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To configure this rule go to the Indicators tab of the OPC DA State rule object’s settings panel. Description of parameters is given in the table. It is possible to specify at most 10 indicator states.

Parameter

Description

Rule #

Number of rule

V. min , V. max

Range of element values for the rule

S. min, S. max

Range of values which indicator will take according to the rule

Usage

Activate the interval

Red, Green, Blue

Specify the color of indicator by the RGB model

Attention!

If the value of element is included in several intervals at once the indicator takes a value corresponding to the rule with the smallest number.

To save changes click the Apply button.

Indicator and its value are displayed in the map (see the Working with OPC-server elements of Data Access standard on the map section).

Consider the working of this rule through the example.

There are three rules of element values depending on which the indicator takes the defined proportional value and color. To count the correct value of the indicator use the following formula:  where V – exact value of the element.

For example, if V=1300 then the indicator value , the color will be red.

If V=2200 then the indicator value  (approximated), the color will be blue.