Multi-state behaviors

With multi-state behaviors, you can transform certain objects on a display into visual alarms. Objects configured with multi-states alter their color based on changing data values. Multi-state configuration assigns specific colors to ranges of values, corresponding to process states. When the data value of a multi-state object enters the assigned range, its color changes to indicate a different state.

You configure the number of value ranges (states), the maximum for each range, and the color for each range. When setting the color, you can also set the object to blink. When the data value enters a different value range, the multi-state object changes its color to match the configuration. You can make a multi-state object invisible by setting the color to the display's background color. You can also assign a color for data in bad status (for example, a maximum permissible level). The site administrator can set the default color palette and the default color for data in bad status. For more information, see the PI Vision Installation and Administration Guide.

For example, suppose you have a multi-state object that has two states. State 1 has a value range from 0 to 50 assigned the color blue. State 2 has a range from 50 to 100 assigned the color red. When the value reads 50 or below, the symbol appears blue; above 50, the symbol appears red.

Note: To configure multi-state behaviors for limit attribute traits, at least two attribute traits must be enabled in PI System Explorer. Note that the minimum and maximum limit attribute traits override the zero and span PI point attributes, respectively, which are set in PI System Management Tools (SMT). For more information, see the PI Server topic Attribute traits.

The following objects support multi-state behaviors:

• Value symbols

• Table symbols

• Asset comparison table symbols

• Time series table symbols

• Gauge symbols

• Bar chart symbols

• Event tables

• Shapes

• Images

• Text

  Note: If digital states or enumeration sets used in a multi-state are changed, you may see stale States on a display until you Refresh. To check whether you need to Refresh the Multi-State Source for a symbol, right-click it and then click Configure Multi-state. If you see a Refresh button after the list of States, the Multi-State Source data for this symbol is outdated. Click Refresh to incorporate the latest available State names into the symbol.

Videos

For more on this topic, watch the following video:

https://www.youtube.com/watch?v=EXih8i7d3oU