Web Human Machine Interface operations3.General information about WebHMI3.1.The Web Human Machine Interface (later referred to as WebHMI) interface consists ofdifferent views, a menu bar, and a tool bar.You can choose between views by clicking the tabs on the left:• Substation: Shows the substation structure.• Communication: Shows the communication structure.• Users: (Only administrator) Shows the user information. The administrator canmanage users in this view.• Settings: (If not administrator) Shows the user information. The user can changethe password in this view.The Menu bar contains the following functions:• General: Shows device information.• Single Line Diagram: Shows the Single Line Diagram view.• Events: Shows the events list.• Alarms: Shows the alarms list.• Data historian: Shows the data historian information. (Optional feature)• Help: Shows the WebHMI help.• LogoutPredefined user account3.2.The predefined COM600 user account also works as a WebHMI administrator useraccount. It’s not possible to modify it in any way from the WebHMI though. It cannotbe deleted, it’s not possible to change its user group and its password must always bechanged from SAB600.User management3.3.Access permissions3.3.1.COM600 has the following user levels:• Viewer = Only allowed to view• Operator = Authorized to make operations• Engineer = Allowed to change IED parameters, but no operation rights• Administrator = Full accessThe administrator can add users and define access rights with the User Managementtool.121MRS756705COM600 series 5.1Operator's Manual