The Status Change Rule of Modbus Indicator is configured as follows:

  1. Go to the Indicators tab (1) on the Modbus Rule object settings panel.

  2. In the V. min (2) and V. max (3) columns, specify the register value range for which this condition will apply.

    If the register value falls into several ranges at once, then the indicator will take the value according to the condition with the smallest serial number of all the suitable conditions.


  3. In the S. min (4) and S. max (5) columns, specify the indicator value range which it will take depending on the register value range.
  4. In the Color column (6), select the indicator colors using the Windows default color palette.
  5. Click the Apply button (7) to save the changes.

The precise indicator value is calculated according to the following formula:

, where V is the precise item value.

The Status Change Rule of Modbus Indicator is now configured.