Lenze PLC Designer PLC Designer (R2-x) - Manual (Page 475)

L-force | PLC Designer
IEC Operators and additional norm extending functions

DMS 3.2 EN 02/2011 TD29 473
Example in ST:
PROGRAM ror_st
VAR
in_byte : BYTE:=16#45;
in_word : WORD:=16#45;
erg_byte : BYTE;
erg_word : WORD;
n: BYTE :=2;
END_VAR
erg_byte:=ROR(in_byte,n); (* Result is 16#51 *)
erg_word:=ROR(in_word,n); (* Result is16#4011 *)
Example in FBD:
Example in IL:
LD 16#45
ROR 2
ST erg_byte