Plug-ins are software programs used to configure, monitor and control 300-series controllers.

Plug-ins ensure error-free configuration of a controller's I/O points, schedule, alarms, trends, and application, using a familiar point-and-click interface.

Plug-ins include on-line help to allow instant access to detailed technical explanations of controller operation and configuration options.

Device Viewer plug-ins provides all the important information about controller operation on one interface. Using a Device Viewer plug-in, controller operation can be monitored and I/O points and application variables can be overridden.

Trend Log Viewer plug-ins present a graphical display of the latest data collected by controller.

Plug-ins are launched from LNS-based software applications such as Circon's Visual Integrator 3 or Network Integrator 3, or any LNS-compatible network management tool.