Function Block - Generate a pulse at given date and time
DINT Wished year
MONTH : DINT Wished month (1 = January)
DAY : DINT Wished day (1 to 31)
TMOFDAY : TIME Wished time
RST : BOOL Reset command
QAT : BOOL
QPAST : BOOL True if elapsed
Parameters are not updated
constantly. They are taken into account when only:
- the first time the block is called
- when the reset input (RST) is TRUE
In these two situations, the outputs are reset to FALSE.
The first time the block is called with RST=FALSE and the specified date/stamp is passed, the output QPAST is set to TRUE, and the output QAT is set to TRUE for one cycle only (pulse signal).
Highest units are ignored if set to 0. For instance, if arguments are "year=0, month=0, day = 3, tmofday=t#10h" then the block will trigger on the next 3rd day of the month at 10h.
In LD language, the block is activated only if the input rung is TRUE..
(* MyDTAT is a declared instance of DTAT
function block *)
MyDTAT (YEAR, MONTH, DAY, TMOFDAY, RST);
QAT := MyDTAT.QAT;
QPAST := MyDTATA.QPAST;
(* Called only if EN is TRUE *)
(* MyDTAT is a declared
instance of DTAT function block *)
Op1: CAL MyDTAT (YEAR, MONTH, DAY, TMOFDAY, RST)
DTEVERY Real time clock functions