Every now and then, you may\u00a0need to edit a tag in your system after it has been fetched from the historian. You can edit\u00a0a tag using Server Management or the Import\/Export spreadsheet.<\/p>\n
Server Management<\/span><\/h2>\nIn P2 Server Management, editing a tag is\u00a0performed through the Configuration ![\"configurationicon\"](\"https:\/\/oihelp.corporate.ifs.com\/help\/wp-content\/uploads\/2015\/09\/configurationicon.png\")
\u00a0menu option:<\/p>\n
Prerequisite Step<\/strong>: Creating a Tag Datasource<\/a><\/p>\n1. Open P2 Server Management, and click the Configuration<\/strong>\u00a0icon.\u00a0<\/p>\n2. Click Datasources<\/strong>.<\/p>\n3. Below the Create New Datasource<\/strong> button, click the datasource containing the tag you want to edit.<\/p>\n![\"datasources-config\"](\"https:\/\/oihelp.corporate.ifs.com\/help\/wp-content\/uploads\/2016\/07\/datasources-config.png\")
<\/a>\u00a0<\/p>\n4. When you hover over a tag in the list, an edit ![\"editicon\"](\"https:\/\/oihelp.corporate.ifs.com\/help\/wp-content\/uploads\/2016\/03\/editicon.png\")
\u00a0icon appears. Click this edit icon for the tag you want to edit.\u00a0<\/p>\n
![\"datasources-edittag\"](\"https:\/\/oihelp.corporate.ifs.com\/help\/wp-content\/uploads\/2016\/07\/datasources-edittag.png\")
<\/a><\/p>\n5. Edit the fields as required.<\/p>\n
You are able to edit the following fields:<\/p>\n
\n- Name<\/strong>:\u00a0Note that the name cannot contain reserved characters.<\/li>\n
- Description<\/strong>: \u00a0For the description, it's often useful to provide a broader explanation\u00a0of what the tag represents.<\/li>\n
- Native Name<\/strong>: \u00a0The unique name of the tag in its originating system.\u00a0Note that the native name cannot contain reserved characters.<\/li>\n
- Display Range<\/strong>:\u00a0Allows consuming applications (e.g.\u00a0P2 Explorer Trend) to tell what the expected minimum\/maximum value is for a tag. This information may be imported by the adaptor.<\/li>\n
- Default Timebase<\/strong>: The time range that will be used by default when the tag is displayed in consuming applications, such as being added to a P2 Explorer trend. The default is 12 hours. This property was introduced in version 4.4.5.\u00a0<\/em><\/li>\n
- Interpolation<\/strong>: The type of interpolation to assume for the data returned by this tag. This affects how the data is displayed on a chart or trend. The default is Continuous. This property was introduced in version 4.4.5.<\/em>\n
\n- Continuous:<\/em> Use for continuous data, such as temperature, where you can extrapolate forward from a value.<\/li>\n
- Discrete:<\/em> Use for discrete data points, such as laboratory data, where the result is only valid at that point in time.<\/li>\n
- Forward Extrapolated<\/em>: The tag value is extrapolated forwards over the sample interval.<\/li>\n
- Backward Extrapolated<\/em>:\u00a0The tag value is extrapolated backwards over the sample interval.<\/li>\n<\/ul>\n<\/li>\n
- Decimal Places<\/strong>:\u00a0The number of decimal places to display for the tag. An example of this being used is when the tag is displayed in the Status Tile of P2 Explorer. The default is 2. This property was introduced in version 4.4.5.<\/em><\/li>\n
- Scan Rate<\/strong>: The scan rate supplied by the historian, which specifies the frequency with which the tag is updated with live values in the data source. Consuming applications can use this to limit the range of a raw fetch on data which has a high scan rate.\u00a0This property was introduced in version 4.4.5.<\/em><\/li>\n
- Unit<\/strong>: The unit of measure for this tag. Select this from the drop-down list, which contains all units defined in the master list.\u00a0\u00a0<\/li>\n<\/ul>\n
Related: Reserved Characters & Keywords<\/a>, Creating a Master List of Units<\/a><\/p>\n![](\"https:\/\/oihelp.corporate.ifs.com\/help\/wp-content\/uploads\/2016\/07\/tag-edit-1116.png\")
<\/a><\/p>\n6. Click the Save<\/strong> button in the top right corner.<\/p>\n\u00a0<\/p>\n
Import\/Export Spreadsheet<\/span><\/h2>\nIf you want to edit tags\u00a0as part of a bulk configuration, you can use the Tag<\/strong>\u00a0and Tag Property<\/strong> tabs in the Import\/Export spreadsheet<\/a>.\u00a0<\/p>\nRequired Reading: Updating the Configuration<\/a><\/p>\nLook for the red\u00a0comment ![\"commentred\"](\"https:\/\/oihelp.corporate.ifs.com\/help\/wp-content\/uploads\/2015\/09\/commentred.png\")
\u00a0icon in the row headers, to get help with each column.<\/p>\n
DO NOT change anything in the Global Id field - this is the unique identifier for the attribute group\u00a0that allows it to be tracked across systems, and when it is renamed. It is automatically generated by the system.\u00a0<\/p>\n
Tag Tab<\/h3>\n
The screenshot below shows an example of a configured tag (click to enlarge). The fields are the same as the ones in the first step of\u00a0configuring a tag in Server Management, using the above instructions on this page.<\/p>\n
![](\"https:\/\/oihelp.corporate.ifs.com\/help\/wp-content\/uploads\/2016\/07\/tag-edit-impex.png\")
<\/a><\/p>\nNotes:\u00a0<\/p>\n
\n- The choices for Default Timebase<\/em> and Interpolation<\/em> are available from drop-down lists on those cells.<\/li>\n
- Default Timebase,\u00a0Interpolation,\u00a0Decimal Places, and Scan Rate were\u00a0\u00a0introduced in version 4.4.5.<\/li>\n<\/ul>\n
Dependencies<\/span><\/h4>\nThe Tag has dependencies on information from other tabs. Understanding these dependencies assists in resolving import errors.<\/p>\n
Read more: Understand Object Dependencies<\/a><\/p>\nDirect Dependencies<\/span><\/h5>\nThe Tag tab is directly dependent on 3 other tabs; Datasource, Unit and Digital State Set; because columns on the Tag tab directly reference columns on those tabs.<\/p>\n
\n\n\nThis column<\/strong><\/td>\nOn this tab<\/strong><\/td>\nWhy you need to pay attention<\/strong><\/td>\n<\/tr>\n\nPlain Symbol<\/td>\n Unit<\/td>\n Required by the 'Unit' column on the Tag tab.<\/td>\n<\/tr>\n \nName<\/td>\n Digital State Set<\/td>\n Required by the 'Digital State Set' column on the Tag tab.<\/td>\n<\/tr>\n \nDatasource<\/td>\n Digital State Set<\/td>\n Required by the 'Digital State Set Datasource' column on the Tag tab.<\/td>\n<\/tr>\n \nName<\/td>\n Datasource<\/td>\n Required by the 'Datasource' column on the Tag tab.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nCascading Dependencies<\/span><\/h5>\nA cascading dependency exists when a dependent tab (above) has additional dependencies. \u00a0These are the columns that you need to pay attention to:<\/p>\n
\n\n\nThis column<\/strong><\/td>\nOn this tab<\/strong><\/td>\nWhy you need to pay attention\u00a0<\/strong><\/td>\n<\/tr>\n\nDigital State Set<\/td>\n Digital State<\/td>\n References the 'Name' column on the Digital State Set tab.<\/td>\n<\/tr>\n \nName<\/td>\n Datasource<\/td>\n References the 'Datasource' column on the Digital State Set tab.<\/td>\n<\/tr>\n \nDatasource<\/td>\n Datasource Parameter<\/td>\n References the 'Name' column on the Datasource tab.<\/td>\n<\/tr>\n \nName<\/td>\n System<\/td>\n References the 'System' column on the Datasource tab.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nHere is a diagram of the dependent tabs and columns. Use this to help you visualise how the dependencies work, and ensure all required columns are completed. Use the comments inside the spreadsheet to help you.<\/p>\n
\u00a0menu option:<\/p>\n1. Open P2 Server Management, and click the Configuration<\/strong>\u00a0icon.\u00a0<\/p>\n 2. Click Datasources<\/strong>.<\/p>\n 3. Below the Create New Datasource<\/strong> button, click the datasource containing the tag you want to edit.<\/p>\n 4. When you hover over a tag in the list, an edit 5. Edit the fields as required.<\/p>\n You are able to edit the following fields:<\/p>\n Related: Reserved Characters & Keywords<\/a>, Creating a Master List of Units<\/a><\/p>\n 6. Click the Save<\/strong> button in the top right corner.<\/p>\n \u00a0<\/p>\n If you want to edit tags\u00a0as part of a bulk configuration, you can use the Tag<\/strong>\u00a0and Tag Property<\/strong> tabs in the Import\/Export spreadsheet<\/a>.\u00a0<\/p>\n Required Reading: Updating the Configuration<\/a><\/p>\n Look for the red\u00a0comment DO NOT change anything in the Global Id field - this is the unique identifier for the attribute group\u00a0that allows it to be tracked across systems, and when it is renamed. It is automatically generated by the system.\u00a0<\/p>\n The screenshot below shows an example of a configured tag (click to enlarge). The fields are the same as the ones in the first step of\u00a0configuring a tag in Server Management, using the above instructions on this page.<\/p>\n Notes:\u00a0<\/p>\n The Tag has dependencies on information from other tabs. Understanding these dependencies assists in resolving import errors.<\/p>\n Read more: Understand Object Dependencies<\/a><\/p>\n The Tag tab is directly dependent on 3 other tabs; Datasource, Unit and Digital State Set; because columns on the Tag tab directly reference columns on those tabs.<\/p>\n A cascading dependency exists when a dependent tab (above) has additional dependencies. \u00a0These are the columns that you need to pay attention to:<\/p>\n Here is a diagram of the dependent tabs and columns. Use this to help you visualise how the dependencies work, and ensure all required columns are completed. Use the comments inside the spreadsheet to help you.<\/p>\n<\/a>\u00a0<\/p>\n\u00a0icon appears. Click this edit icon for the tag you want to edit.\u00a0<\/p>\n<\/a><\/p>\n\n
\n
<\/a><\/p>\nImport\/Export Spreadsheet<\/span><\/h2>\n
\u00a0icon in the row headers, to get help with each column.<\/p>\nTag Tab<\/h3>\n
<\/a><\/p>\n\n
Dependencies<\/span><\/h4>\n
Direct Dependencies<\/span><\/h5>\n
\n\n
\n This column<\/strong><\/td>\n On this tab<\/strong><\/td>\n Why you need to pay attention<\/strong><\/td>\n<\/tr>\n \n Plain Symbol<\/td>\n Unit<\/td>\n Required by the 'Unit' column on the Tag tab.<\/td>\n<\/tr>\n \n Name<\/td>\n Digital State Set<\/td>\n Required by the 'Digital State Set' column on the Tag tab.<\/td>\n<\/tr>\n \n Datasource<\/td>\n Digital State Set<\/td>\n Required by the 'Digital State Set Datasource' column on the Tag tab.<\/td>\n<\/tr>\n \n Name<\/td>\n Datasource<\/td>\n Required by the 'Datasource' column on the Tag tab.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Cascading Dependencies<\/span><\/h5>\n
\n\n
\n This column<\/strong><\/td>\n On this tab<\/strong><\/td>\n Why you need to pay attention\u00a0<\/strong><\/td>\n<\/tr>\n \n Digital State Set<\/td>\n Digital State<\/td>\n References the 'Name' column on the Digital State Set tab.<\/td>\n<\/tr>\n \n Name<\/td>\n Datasource<\/td>\n References the 'Datasource' column on the Digital State Set tab.<\/td>\n<\/tr>\n \n Datasource<\/td>\n Datasource Parameter<\/td>\n References the 'Name' column on the Datasource tab.<\/td>\n<\/tr>\n \n Name<\/td>\n System<\/td>\n References the 'System' column on the Datasource tab.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
![\"\"](\"https:\/\/oihelp.corporate.ifs.com\/help\/wp-content\/uploads\/2016\/07\/tag-Dependencies-1.png\")
<\/a><\/p>\n![\"\"](\"https:\/\/oihelp.corporate.ifs.com\/help\/wp-content\/uploads\/2016\/07\/edit-tag-property-impex.png\")
<\/a><\/p>\n