version control. Sometimes there have been proprietary solutions available, but it’s not until recently that a shift has started where source code is stored in plain text. For version control, Git has gained more and more popularity for over a decade.

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