101 (136)
•
Type (Required)
The Type-character is required and determines the basic representation as follows:
Type
Input
Argument Data Type
c
Single character
CHAR
d
Accepts a signed decimal integer
SINT8
SINT16
SINT32
i
Accepts a signed or unsigned decimal integer. May be given
as decimal, hexadecimal or octal, determined by the initial
characters of the input data:
Initial Characters: Format:
0x Hexadecimal
0: Octal
1... 9: Decimal
SINT8/UINT8
SINT16/UINT16
SINT32/UINT32
u
Accepts an unsigned decimal integer.
UINT8
UINT16
UINT32
o
Accepts an optionally signed octal integer.
SINT8/UINT8
SINT16/UINT16
SINT32/UINT32
x, X
Accepts an optionally signed hexadecimal integer.
SINT8/UINT8
SINT16/UINT16
SINT32/UINT32
e, E,
f,
g, G
Accepts an optionally signed floating point number. The input
format for floating-point numbers is a string of digits, with
some optional characteristics:
–
It can be a signed value
–
It can be an exponential value, containing a decimal ra-
tional number followed by an exponent field, which con-
sists of an ‘E’ or an ‘e’ followed by an integer.
FLOAT
n
Consumes no input; the corresponding argument is an integer
into which scanf writes the number of characters read from
the object input.
SINT8/UINT8
SINT16/UINT16
SINT32/UINT32
s
Accepts a sequence of nonwhitespace characters
STRING
[scanset]
Accepts a sequence of nonwhitespace characters from a set
of expected bytes specified by the scanlist (e.g
‘[0123456789ABCDEF]’)
A literal ‘]’ character can be specified as the first character of
the set. A caret character (‘^’) immediately following the initial
‘[’ inverts the scanlist, i.e. allows all characters except the
ones that are listed.
STRING
%
Accepts a single ‘%’ input at this point; no assignment or con-
version is done. The complete conversion specification should
be ‘%%’.
-
•
* (Optional)
Data is read but ignored. It is not assigned to the corresponding argument.
•
Width (Optional)
Specifies the maximum number of characters to be read
•
Modifier (Optional)
Specifies a different data size.
Modifier
Meaning
h
SINT8, SINT16, UINT8 or UINT16
l
SINT32 or UINT32
Anybus
®
CompactCom
™
40 EtherCAT
®
Network Guide
SCM-1202-034 1.1