Rockwell-automation 57C610 Enhanced Basic Language, AutoMax Manual de usuario descargar pdf (Pagina 94)

7Ć6

7.16 RIGHT$ Function

Format:

RIGHT$(string,str_length)

where:

string can be a string variable or expression.

str_length is the number of characters to take from the right side

of the string (expression) in parameter 1.

The function returns a substring that is equal to

`strĆlength'(parameter 2) of the rightĆmost characters of the string or

string expression (parameter 1):

SUB_STRING$ = RIGHT$(`ABCDEFG',4) 

##"has the value DEFG)

STR1$ = '12345'

SUB_STRINGS$ = RIGHT$(STR1$ + 'ABC',6)

" 

7.17 MID$ Function

Format:

MID$(string, start, end)

where:

string can be a string variable or expression.

start is the starting character position of the substring.

end is the ending character position of the substring.

The function returns a substring from within another string. The

three parameters are, respectively, the string to operate on, the

starting character position, and the ending character position. The

substring is then taken from those two inclusive positions:

SUB_STRING$ = MID$(`ABCDEFG',2,3) _

  ##!

STRING$ = BIGLONGSTRING"

SUB_STRING$ = MID$(STRING$,3,7)

 ##"!

7.18 VAL% Function

Format:

VAL%(string)

where:

string can be a string variable or expression.

The function returns the integer value of a string in an integer format.

If the string is not in an integer format, the returned value will be zero

and an error is logged:

STR_V

AL% = V

AL%(`123' + `74')



 """"""""""

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Rockwell-automation 57C610 Enhanced Basic Language, AutoMax Manual de usuario Pagina 94

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