IMPORTANT: mySCADA uses mySCADA is using a direct memory access when communicating with Siemens S7 PLCs. Make sure you uncheck the “optimized block access” checkbox in your TIA portal project.
Standard S7-200/300/400/1200 LOGO! item Syntax
Address Syntax
Input, Output, Flag Memory Types
<.bit>DB Memory Type
DB,
DB, <.bit>where ranges from 1 to 65535.