Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 83

Processing details
■Engineering value inverse conversion processing
This function block converts an engineering value input from the input variable IN, such as temperature and pressure, into a
value in percentage (%) and outputs the result from the output variable OUT_.
Output(OUT_)
100(%)
50
0
RL
IN-RL
OUT_(%)= ×100
RH-RL
RH: Engineering value high limit
RL: Engineering value low limit
IN: Input value
OUT_: Output value (0 to 100%)
• 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)
RH
5 CORRECTION OPERATION
5.5 Engineering Value Inverse Conversion (M+P_IENG)
5
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