Behavior of an industrial system is communicated to an operator through graphical representations of gauges having a scale and pointer that represent parameters of the system. The pointer is positioned relative to the scale to indicate a measured parameter value. In various embodiments, when the parameter value is within operating limits, a first range is displayed that corresponds to the operating limits. When the parameter value has gone outside of the operating limits, the displayed range is changed, in various embodiments, to a second range that goes beyond the operating limits. A local visual indicator is also displayed, in particular embodiments, when the parameter value has gone outside of the operating limits. In a number of embodiments, such a tool can help to make the operator better aware of abnormal parameters of the system for early detection and correction of problematic operating conditions.
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