Mitsubishi Electronics FX3G User Manual
658
FX
3S
/FX
3G
/FX
3GC
/FX
3U
/FX
3UC
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 FX
3G
/FX
3GC
/FX
3U
/FX
3UC
PLCs.
S2: This function is supported only in FX
3U
/FX
3UC
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
stant
Real
Number
Charac-
ter String
Pointer
X Y M T C S D .b KnX KnY KnM KnS T C D
R
U \G
V
Z Modify K H
E
" "
P
S
1
S
2
S
1
S
2
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