A practical application where you can use, for example, communication between PLC and drive via telegram (control word and status word). See in this examples ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-IP1n1iUC3TY.html ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-pnT7l7ctrYY.html
When you create the first STATIC tag of type WORD, in the column "Retain" set "Set in IDB", and in the next tag that is also STATIC under "Data type" AT will appear