Delta C200 Series User Manual page 328

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API
CMP
10
D
Bit Devices
X Y M
S
1
S
2
＊ ＊
D
Operand
Operand D occupies 3 consecutive devices.
Explanation
Example
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S1 S2 D
P
Word Devices
K H KnX KnY KnM T
＊ ＊ ＊ ＊ ＊
＊ ＊ ＊ ＊ ＊
1. : value comparsion 1, S
S
1
2. The contents in S
1
3. The two comparison values are compared algebraically and the two values
are signed binary values. When b15 = 1 in 16-bit instruction, the comparison
will regard the value as negative binary values.
1. Designate device Y0, and operand D automatically occupies Y0, Y1, and Y2.
2. When X10 = On, CMP instruction will be executed and one of Y0, Y1, and Y2
will be On. When X10 = Off, CMP instruction will not be executed and Y0,
Y1, and Y2 remain their status before X10 = Off.
3. If the user need to obtain a comparison result with ≥ ≤, and ≠, make a series
parallel connection between Y0 ~ Y2.
X10
CMP K10
Y0
If K10>D10, Y0 = On
Y1
If K10=D10, Y1 = On
Y2
If K10<D10, Y2= On
4. To clear the comparison result, use RST or ZRST instruction.
X10
RST
RST
RST
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Chapter 14 PLC Function |C200 Series
Compare
16-bit command ( 7 STEPS)
C D
CMP
＊ ＊ ＊
＊ ＊ ＊
32bits command (13 STEPS)
－
Flag signal: None
: value comparison 2 , D: result comparison
2
and S are compared and result is stored in D.
2
D10 Y0
M0
M1
M2
14-43
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CMPP
－ － －
sales@deltaacdrives.com