Delta Electronics VFD037CH23A-21 — функции PLC: Сравнение данных и управление устройствами [555/638]

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Chapter 16 PLC Function CH2000 Series
16-102
API
224~
230
D
LD
S1 S2
Load Compare
Bit Devices Word Devices
X Y M K H KnX KnY KnM T C D
S
1
S
2
Operands: : =, >, <, <>,,
Please refer to the specifications of each model for the
range of operands.
16-bit command (5 STEPS)
LD
ZRSTP
32 bits command (9 STEPS)
DLD
Flag signal: none
Explanation
1. S
1
: Data source device 1 S
2
: Data source device 2
2. This instruction compares the content in S
1
and S
2
. Take API224 (LD=) for
example, if the result is “=”, the continuity of the instruction is enabled. If the
result is “”, the continuity of the instruction is disabled.
3. LD ( : =, >, <, <>, , ) instruction is used for direct connection with BUS.
API No.
16 -bit
instruction
32 -bit
instruction
Continuity
condition
No-continuity
condition
224
LD
DLD S
1
S
2
S
1
S
2
225
LD
DLD S
1
S
2
S
1
S
2
226
LD
DLD S
1
S
2
S
1
S
2
228
LD<>
DLD<>
S
1
S
2
S
1
S
2
229
LD<=
DLD<=
S
1
S
2
S
1
S
2
230
LD>=
DLD>=
S
1
S
2
S
1
S
2
Example
1. When the content in C10 = K200, Y10 = On.
2. When the content in D200 > K-30 and X1 = On, Y11= On will be retained.
OR
C0 C10
DOR
D10 D20
&
I
Y0
X2
X1
M30
M60

Содержание

1610

Изучите функции PLC для сравнения данных и управления устройствами. Понимание команд и условий непрерывности поможет в эффективной автоматизации.