NORD Drivesystems BU0550 - Manual (Page 36)

PLC logic for NORD SK 54xE frequency inverters
36 BU 0550 GB-0813
3.2.4.12 XORN and XORN(
Bit-wise Exclusive OR linking of the AE/accumulator with a negated operand.
Bit-wise Exclusive OR (...) linking of the AE/accumulator and the negated result of the bracket. Up to 6
bracket levels are possible.
The values to be linked must belong to the same type of variable.
BOOL BYTE INT DINT
Possible data types X X X X
Commands Explanation
LD 2#0000_1111
XORN 2#0011_1010 XORN link between 2 constants
Accu = 2#1100_1010
LD 170 Link between a constant and 2 variables.
XORN Var1, Var2 Accu = 170d XORN Var1 XORN Var2
LD Var1
XORN ( Var2 AE/Accu = Var1 XORN ( Var2 OR Var3 )
OR Var3
)
Table 39 XORN and XORN(
AE/Accu Operand Result
0 0 1
0 1 0
1 0 0
1 1 1