Delta Electronics Extension Digital I/O Module DOP-EXIO14RAE - Manual (Page 120)

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
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
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