Hi everybody , i'm working on an Electronic Cash register ECR 258+, I need to access the sale database from its memory from RS232c prot, & also track customers. plz help me how to do it. Say any language , like java , VB, c#, or VBA. I would like to know the hex code or instructions that works in serial port communication.if any of u have any experience , plz help me. my email id: [email protected]