en:software:qview:qview_6:qcl_library:vr10asctosby

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en:software:qview:qview_6:qcl_library:vr10asctosby [2017/02/06 17:55] – created qem103en:software:qview:qview_6:qcl_library:vr10asctosby [2019/08/29 17:01] (current) – external edit 127.0.0.1
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 +====== VR10AscToSBy ======
 +
 +**V = **//Variables//
 +
 +**R = **//Reading functions//
 +
 +ASCII  ----> SIGNED BYTE
 +
 +The VR10AscToSBy function __converts an Ascii variable type in an Signed Byte type (byte with sign)__.
 +
 +===== IMPLEMENTATION =====
 +
 +**VR10AscToSBy (array, index, return, errcode)**
 +
 +Parameters:
 +
 +^IN/OUT^VARIABLE TYPE^EXAMPLE NAME^DIM^^
 +|  IN  |  ARRGBL  |  array  |  B  |Array containing the data to be converted (must be declared with at least "index + 1" items)|
 +|  IN  |  GLOBAL  |  index  |  L  |Index of the array element at the beginning of the data|
 +|  OUT  |  GLOBAL  |  return  |  B  |Data value converted|
 +|  OUT  |  GLOBAL  |  errcode  |  F  |Variable that indicates a possible error on function|
 +
 +==== Errcode ====
 +
 +After calling the function, 'errcode' can take certain values, the meaning of these values is summarized below:\\
 +0: No error\\
 +1: Error: ASCII value is not within 48÷57 or 65÷70 
 +
 +=== Example ===
 +
 +Transforms the value -5 (ASCII) in an signed byte value
 +
 +<code QCL>
 +index = 1
 +array[1] = 49
 +array[2] = 52
 +
 +VR10AscToSBy (array, index, return, errcode)
 +
 +;On the return data you will find :
 +; return = 20    (14H)
 +</code>
 +
 +=== Note ===