Management RTU500 series Remote Terminal UnitUser Management2-16 | 1KGT 150 924 V000 1 - ABB AGFigure 22: Download password fileTo upload a before downloaded password file on another RTU the file can be dropped to the dottedarea shown in the figures above or the area can be clicked with the mouse. In the second case afile select dialog appears to choose the password file to upload. In both cases a confirmation dialogappears to confirm the upload. After confirmation with "Ok" the existing password file is replacedby the uploaded file. If successful, the new password file is active directly. A reset of the RTU500series is not necessary, but all users are logged out and a re-login is required.2.5.6 Password file harmonizationIn normal operation mode all changes described in chapter "User Management" are automaticallydistributed to all communication units and stored in the password file of each unit (no restart of theRTU required).In case of:– Adding a new communication unit into the system– Missing/faulty communication unit during the changesthe password file between different CMU's can became inconsistent.In case the password file is inconsistent between different CMU's the RTU500 series goes into arestricted mode. In this mode a login is possible but the only function available is the harmonizationof the password file. The harmonization of the password file requires administrator permissions.In restricted mode the Web server shows after login without administrator permissions the errormessage displayed below.