Can I store non-volatile data in a Silver Series HMI?
Yes. All HMI5xx-002 and later models support non-volatile memory (battery-backed RAM) called “recipes”. Recipe words (16-bits) are used by selecting a data type of “RW” and a recipe bit is selected by using a data type of “RB”. Recipes can also use an offset address for ease of selecting multiple recipe groups. Store the recipe offset in local word 9000 (LW9000). Then use RWI (recipe word indexed) to access each recipe word.