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Conditions of changing indicator state are set in the Indicators tab of You can set the conditions for changing the state of indicator on the Indicators tab on the settings panel of of the SNMP RuleRule object. Description Description of parameters is presented in the following table. It is possible to specify not more than You can specify up to 10 states of indicator.
Parameter |
Parameter description |
Rule # |
Serial number of a condition | |
V. min, V. max | Range of channel values for a condition |
S. min, S. max | Range of values which indicator will take according to the rule |
Use | Activate the interval |
Red, Green, Blue | Specify the color of indicator by the RGB model |
| Note | ||
|---|---|---|
| ||
If the value of a channel gets falls into multiple intervals, then the indicator possesses accepts the value according to the condition with the smallest serial number from the relevantsuitable ones. |
To save the changes, click the the Apply button.
Indicator and its value are displayed in on the map (see the see Working with the OPC-server elements of the Data Access standard device channels on the map section).
Consider the working Let's consider the work of this rule through the on an example.
There are three rules intervals of element channel values depending on which the indicator takes the defined a certain proportional value and color. To count the correct value of the indicator use , the following formula is used:
where where V – is exact value of the an element.
For example, if the channel takes the value V=1300, then the indicator value , the color will be value
its color is red.
If the channel takes the value V=2200, then the indicator value
value (approximated), the color will be
its color is blue.
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