<Appendix 3.
Arithmetic (Ar) Block>
255
IM 01E21A02-03EN
Appendix 3. Arithmetic (AR) Block
TheARblockswitchestwomaininputsofdi󰀨erentmeasurementrangesbumplesslyand
combinestheresultwiththreeauxiliaryinputsthroughtheselectedcompensationfunction(10
types)tocalculatetheoutput.
A3.1 Functional Block Diagram
The diagram below shows the functional block diagram of the AR block.
FA0301.EPS
The AR block is divided into three sections to explain each function.
1. Input section...Makes a go/no-go decision on the use of an input value, switches the
range, and determines the PV status.
2. Computation section...Makes calculations through ARITH_TYPE.
3. Output section...
Applies GAIN multiplication and BIAS addition to the calculated result to perform
limitation processing for output.
* The range extension function compensates the IN and IN_LO input values and realizes
smoothinputswitchingwhentwodeviceswithdi󰀨erentrangesareconnected.
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