Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 81

Processing details
■Engineering value conversion processing
This function block converts a value in percentage (%) input from the input variable IN into an engineering value, such as
temperature and pressure and outputs the result from the output variable OUT_.
Output(OUT_)
RH
RL
0 50
IN
OUT_= {(RH-RL)× }+RL
100
RH: Engineering value high limit
RL: Engineering value low limit
IN: Input value (0 to 100%)
OUT_: Output value
This expression is also applicable for RH  RL.
Operation error
Error code Description
(SD0)
3400H An invalid operation (such as division by zero) is performed.
3402H Input data (IN) or operation constant (RH, RL) is a subnormal number or NaN (not a number).
3403H An overflow has occurred.
Input(IN)
100(%)
5 CORRECTION OPERATION
5.4 Engineering Value Conversion (M+P_ENG)
5
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