Delta MH300 Series - Page 962

Chapter 16 PLC Function ApplicationsMH300
16-99
API
LD#
S1
S2
Contact form logical operation LD#
215–
217
D
bit device
Word device
16-bit command (5 STEP)
LD#
Continuous
execution type
－
－
32-bit command (9 STEP)
DLD#
Continuous
execution type
－
－
Flag signal: none
X
Y
M
K
H
KnX
KnY
KnM
T
C
D
S1
＊ ＊ ＊ ＊ ＊ ＊ ＊ ＊
S2
＊ ＊ ＊ ＊ ＊ ＊ ＊ ＊
Notes on operand usage:
＃
,
：
, &, |, ^
Refer to the function specifications table for each device in series
for the range of device usage.

S
1
: data source device 1. S
2
: data source device 2.
 This command compares the contents of S
1
and S
2
. When the result of
comparison is not 0, this command activates; when the result of comparison is
0, this command does not activate.
 You can use the LD# command directly to connect with the busbar.
API No.
16-bit
commands
32-bit
commands
Conditions for
activation
Conditions for
inactivation
215 LD&
D
LD&
S
1
&
S
2
≠
0
S
1
&
S
2
=
0
216 LD| DLD|
S
1
|
S
2
≠
0
S
1
|
S
2
=
0
217 LD^ DLD^
S
1
^
S
2
≠
0
S
1
^
S
2
=
0
&: logical AND operation.
|:
logical OR operation.
^:
logical XOR operation.
 When you compare the contents of C0 and C10 with the logical AND operation,
and the result is not equal to 0, then Y10=ON.
 When you compare the content of D200 and D300 with the logical OR
operation, and the result is not equal to 0, and X1=ON, then Y11=ON and
remains in that state.
LD
C0 C10
LD
D200 D300
SET
X1
&
I
Y11
Y10