Logarithm to the base of 10
![](files/Common/function%20blocks/Funktionsbausteine%20DE/Numerik/Logarithmus%20Basis%2010_FB.png)
This function block computes the common logarithm to the base 10 from the absolute value of the input signal X. The result is presented at the output Y.
Operation
![](files/Common/function%20blocks/Funktionsbausteine%20DE/Numerik/Logarithmus%20Basis%2010_Formel.png)
Signals
Name | I/O | Type(s) | Function |
---|---|---|---|
X | I | FLOAT | Operand |
Y | O | FLOAT | Result |
Comments
The function sets the output Y to -3.4E38 if the value X is zero.