Conversion instructions
237
Part II IEC Instructions
TOD_TO_STRING
TIME_OF_DAY into STRING
TOD_TO_STRING converts a value of the data type TIME_OF_DAY into a value of the data type
STRING[8].
The range for the input time of day is from TOD#00:00:00 to TOD#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 TOD_TO_STRING (see page 1332)
All character spaces in the result string will be filled.
Data type I/O Function
TIME_OF_DAY input input data type
STRING output conversion result
STRING[8]
Description
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 := TOD_TO_STRING(TOD_value);