# Chart ActiveX control

The Chart ActiveX control utilizes user-defined data type (UDT) capability in Logix controllers to create a data structure. The control uses two UDTs, Chart, and DataSeries, to contain the data and datasets used to render the chart at run time.

Important: | Do not change the UDT member names. It is recommended to use the default naming convention to simplify troubleshooting. Failure to use the exact UDT member names will prevent the Chart ActiveX control from drawing data at run time. A Chart ActiveX control may slow the display load time at run time due to the UDT.

The Chart ActiveX control supports up to eight data series plotted against one fixed data series. You can use the control in multiple applications. For example, you can use the control to plot a current process variable and a variable from another process against a known value.

The Chart ActiveX control has the same functionality on a Windows desktop, and a MobileView, PanelView Plus 7 or PanelView Plus 6 terminal.

When using the Chart ActiveX control on a PanelView Plus 7 or PanelView Plus 6 terminal:

- Only the pens with solid and dashed line styles are supported. Any other style will show as a dashed line.
- Diagonal up and diagonal down shading directions of the gradient style are not supported.

## See also

Options on the Pens tab of the ME Chart Control Properties dialog box

Chart UDT members

DataSeries UDT members