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FX3S/FX3G/FX3GC/FX3U/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
28 Data Comparison – FNC220 to FNC249
28.3 FNC240~246 – OR=, >, <, < >, <=, >= / Data Comparison
28.3 FNC240~246 – OR=, >, <, < >, <=, >= / Data Comparison
Outline
These instructions compare numeric values, and set a contact to ON when the condition agrees.
1. Instruction format
2. Set data (common among FNC240 to FNC246)
3. Applicable devices (common among FNC240 to FNC246)
S1: This function is supported only in FX3G/FX3GC/FX3U/FX3UC PLCs.
S2: This function is supported only in FX
3U/FX3UC PLCs.
Operand Type Description Data Type
Device number storing comparison data 16- or 32-bit binary
Device number storing comparison data 16- or 32-bit binary
Oper-
and
Type
Bit Devices Word Devices Others
System User Digit Specification System User
Special
Unit
Index
Con-
stant
Real
Number
Charac-
ter String
Pointer
XYMTCSD
.b KnX KnY KnM KnS T C D R
U\G
VZModifyKH E "
"P
S1 S2
S
1 S2
FNC 240
OR=
D
Mnemonic Operation Condition
16-bit Instruction
5 steps
OR=
Mnemonic Operation Condition
Continuous
Operation
32-bit Instruction
9 steps
ORD=
Continuous
Operation
FNC 241
OR>
D
Mnemonic Operation Condition
16-bit Instruction
5 steps
OR>
Mnemonic Operation Condition
Continuous
Operation
32-bit Instruction
9 steps
ORD>
Continuous
Operation
FNC 242
OR<
D
Mnemonic Operation Condition
16-bit Instruction
5 steps
OR<
Mnemonic Operation Condition
Continuous
Operation
32-bit Instruction
9 steps
ORD<
Continuous
Operation
FNC 244
OR<>
D
Mnemonic Operation Condition
16-bit Instruction
5 steps
OR<>
Mnemonic Operation Condition
Continuous
Operation
32-bit Instruction
9 steps
ORD<>
Continuous
Operation
FNC 245
OR<=
D
Mnemonic Operation Condition
16-bit Instruction
5 steps
OR<=
Mnemonic Operation Condition
Continuous
Operation
32-bit Instruction
9 steps
ORD<=
Continuous
Operation
FNC 246
OR>=
D
Mnemonic Operation Condition
16-bit Instruction
5 steps
OR>=
Mnemonic Operation Condition
Continuous
Operation
32-bit Instruction
9 steps
ORD>=
Continuous
Operation
S
1
S
2
S
1
S
2