Fnc224~230 - Ld =, >, <, <>, <=, >= / Data Comparison - Mitsubishi FX3U Series Programming Manual

FX /FX Series Programmable Controllers
3U 3UC
Programming Manual - Basic & Applied Instruction Edition
28.1 FNC224~230 – LD =, >, <, <>, <=, >= / Data Comparison
Outline
These instructions compare numeric values, and set a contact to ON when the condition agrees so that an
operation is started.
1. Instruction format
FNC 224
D LD=
FNC 225
D LD>
FNC 226
D
LD<
FNC 228
D LD<>
FNC 229
D LD<=
FNC 230
D
LD>=
2. Set data (common among FNC224 to FNC230)
Operand Type
S
1
S
2
3. Applicable devices (common among FNC224 to FNC230)
Bit Devices
Oper-
and System User
Type
X Y M T C S D .b KnX KnY KnM KnS T C D R U \G
S
1
S
2
Mnemonic
16-bit Instruction
5 steps LD=
Mnemonic
16-bit Instruction
5 steps LD>
Mnemonic
16-bit Instruction
5 steps LD<
Mnemonic
16-bit Instruction
5 steps LD<>
Mnemonic
16-bit Instruction
5 steps LD<=
Mnemonic
16-bit Instruction
5 steps LD>=
Device number storing comparison data
Device number storing comparison data
Digit Specification
28 Data Comparison – FNC220 to FNC249
28.1 FNC224~230 – LD =, >, <, <>, <=, >= / Data Comparison
Operation Condition
32-bit Instruction
Continuous
9 steps LDD=
Operation
Operation Condition
32-bit Instruction
Continuous
9 steps LDD=
Operation
Operation Condition
32-bit Instruction
Continuous
9 steps LDD<
Operation
Operation Condition
32-bit Instruction
Continuous
9 steps LDD<>
Operation
Operation Condition
32-bit Instruction
Continuous
9 steps LDD<=
Operation
Operation Condition
32-bit Instruction
Continuous
9 steps LDD>=
Operation
Description
Word Devices
Special
System User Index
Unit
V Z Modify K H
Mnemonic Operation Condition
Continuous
Operation
Mnemonic Operation Condition
Continuous
Operation
Mnemonic Operation Condition
Continuous
Operation
Mnemonic Operation Condition
Continuous
Operation
Mnemonic Operation Condition
Continuous
Operation
Mnemonic Operation Condition
Continuous
Operation
Data Type
16- or 32-bit binary
16- or 32-bit binary
Others
Con- Real Charac-
Pointer
stant Number ter String
E " " P
645
21
22
23
24
25
26
27
28
29
30