Siemens S7-1200 - Page 248

Basic instructions
7.7 Conversion operations
S7-1200 Programmable controller
248 System Manual, 03/2014, A5E02486680-AG
Table 7- 80 Conversion from a Real number (Real or LReal)
Data type
Instruction
Result
Real
REAL_TO_DWORD, REAL_TO_LREAL
The value is transferred to the target
data type.
REAL_TO_SINT, REAL_TO_USINT, REAL_TO_INT,
REAL_TO_UINT, REAL_TO_DINT, REAL_TO_UDINT,
REAL_TO_STRING
The value is converted.
LReal
LREAL_TO_SINT, LREAL_TO_USINT, LREAL_TO_INT,
LREAL_TO_UINT, LREAL_TO_DINT, LREAL_TO_UDINT,
LREAL_TO_REAL, LREAL_TO_STRING
The value is converted.
Table 7- 81 Conversion from Time, DTL, TOD or Date
Data type
Instruction
Result
Time
TIME_TO_DINT
The value is transferred to the target data type.
DTL
DTL_TO_DATE, DTL_TO_TOD
The value is converted.
TOD
TOD_TO_UDINT
The value is converted.
Date
DATE_TO_UINT
The value is converted.
Table 7- 82 Conversion from a Char or String
Data type
Instruction
Result
Char
CHAR_TO_SINT, CHAR_TO_USINT,
CHAR_TO_INT, CHAR_TO_UINT,
CHAR_TO_DINT, CHAR_TO_UDINT
The value is converted.
CHAR_TO_STRING
The value is transferred to the first character of
the string.
String
STRING_TO_SINT, STRING_TO_USINT,
STRING_TO_INT, STRING_TO_UINT,
STRING_TO_DINT, STRING_TO_UDINT,
STRING_TO_REAL, STRING_TO_LREAL
The value is converted.
STRING_TO_CHAR
The first character of the string is copied to the
Char.