Mitsubishi Electric MELSEC FX Series Structured Programming Manual page 117

FXCPU Structured Programming Manual
(Application Functions)
Error
An operation error occurs in the following cases. The error flag M8067 turns ON, and D8067 stores the error
code.
1) When any character other than "30H (0)" to "39H (9)" exists in the integer or decimal part
(Error code: K6706)
2) When "2EH (.)" exists in two or more positions inside the character string specified in
(Error code: K6706)
3) When any character other than "45H (E)", "2BH (+)" or "2DH (-)" exists in the exponent part, or when two
or more exponent parts exist
(Error code: K6706)
4) When the number of characters after
(Error code: K6706)
Program example
In this program, string data stored in a device specified in
and the data obtained by conversion is output to a device specified in
1) Function without EN/ENO(STR_TO_REAL)
[Structured ladder]
g_string1
[ST]
g_real1 := STR_TO_REAL(g_string1);
2) Function with EN/ENO(STR_TO_REAL_E)
[Structured ladder]
g_bool1
g_string1
[ST]
g_bool3 := STR_TO_REAL_E(g_bool1, g_string1, g_real1);
s
STR_TO_REAL
g_real1
_STRING
STR_TO_REAL_E
g_bool3
EN ENO
_STRING g_real1
is "0" or any value larger than "24"
is converted into float (single precision) data,
s
d
5 Applied Functions
5.1 Type Conversion Functions
s
.
1
2
3
4
5
6
A
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