Inovance H3U Series - Page 86

85
4
4 Instructions 4.3.1 Contact Comparison
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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
Note: The elements in gray background are supported.
◆
Function
The following table lists the methods of LD contact comparison.
16-bit
Instruction
FNC NO
32-bit
Instruction
Enabled State
Condition
Disabled State
Condition
LD= 224 LDD= S1 = S2 S1 ≠ S2
LD> 225 LDD> S1 > S2 S1 <= S2
LD< 226 LDD< S1 < S2 S1 >= S2
LD<> 228 LDD<> S1 <> S2 S1 = S2
LD<= 229 LDD<= S1 <= S2 S1 > S2
LD>= 230 LDD>= S1 >= S2 S1 < S2
Example:
[LD= D10 K123]
X0
(M20)
[LD< D10 K5566]
〔SET Y10〕
X1
[LD> D10 K6789]
〔SET Y12〕
[LDD< C235 K999999]
〔OUT Y15〕
当D10 的内容等于K123且X0=On 的时候，M20=On 。
当D10 的内容小于K5566的时候，Y10=On 并保持住。
当D10 的内容大于K6789的时候，Y12=On 并保持住。
当C235 的内容小于K999999，或者X1=On 的时候，Y15=On 。
M20 = ON when X0 = ON and D10 = K123.
Y10 = ON and remains in this state when X1 = ON and D10 < K5566.
Y12 = ON and remains in this state when D0 > K6 and D10 > K6789.
Y15 = ON and remains in this state when X2 = ON and C235 < K999999 or X3 = ON.
Use the 32-bit instruction LDD
☼
to compare 32-bit counters (C200–C255). If a different instruction is used,
an error will occur.