Delta Electronics AH500, Руководство пользователя

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C h a p t e r 5 A p p l i e d I n s t r u c t i o n s
5 - 4 3
API Instruction code Operand Function
26 D WAND P S
1
, S
2
, D Logical AND operation
Device X Y M S K 16# F KnM KnS D W T C V Z
S
1
         
S
2
         
D
       
Pulse instruction 16-bit instruction (7 steps) 32-bit instruction (9 steps)
  
E xp la nat io n

A logical AND operator takes the binary representations in S
1
and S
2
,
and performs the logical AND operation on each pair of corresponding
bits. The operation result is stored in
D .

S
1
: Source device 1; S
2
: Source device 2; D : Operation result

The result in each position is 1 if the first bit is 1 and the second bit is 1.
Otherwise, the result is 0.
E xamp le 1

When X0.0 is ON, a logical AND operator takes the values in the 16-bit
device D0 and the 16-bit device D2, and performs the logical AND
operation on each pair of corresponding bits, and the operation result is
stored in Y4.
X0.0
WAN D D 0 D 2 D 4
0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1
0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1
0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1
WAND
b15 b0
Before the instruction
is executed
S
1
S
2
D
D 0
D 2
D 4
After the instruction
is executed
E xamp le 2

When X0.1 is ON, a logical AND operator takes the values in the 32-bit
device (D11, D10) and the 32-bit device (D21, D20), and performs the
logical AND operation on each pair of corresponding bits, and the
operation result is stored in (D41, D40).
X0.1
D WA N D D 10 D 20 D 40
Before the instruction
is executed
After the instruction
is executed
DWAND
b15
b0
b31
S
1
S
2
D
D 11 D 10
D 21 D 20
D 41 D 40
1 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1
0 0 0
0 0 0 0 0 0 0 0 0
1 1 1 1 1
1 1 1 0 0
0 0
0 0 0 0 0 0 0 0
1 1 1
1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1
0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0