Delta DVP-ES2 User Manual
Page 411
3 . I n s t r u c t i o n S e t
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API Mnemonic
Operands
Function
110
D ECMP
P
Floating point compare
Controllers
ES2/EX2 SS2 SA2
SE
SX2
Bit Devices
Word devices
Program Steps
Type
OP
X Y
M S K H KnX KnY KnM KnS T C D E F
S
1
*
*
*
S
2
*
*
*
D
*
*
*
DECMP, DECMPP: 13
steps
PULSE 16-bit 32-bit
ES2/EX2 SS2
SA2
SE
SX2 ES2/EX2 SS2
SA2
SE
SX2 ES2/EX2 SS2
SA2
SE
SX2
Operands:
S
1
: 1
st
comparison value S
2
: 2
nd
comparison value D: Comparison result, 3 consecutive
devices
Explanations:
1.
The data of S
1
is compared to the data of S
2
and the result (＞, ＝, ＜) is indicated by three bit
devices in D.
2.
If the source operand S
1
or S
2
is specified as constant K or H, the integer value will
automatically be converted to binary floating point for comparison.
Program Example:
1.
If the specified device is M10, M10~M12 will automatically be used.
2.
When X0 = ON, one of M10~M12 will be ON. When X0 = OFF, DECMP is not executed,
M10~M12 will retain their previous state before X0 = OFF.
3.
Connect M10~M12 in series or parallel for achieving the results of ≧, ≦, ≠.
4.
RST or ZRST instruction is required if users need to reset the comparison result.
X0
DECMP
D0
D100
M10
M10
M11
M12
M10 = ON when (D1,D0)>(D101,D100)
M11 = ON when (D1,D0)=(D101,D100)
M12 = ON when (D1,D0)<(D101,D100)