When enabled, some embedded interfaces can help the
user to interact with the Trend Control during runtime. This
section describes these interfaces:
- Toolbar: The
commands available in the embedded Toolbar are described in the
following table:
Command Icon Description Activation Tag Run 
Sets the Trend to the Play Mode. In this mode, the X axis is continuously updated (Online Mode). This option is disabled (grayed out) when the trend is already in Play Mode. 0 = Play Mode on
1 = Play Mode off
Stop 
Sets the Trend to the Stop Mode. In this mode, the X axis is not continuously updated (History Mode), so the user can visualize history data in a frozen period of time. This option is disabled (grayed out) when the trend is already in Stop Mode. 0 = Stop Mode on
1 = Stop Mode off
Period 
Launches an embedded dialog, where the user can modify the X axis scale main settings. When the Activation Tag changes value (e.g., toggles), this command is executed. Window Zoom 
Allows the user to click on the Trend area and drag the cursor to select the area that must be visible when the cursor is released. This option is disabled (grayed out) when the Multiple Section option (for the Y scale) is active. Horizontal Zoom 
Allows the user to click on two points in the Trend area, defining the horizontal scale that must be available. Vertical Zoom 
Allows the user to click on two points in the Trend area, defining the vertical scale that must be available. This option is disabled (grayed out) when the Multiple Section option (for the Y scale) is active. Zoom In 
Allows the user to zoom in (display half of the current X and Y scales) each time they click on the Trend area. 0 = Zoom In on
1 = Zoom In off
Zoom Out 
Allows the user to zoom out each time they click on the Trend area. 0 = Zoom Out on
1 = Zoom Out off
Cancel Zoom 
Cancels the current Window, Horizontal or Vertical Zoom and returns the Trend display to its original scale. When the Activation Tag changes value (e.g., toggles), this command is executed. Legend Properties 
Launches an embedded dialog, where the user can modify the Legend main settings. Pen Style 
Launches an embedded dialog, where the user can modify the style of the selected pen. Add Pen 
Launches a dialog, where the user can add a new pen to the Trend object. Remove Pen 
Removes the selected pen from the Trend display. Multiple Sections 
Switches the Y scale to Multiple Sections (a section for each pen) or Single Section (all pens share the same Y scale section). 0 = Multiple Sections on
1 = Multiple Sections off
Cursor 
Turns the cursor (ruler) to visible or hidden. 0 = Cursor on
1 = Cursor off
Auto Scale 
Changes the Y axis scale to fit all values from the pens that are currently being monitored. When the Activation Tag changes value (e.g., toggles), this command is executed. Print 
Prints the current state of the Trend display. (Historical data are not printed.) When the Activation Tag changes value (e.g., toggles), this command is executed. - Legend: The
commands available in the embedded Legend are described in the
following table:
Command Icon Description Selection 
Launches a dialog, where the user can replace the data point associated with the selected pen on the legend Remove 
Removes the selected pen from the Trend object Hide 
When checked, the selected pen is visible; otherwise, it is hidden. Pen Style
Launches an embedded dialog, where the user can modify the style of the selected pen. Scale 
When this box is checked, the Y axis scale is visible; otherwise, it is hidden. The scale can be hidden only when the Multiple Sections option is off. - Scroll bar: Using the Scroll bar, the user can slide through the X axis values, according to the period configured for this scale.
- Time bar: Using the Time bar, the user can modify the Duration, as well as the Start Date/Time and/or the End Date/Time, for the data displayed on the object. Changing these values will affect the tags associated with the X axis scale (if any).