history-HistoryPointListItem

Each HistoryPointListItem links to a single history extension and is configured in the Add Item window or in the HistoryPointListItem Property Sheet. This component is available in the history module.

Properties you can configure include the following.

Name Value Description
History Extension Ord The Ord to the history extension of the control point you wish to view. This MUST be the history extension and NOT the control point or its corresponding History component.
Display On Startup true (default), false Indicates whether or not to automatically display the chart for this item when the view first comes up.
Start Time 00000h 00m Indicates how much of the collected history data you wish to view. The time that is entered in this property will be subtracted from the current time to get the initial history data.
 NOTE: The following conditions apply:If no data is found within the given Start Time the LAST collected value is retrieved for the item.If the Start Time is 0 hours 0 minutes ALL collected history values is retrieved for the item. 
Sample Rate Auto, Fixed: 00h 00m 00sCov The rate at which to sample the "live" data. Auto: follows the interval defined in the history extension configuration. Fixed: follows a defined interval that is specified by the user in terms of hours, minutes, and seconds. COV: specifies that updates are plotted whenever there is a change of value.
Minimum Value Range Auto, Fixed 0.00 (default) The minimum value to display on the value axis. This only applies to numeric points (Booleans and Enums do not use this property). Auto: uses the minimum value from the data collected. Fixed: uses the value specified by the user.
Maximum Value Range Auto, Fixed 100.00 (default) This value is the maximum value to display on the value axis. This only applies to numeric points (Booleans and Enums do not use this property). Auto: uses the maximum value from the data collected. Fixed uses the value specified by the user.
 NOTE: If Min Value Range and Max Value Range are Fixed AND have the same values charts may share the value axis. If these two conditions do not exist, additional value axes may be added to the chart, as needed. 
Line Color Null (default) This value specifies the desired color for the plot line. Click on the property editor to invoke the Color Chooser.
Pen Line weight: 1.0 (default)Line type: Solid (default), Dotted, DashedCap type: Cap Butt (default), Cap Round, Cap SquareCorner type: Join Miter (default), Join Bevel, Join Round This value specifies the line-weight and type to use for the plot line.