Creating an HMI in CODESYS

Introduction Learning CODESYS Temperature Control HMI Code Variables HMI Simulation Comments? Introduction Until now I’ve used OpenPLC for all my PLC (ladder logic) projects, as it’s very user-friendly and it makes using an Arduino as a PLC very simply. However, as I was studying LL and ST, another piece of software kept being mentioned - CODESYS. According to CODESYS, they are “the leading manufacturer-independent IEC 61131-3 automation software for engineering control systems”. Compared with OpenPLC, it is much more feature-rich (and more complex), able to interface with a large number of PLCs. However, the reason I was interested in it is for one particular feature it has that OpenPLC doesn’t - you can make your own basic HMI (human-machine interfaces) with it.