...
Processing of a new value of the I/O tag is performed withing within the call of PointNewValue call-back function of the D2000 KomAPI interface.
...
- Conversion to technical units (None / Linear conversion / Polynomial conversion / Pt 100 conversion). The value of CI type is converted to a real number in the floating-point format and after the conversion to technical units, it is converted in a saturation way back to the integer form.
- Value filtering (None / First order filter / Out of limits values are undefined / Value kept always in limits).
- Filtering based on the defined value absorption.
- Filtering based on the defined dead band.
- Value limits are checked.
...
- Conversion to technical units (None / Linear conversion) in case of TIR type.
- Value filtering (None / First order filter / Out of limits values are undefined / Value kept always in limits) in case of TIR type.
- Filtering based on the defined dead band in case of TIR type.
- Value limits are checked in the case of TIR type.
The value is ignored if the tag is in default value mode. For further information see the Default value chapter.
...
- Conversion to technical units (None / Inverse linear conversion). The value of CO type is converted to a real number in the floating-point format and after the conversion to technical units, it is converted in a saturation way back to the integer form.
- If the "Transient" status bit of the value is not set, then the value limits check will be performed.
...
- Conversion to technical units (None / Inverse linear conversion) in case of TOR type.
- Value limits are checked in the case of a TOR type.
The value is ignored if the tag is in default value mode. For further information see the Default value chapter.
...
- If the new value is valid, then the check of the value is executed. If the previous value differs from the new value, the "NoAckValue" status bit is set.
- Check of status flags.
- Check of limits.
- Check of process alarm change.
- If the ST_TIME_CHANGE flag is set in the call of PointNewValue function of the D2000 KomAPI interface, then the check of the time of previous and new value will be executed.
...