V = Variables
R = Reading functions
BINARIO —→ SIGNED BYTE
The VR10BinToSBy function converts a binary variable type in a Signed Byte type (byte with sign).
VR10BinToSBy (array, index, return, errcode)
Parameters:
| IN/OUT | VARIBLE TYPE | EXAMPLE NAME | DIM | |
|---|---|---|---|---|
| IN | ARRGBL | array | B | Array containing the data to be converted (must be declared at least “index” elements) |
| IN | GLOBAL | index | L | Index of the array element at the beginning the data |
| OUT | GLOBAL | return | B | Data value converted |
| OUT | GLOBAL | errcode | F | Variable that indicates a possible error on the function |
After calling the function, 'errcode' can take certain values, the meaning of these values is summarized below:
0: No error
Transforms the value -5 (binary) in a in signed byte value
index = 1 array[1] = -5 VR10BinToSBy (array, index, return, errcode) ;On the return data you will find : ; return = -5