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Date and time instructions
ADD_DT_TIME
ADD_DT_TIME adds the value of a variable of the data type TIME to the date and time stored in
Description
the variable of the data type DATE_AND_TIME. The result is stored in a variable of the data type
DATE_AND_TIME.
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 ADD_DT_TIME (see page 1318)
Data types
Data type
DATE_AND_TIME
TIME
DATE_AND_TIME
In this example the function has been programmed in ladder diagram (LD) and structured text (ST).
Example
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:
DT_result
282
Add TIME to DATE_AND_TIME
I/O
Function
1st input
augend
2nd input
addend
output
sum
:= ADD_DT_TIME(DT_value, TIME_value);
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