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FX3S/FX3G/FX3GC/FX3U/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
15 External FX I/O Device – FNC 70 to FNC 79
11
FNC30-FNC39
Rotation and
Shift
12
FNC40-FNC49
Data Operation
13
FNC50-FNC59
High-Speed
Processing
14
FMC60-FNC69
Handy
Instruction
15
FNC70-FNC79
External FX I/O
Device
16
FNC80-FNC89
External FX
Device
17
FNC100-FNC109
Data
Transfer 2
18
FNC110-FNC139
Floating Point
19
FNC140-FNC149
Data
Operation 2
20
FNC150-FNC159
Positioning
Control
15. External FX I/O Device – FNC 70 to FNC 79
FNC 70 to FNC 79 provide instructions to receive data from and send data to external devices mainly using inputs and
outputs in PLC.
Because these instructions easily achieve complicated controls with a minimum required sequence program and
external wiring, they are similar to handy instructions described in the preceding chapter.
FROM and TO instructions, essential for controlling special units and special blocks, are included in this group. (In
FX
3U and FX3UC PLCs, transfer can be also executed using a MOV instruction.)
FNC No. Mnemonic Symbol Function Reference
70 TKY Ten Key Input Section 15.1
71 HKY Hexadecimal Input Section 15.2
72 DSW Digital switch (thumbwheel input) Section 15.3
73 SEGD Seven Segment Decoder Section 15.4
74 SEGL Seven Segment With Latch Section 15.5
75 ARWS Arrow Switch Section 15.6
76 ASC ASCII code data input Section 15.7
77 PR Print (ASCII Code) Section 15.8
78 FROM Read From A Special Function Block Section 15.9
79 TO Write To A Special Function Block
Section
15.10
TKY D1 D2S
D3HKY D2D1S
nDSW D2D1S
DSSEGD
SEGL D nS
n
ARWS
D2D1S
DASC S
DSPR
n
FROM
Dm2m1
nTO Sm2m1