Date and time instructions
283
Part II IEC Instructions
ADD_TOD_TIME
Add TIME to TIME_OF_DAY
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_TOD_TIME (see page 1318)
Data type I/O Function
TIME_OF_DAY 1st input augend
TIME 2nd input addend
TIME_OF_DAY output sum
Description
ADD_TOD_TIME adds a variable of the data type TIME to the time of day. The result is stored in a
variable of the data type TIME_OF_DAY.
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:
TOD_result := ADD_TOD_TIME(TOD_value, TIME_value);