Chapter 16 PLC Function Applications│CP2000
16-117
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: ※：=、>、<、<>、≦、≧
Please 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 content of S
1
and S
2
. Taking API 240 (OR=) as an
example, when the result of comparison is equal, this command will be activated;
when the result of comparison is unequal, this command will not be activated.
The OR* command is a compare command in parallel with a contact.
API No. 16-bit commands 32-bit commands
Conditions for
activation
Conditions for
inactivation
240
OR＝ DOR＝
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＜＝ DOR＜＝
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, Y10=On.
When X1=Off and the content of register D0 is not equal to K-10, 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, M50=On.
X2 M30
M60
OR>=
K200
C10
X1
Y0
DOR>=
D100
K100000
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