Object Viewer User's Guide - Platforma Internetowa ASTOR

22 Chapter 3 Modifying Attribute ValuesCategory PropertyAn attribute’s Category property determines if the attributeis writable. The only categories that you can write to are:• Writeable_U• Writeable_US• Writeable_UC• Writeable_USC• Writeable_UC_Lockable• Writeable_USC_LockableThe letters included in the Writable categories mean thefollowing:LetterUSCDescriptionUserSets are OK. You can modify these in theObject Viewer.SupervisorySets are OK. You can modify theseonly with an application function. You cannotmodify them in the Object Viewer.Configtime time sets only. You can modify theseonly when you are configuring the object. Youcannot modify them in the Object Viewer.Value PropertyTimestamp PropertyYou can only modify the value property of an attribute shownin the Value column. The data type of the attribute shown inthe Type column indicates the kind of value you can assign tothe attribute.You can modify the timestamp of an attribute shown in theTimestamp column. The Has Quality/Timestamp column showswhether an attribute has a timestamp associated with itsvalue.Object Viewer User’s Guide