Fail-Safe Blocks
Fail-Safe Systems
A5E00085588-03
8-115
8.13 Arithmetic Blocks with the REAL Data Type
Block Description
F_ADD_R Addition of two REAL values
F_SUB_R Subtraction of two REAL values
F_MUL_R Multiplication of two REAL values
F_DIV_R Division of two REAL values
F_ABS_R Calculation of the absolute value
F_MAX3_R Maximum of three REAL values
F_MID3_R Medium of three REAL values
F_MIN3_R Minimum of three REAL values
F_LIM_R Asymmetrical limiter of REAL values
F_SQRT Calculation of the square root
F_AVEX_R Mean value of a maximum of nine REAL values
F_SMP_AV Sliding mean value
8.13.1 F_ADD_R
Function
This block adds the inputs and outputs the sum at the output.
OUT = IN1 + IN2
I/Os
Name Data Type Explanation Default
Inputs:
IN1 F_REAL Addend 1 0.0
IN2 F_REAL Addend 2 0.0
Output:
OUT F_REAL Sum 0.0
Error Handling
If the operation generates an invalid REAL number the event will be recorded in
the Diagnostic Buffer.
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