https://www.sagatowski.com/tags/iec-61131-3/ Recent content in Iec 61131-3 on Sagatowski GmbH Hugo en Tue, 16 Dec 2025 00:00:00 +0000 https://www.sagatowski.com/posts/codesys_is_not_open_source/ Tue, 16 Dec 2025 00:00:00 +0000 https://www.sagatowski.com/posts/codesys_is_not_open_source/ <p><img src="../../images/2025_12_16_codesys_is_not_open_source.png" alt="2025_12_16_codesys_is_not_open_source.png"></p> <p>From time to time I see posts and comments on the web saying that CODESYS is open-source. Normally I ignore making corrections, but last week something weird happened. We were involved in a bidding for a contract, where the buyer selected an integrator which of one of the selection criteria for the other system was that they used the open-source IDE/runtime CODESYS. It didn&rsquo;t say open. It said <strong>open-source</strong>.</p>