how to change the range of an FFB instrument process value in ABB 800xA DCS system
In FF Builder,
1. In Configuration mode change the range in AI Block.
2. Open the respective Signal properties from FF Application & "Uncheck" Host signal & Apply then "Check" again & press Apply button.
3. Do the Plausibilty check for respective LD & HSEHOSTCI860.
4. Go to Commissioning mode. It will save & update in PPA. Download the Instrument & segment.
5. In control structure check wheather its uploaded properly(Green color indiaction). If not exit the FF builder (subnet should not be reserved) & do FF Upload from Control Structure.
5. Now download the controller from control builder.