Common Driver Widgets

In order for operators with little or no programming knowledge to see if problems may be occurring with a driver, and acquire some insight into what the problems are, graphics are required for VTScada communication drivers. These graphics can be drawn anywhere on the pages of the VTScada application.

The ShowStats, ShowComm, CommIndicator, SetStats, and ErrorMsg widgets are used for graphical display. ShowStats, ShowComm, and CommIndicator are graphics modules, while SetStats and ErrorMsg are support modules that provide the statistics and error messages that are displayed. All of these modules can be customized to suit each individual type of I/O device. For example, additional statistics and information can be included in the ShowStats and ShowComm windows, however, the standard displays are generally sufficient.