Inovance H3U Series - Range Comparison

99
4
4 Instructions 4.3.2 Comparison Output
Example:
ǒDECMP D100 D200 M10Ǔ
X10
S1 S2 D
M10
M11
M12
Floating-point number (D101, D100) > (D201, D200), M10=ON
Floating-point number (D101, D100) < (D201, D200), M12=ON
Floating-point number (D101, D100) = (D201, D200), M11=ON
When X10 = ON, M10, M11, or M12 switches to ON.
The DECP instruction is not executed when X10 switches from ON to
OFF, and M10 to M12 remain in the state prior to X10 = OFF.
Use the RST or ZRST instruction to clear the comparison result of
M10 to M12.
Connect M10 to M12 in serial or parallel mode to acquire the ≥, ≤,
and ≠ results.
If the constant K or H is used as S1 or S2, the value is converted to a oating-point number before the
comparison operation.
ZCP: Range comparison
◆
Overview
When driving conditions are met, the ZCP instruction sets the end-address bit element D (D+1 or D+2) to
ON based on the range of the source address S (S < S1, S1 ≤ S ≤ S2, or S > S2).
ZCP S1 S2 S D
Range
comparison
Applicable model:
H3U
S1
Lower limit for range
comparison
Data, or address of the word element that
stores the data
16-bit instruction
(9 steps)
ZCP: Continuous
execution
ZCPP: Pulse
execution
32-bit instruction
(17 steps)
DZCP: Continuous
execution
DZCPP: Pulse
execution
S2
Upper limit for range
comparison
Data, or address of the word element that
stores the data
S
Comparative variable
Data, or address of the word element that
stores the data
D
Comparison result
Head address of three consecutive
elements that store the comparison result
(ON or OFF)
◆
Operands
Operand
Bit Element Word Element
System·User System·User Bit Designation Indexed Address Constant
Real
Number
S1 X Y M T C S SM D R T C SD KnX KnY KnM KnS KnSM
V,Z
Modication K H E
S2 X Y M T C S SM D R T C SD KnX KnY KnM KnS KnSM
V,Z
Modication K H E
S X Y M T C S SM D R T C SD KnX KnY KnM KnS KnSM
V,Z
Modication K H E
D X Y M T C S SM D R T C SD KnX KnY KnM KnS KnSM
V,Z
Modication K H E
Note: The elements in gray background are supported.
◆
Function
The ZCP instruction requires contact driving and has four operands. When the control ow is active, use
this instruction to algebraically compare operands as signed numbers. The comparison result is indicated
by the position of S within the range dened by S1 and S2 and stored in three consecutive bit variables
from head address D.