Delta MH300 Series - Page 967

Chapter 16 PLC Function ApplicationsMH300
16-104
API
OR
※
S1
S2
Contact form compare OR*
240–
246
D
bit device
Word device
16-bit command (5 STEP)
OR※
Continuous
execution type
－
－
32-bit command (9 STEP)
DOR※
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 scope 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
. Taking API 240 (OR=) as an
example, when the result of comparison is “equal”, this command activates; when
the result of comparison is “unequal”, this command does not activate.
 The OR* command is a comparison command in parallel with a contact.
API No. 16-bit commands 32-bit commands
Conditions for
activation
Conditions for
inactivation
240
OR＝
D
OR＝
S
1
＝
S
2
S
1
≠
S
2
241
OR＜
DOR＜
S
1
＜
S
2
S
1
≤
S
2
242
OR＞
DOR＞
S
1
＞S
2
S
1
≥ S
2
244
OR＜＞
DOR＜＞
S
1
≠ S
2
S
1
＝S
2
245
OR＝＞
D
OR＝＞
S
1
≤
S
2
S
1
＜
S
2
246
OR＝＜
DOR＝＜
S
1
≥
S
2
S
1
＞
S
2
 When X0=ON and the current value of C10 is also equal to K200, then
Y10=ON.
 When X1=OFF and the content of register D0 is not equal to K-10, then
Y11=ON and remains in that state.
 When X2=ON and the content of the 32-bit register D0 (D11) is less than
678,493, or M3=ON, then M50=ON.
X2
M30
M60
OR>=
K200
C10
X1
Y0
DOR>=
D100
K100000