Lenze PLC Designer PLC Designer (R2-x) - Manual (Page 653)

L-force | PLC Designer
PLC Designer Libraries

DMS 3.2 EN 02/2011 TD29 651
Declaration example:
FTRIGInst : F_TRIG ;
Example in IL:
CAL FTRIGInst(CLK := VarBOOL1)
LD FTRIGInst.Q
ST VarBOOL2
Example in FBD:
Example in ST:
FTRIGInst(CLK:= VarBOOL1);
VarBOOL2 := FTRIGInst.Q;
19.1.4 Counter...
CTU
Provided by standard.lib.
Function block Incrementer:
The input variables CU and RESET as well as the output variable Q are type BOOL, the
input variable PV and the output variable CV are type WORD.
The counter variable CV will be initialized with 0 if RESET is TRUE. If CU has a rising
edge from FALSE to TRUE, CV will be raised by 1.Q will return TRUE when CV is greater
than or equal to the upper limit PV.