EZware/EBPro can read/write to tags that use the STRING Data Type. The default STRING Data Type in RSLogix5000 has two elements: A DINT that is used to record the length of the character string, and a SINT data array that stores the characters (maximum length is 82 bytes).
Although you can configure your HMI to write to a STRING tag, EZware/EBPro does not automatically update the length of the characters. When configuring an ASCII object in EZware/EBPro to read/write to a STRING tag, you must:
Refer to Section 9B in the CompactLogix, ControlLogix, DriveLogix (EtherNet/IP) - Free Tags Controller Info Sheet for more information on how to display a string with variable length.