External Fx I/O Device – Fnc 70 To Fnc 79 - Mitsubishi Electric FX3G SERIES Programming Manual

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
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 PLCs.
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 and FX PLCs, transfer can be also executed using a MOV instruction.)
3U 3UC
FNC No. Mnemonic
70 TKY
71 HKY
72 DSW
73 SEGD
74 SEGL
75 ARWS
76 ASC
77 PR
78 FROM
79 TO
Symbol
Ten Key Input
TKY S D1 D2
Hexadecimal Input
HKY S D1 D2 D3
Digital switch (thumbwheel input)
DSW S D1 D2 n
Seven Segment Decoder
SEGD S D
Seven Segment With Latch
SEGL S D n
Arrow Switch
S D1 D2 n
ARWS
ASCII code data input
ASC S D
Print (ASCII Code)
PR S D
Read From A Special Function Block
FROM m1 m2 D n
Write To A Special Function Block
TO m1 m2 S n
15 External FX I/O Device – FNC 70 to FNC 79
Function
11
12
13
Reference
Section 15.1
Section 15.2
14
Section 15.3
Section 15.4
15
Section 15.5
Section 15.6
16
Section 15.7
Section 15.8
Section 15.9
17
Section
15.10
18
19
20
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