Conversion instructions
217
Part II IEC Instructions
DT_TO_STRING
DATE_AND_TIME into STRING
The range for the input date is from DT#2001-01-01-00:00:00 to DT#2099-12-31-23:59:59.
To add an enable input and enable output to the instruction, select [With EN/ENO] from the
"Instructions" pane (LD, FBD or IL editor). To reuse an instruction select "Recently used" from the
context menu or press <Ctrl>+<Shift>+<v> in the programming window.
PLC types Availability of DT_TO_STRING (see page 1319)
All character spaces in the result string will be filled.
Data type I/O Function
DATE_AND_TIME input input data type
STRING output conversion result STRING[19]
Description
DT_TO_STRING converts a value of the data type DATE_AND_TIME into a value of the data type
STRING[19].
Data types
Example
In this example the function has been programmed in ladder diagram (LD) and structured text (ST).
POU header
All input and output variables used for programming this function have been declared in the POU
header.
LD
ST
When programming with structured text, enter the following:
STRING_value := DT_TO_STRING(DT_value);