Cursor/Delta/Zoom/Annotate Modes (version 25)

The mouse icon at the top of the chart allows the user to switch between 4 different modes:

• Cursor
• Delta
• Zoom
• Annotate

Cursor/Delta Mode

This is the default mode that will display the cursor's value (and any other parameters that are enabled through the Cursor Options menu) when moving the cursor across the screen. Starting in v25.2, a mixed Cursor/Delta mode was introduced that will allow the user to find a delta between the end and start value by performing a click-and-drag across the screen without having to select the Delta mode.

Delta Mode

In this mode, the user can click-and-drag to find the difference between the stop and start of the interval selected. This difference can be left to right, or right to left.

• Delta = [cursor end value] - [cursor start value]

The Delta mode is only necessary if using a touch screen. Otherwise, the user can find a delta when in Cursor mode.

Zoom Mode

In this mode, the user can click-and-drag to zoom in to a particular time frame. When doing so, the interval on the time bar will update with the new time range. The user can continue to zoom in using the click-and-drag method, or click the "back" button next to the time interval to go back to the previous time interval.

Annotate Mode

In this mode, the user can click on a trend to add an annotation. These annotations are attached to the tag and stored in the Historian along with an audit trail of who created it and at what time. Since they are attached to the tags, the annotations will appear in any chart containing those tags. They are not specific to a chart. The user can then DELETE or UPDATE the annotations as needed.