420
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
15 External FX I/O Device – FNC 70 to FNC 79
15.6 FNC 75 – ARWS / Arrow Switch
Program
M8000
T0
D300
T1
D301
T99
D399
Practical
timer circuit
X000
M0
Decrement
X001
M1
Increment
X002
M2
Higher digit
RUN monitor
M3
Lower digit
X004
FNC 66
ALTP
M100
Read/write
M100
Y014
Read indication
M100
Y015
Write indication
Y014 X003
FNC 72
DSW
X010
Y010
Z
K1
Read Set
Digital switch
→
Z
4 digits
×
1 set
Y014
FNC 74
SEGL
T0Z
Y000
K 1
Read
T0Z
→
Seven-segment display unit
4 digits
×
1 set
Negative logic
Y015
FNC 12
MOVP
D300Z
D511
Write
FNC 75
ARWS
M0
D511
Y000
K1
(M 0 to M 3)
→
(D511)
→
(Y000 to Y007)
→
Seven-segment display unit
Y015 X003
Write Set
FNC 12
MOVP
D511
D300Z
4 digits
×
1 set