====== MID ======

{{:en:mervis-ide:35-help:mid.png}}

===== Function name =====

MID

===== ST call =====

<code st-iec>
PROGRAM MID_DEMO
   VAR
   STRING1,STRING2: STRING;
    INT1, INT2: INT;
  END_VAR
    STRING1:=MID(IN:=STRING2,L:=INT2,P:=INT1);
END_PROGRAM
</code>

===== Description =====

The function returns part of the string. The string length is given by the input variable L, the output string starts at the position P of the input string.

===== Inputs =====

|Input|Type      |Description                                                       |
|IN   |ANY_STRING|Input string                                                      |
|L    |ANY_INT   |Output string length                                              |
|P    |ANY_INT   |Position of the start of the output string within the input string|

===== Outputs =====

|Output|Type      |Description  |
|=>    |ANY_STRING|Output string|

===== Application example =====

\\
IN: HAMBURGER\\
L: 3\\
P:1\\
Output: HAM\\
\\
{{:en:mervis-ide:35-help:mid_example.png}}