Mitsubishi Electric MELSEC-Q/L - Page 380

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7 APPLICATION INSTRUCTIONS
7.1 Logical Operation Instructions
Operation error
• There is no operation error in the WXNR(P) or DXNR(P) instruction.
Program example
• The following program performs an exclusive NOR operation on the 16-bit data from X30 to X3F and the data at D99 when
X0 is turned ON, and stores the results to D7.
• The following program performs an exclusive NOR operation on the 32-bit data at D20 and D21 and the data at D10 and
D11 when X10 is turned ON, and stores the result to D40 and D41.
[Ladder Mode] [List Mode]
[Operation]
[Ladder Mode] [List Mode]
[Operation]
Step Instruction Device
11001 00111111100
0 11000110 1 0 1 0 11
0
b15 b8 b0b7
b0b7b15 b8
XNR
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
X30X37X3F X38
D99
D7
X3C
X3B X34X33
X3F to X30
Step Instruction Device
0 11001 0 110 1100
b0b15b31b16
XNR
0 1 0 110 1 0 1 001 0 1
11
00 0000
11
0
11
0
b31b16 b0b15
+ 1
+ 1
+ 1
D21,D20
D11,D10
D41,D40
b0b15b31b16
D
S S
D
SS