The description field will store up to 65,500 characters, but this will exceed the practical limits of what can be displayed on-screen. For installations that use the Alarm Notification System, the description will be spoken when identifying the tag that caused the alarm. Tag descriptions are displayed in the tag browser, in the list of tags to be selected for a report and also on-screen when the operator holds the pointer over the tag’s widget. While not mandatory, the description is highly recommended. The description field provides a way to give each tag a human-friendly note describing its purpose. An area definition will exist as long as any tag uses it and will stop existing when no tag uses it (following the next re-start). There is no tool to remove an area name from VTScada since such a tool is unnecessary. Re-typing an existing area name is not recommended since a typo or misspelling will result in a second area being created. To use an existing area, use the drop-down list feature. To define a new area, type the name in the field. You may define as many areas as you wish and you may leave the area blank for some tags (note that for Modem tags that are to be used with the Alarm Notification System, it is actually required that the area field be left blank).
#Kepserverex iec 104 serial#
For serial port or Roster tags, you might configure the Area property according to the purpose of each tag, such as System or Communications. a station or name of a landmark near the location of the I/O device). You might also consider naming the Area property for the physical location of the tag (i.e.
#Kepserverex iec 104 driver#
To use the area field effectively, you might consider setting the same Area for each I/O driver and its related I/O tags to group all the tags representing the equipment processes installed at each I/O device. In the case of a child tag, the field background will turn orange to indicate that you have applied an override. Naturally, you can change any tag's area as required. When working with Parent-Child tag structures, the area property of all child tags will automatically match the configured area of a parent. Filter tag selection by area when building reports.Filter the alarm display to show only certain areas.Limit the number of tags loaded upon startup.
You may right-click on the tag's name to add or remove a conditional start expression. If the tag is a child of another, the parent names will be displayed in a separate area before the name field. Uniquely identifies each tag in the application. The ID tab of every tag includes the same common elements: Name, Area, Description, and Help ID.
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