Step 1: Select Edit > Find, or press Ctrl + F to find content that matches the find criteria. The user can find element text, read address, and write address or all addresses on the current screen or all screens. Step 2: Fill in Find What. This field is where the user enters the word or phrase that the user is looking for. For example, if you want to find the register in PLC D100, enter D100 and the output window will display all matching words or phrases. Likewise, if you want to find the Register in DOPSoft in HMI, just enter $xx in Find What.