Appendix D Use of Application Instructions|DOP-EXIO Series
Revision March, 2008, Doc. Name: 2007PDD23000014 D-39
Mnemonic Operands Function
AND D
S
1
S
2
D
Logical Word AND
Bit Devices Word Devices
X Y M S K H KnX KnY KnM KnS T C D E F
S
1
S
2
D
y Note:
1. If S
1
, S
2
and D are used in device F, only 16-bit instruction is
applicable.
16-bit instruction (7 Steps)
WAND
Continuous
execution
32-bit instruction (13 Steps)
DAND
Continuous
execution
y Flags: None
Operands:
S
1
: Source data device 1
S
2
: Source data device 2
D
: Operation result
Explanations:
1. This instruction conducts logical AND operation of S
1
and S
2
and stores the result in D.
2. Operation rule: The corresponding bit of the operation result in
D will be “0” if any of the bits in S
1
or
S
2
is
“0”.
Program Example 1:
When X0 = On, the 16-bit D0 and D2 will perform WAND, logical AND operation, and the result will be
stored in D4.
WAND
X0
D2
D0 D4
0000111111111111
000 00 000 0 0011 111
000 00 000000 0 0
11 1
WAND
b15
b0
Before
execution
After
execution
D0
D2
D4
Program Example 2:
When X1 = On, the 32-bit (D11, D10) and (D21, D20) will perform DAND, logical AND operation, and
the result will be stored in (D41, D40).
X1
DAND
D10 D20 D40
To Next Page
Loading...
