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.. <% set key = ".fld-Modbus.fld-POUs.CRC7Bit" %>
.. _`.fld-Modbus.fld-POUs.CRC7Bit`:
.. <% merge "object.Defines" %>
.. <% endmerge  %>


.. index::
   single: CRC7Bit

.. _`CRC7Bit`:

CRC7Bit (FUN)
-------------

FUNCTION CRC7Bit : UINT



.. <% merge "object.Doc" %>

Name             : CRC7bit (CRC16)
 + Date          : 20015-03-24
 + Description   : Calculate the Checksum from a Byte Array

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.. <% merge "object.iotbl" %>



InOut:
    +--------+---------+-----------------------------------+---------------------------------------+
    | Scope  | Name    | Type                              | Comment                               |
    +========+=========+===================================+=======================================+
    | Return | CRC7Bit | UINT                              |                                       |
    +--------+---------+-----------------------------------+---------------------------------------+
    | Input  | buf     | POINTER TO ARRAY [0..255] OF BYTE | Input buffer                          |
    +        +---------+-----------------------------------+---------------------------------------+
    |        | start   | UINT                              | Byteposition to start CRC-calculating |
    +        +---------+-----------------------------------+---------------------------------------+
    |        | cnt     | UINT                              | Bytes to calculate                    |
    +--------+---------+-----------------------------------+---------------------------------------+

.. <% endmerge  %>

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