5.1 Type Conversion Functions
5.1.28 String type
→
word (signed), double word (signed) type conversion
5-87
5
APPLICATION
FUNCTIONS
STR_TO_INT(_E),
STR_TO_DINT(_E)
STR_TO_INT(_E), STR_TO_DINT(_E)
Operation Error
An operation error occurs in the following cases.
• The input value is other than '30
H' to '39H', '20H', '2DH', and '00H' of ASCII code.
(Error code: 4100)
• The input value is outside the following ranges of ASCII code. (Error code: 4100)
STR_TO_INT(_E): '−32768 to 32767'
STR_TO_DINT(_E): '−2147483648 to 2147483647'
Program Example
(1) The program which converts string type data input to into word (signed) type data, and
outputs the operation result from .
(a) Function without EN/ENO (STR_TO_INT)
[Structured ladder]
[ST]
g_int1 := STR_TO_INT (g_string1);
(b) Function with EN/ENO (STR_TO_INT_E)
[Structured ladder]
[ST]
g_bool3 := STR_TO_INT_E (g_bool1, g_string1, g_int1);
(2) The program which converts string type data input to into double word (signed) type data,
and outputs the operation result from .
(a) Function without EN/ENO (STR_TO_DINT)
[Structured ladder]
[ST]
g_dint1 := STR_TO_DINT (g_string1);
s
d
s
d
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