A syntax error happens when there's a mistake in the code's structure, like typing a variable name wrong. #CODESYS highlights these errors with a red squiggly line and gives details when you hover over the error. It also checks for syntax errors during the build process, showing them in the Messages window. Fixing them is simple, like correcting a typo, since CODESYS points you directly to the issue. #SyntaxErrors #PLCProgramming | RealPars