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To configure this rule, go to the Indicators tab of the settings panel of the OPC DA State rule object’s settings panel object. Description of parameters is given in the table. It is possible to specify at most You can specify up to 10 indicator states.
Parameter | Description |
Rule # |
Rule number | |
V. min, V. max | Range of element values for the rule |
S. min, S. max | Range of values |
that the indicator will |
accept according to the rule | |
Usage | Activate the interval |
Red, Green, Blue | Specify the color of the indicator |
according to the RGB model |
| Note | ||
|---|---|---|
| ||
| If the value of an element is included in falls into several intervals at once, the indicator takes accepts a value corresponding according to the rule with the smallest number among the suitable ones. |
To save the changes, click the Apply button.
Indicator and its value are displayed in on the map (see the see Working with OPC-server elements of Data Access standard on the map section).
Consider the working Let's consider the work of this rule through the on an example.
There are three
...
intervals of element values depending on which the indicator takes
...
a certain proportional value and color. To
...
calculate the
...
exact value of the indicator, use the following formula:
...
where V is the exact value of the element.
For example, if V=1300, then the indicator value
, the indicator color will be is red.
If V=2200, then the indicator value
(approximated),
the indicator color will be is blue.
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