Lenze PLC Designer PLC Designer (R2-x) Manual de usuario descargar pdf (Pagina 660)

L-force | PLC Designer

PLC Designer Libraries

658 DMS 3.2 EN 02/2011 TD29 

Declaration example:

TOFInst : TOF ;

Example in IL:

CAL TOFInst(IN := VarBOOL1, PT := T#5s)

LD TOFInst.Q

Example in FBD:

Example in ST:

TOFInst(IN := VarBOOL1, PT:= T#5s);

VarBOOL2 :=TOFInst.Q;

Provided by standard.lib.

The function block Runtime Clock returns, starting at a given time, the current date

RTC(EN, PDT, Q, CDT) means:

EN and PDT are input variables type TIME. Q and CDT are output variables type BOOL

respectively DATE_AND_TIME. When EN is FALSE, the output variables Q und CDT are

FALSE respectively DT#1970-01-01-00:00:00.

As soon as EN becomes TRUE, the time of PDT is set, is counted up in seconds and

returned in CDT as long as EN is TRUE (see example in the picture above). As soon as

EN is reset to FALSE, CDT is reset to the initial value DT#1970-01-01-00:00:00. Please

note that the time in PDT is only set by a rising edge.

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Lenze PLC Designer PLC Designer (R2-x) Manual de usuario Pagina 660