Mitsubishi Electric MELSEC FX3U Programming Manual page 444

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
3. Timing chart
1) When the ten keys are pressed in the order "[1] → [2] →
[3] → [4]" shown in the figure, "2130" is stored in (D0).
When an input value is larger than "9999", it overflows
from the most significant digit.
(An input numeric value is stored in the binary format in
D0).
2) When X002 is pressed, M12 turns ON and remains ON
until another key is pressed. Other keys work in the
same way.
In this way, M10 to M19 turn ON and OFF according to
the inputs X000 to X011.
3) When pressing a key, the key sensing output M20 is ON
only while it is pressed.
442
15 External FX I/O Device – FNC 70 to FNC 79
15.1 FNC 70 – TKY / Ten Key Input
X000
X001 [2]
X002
[1]
X003
X011
M 10
M 11
M 12
M 13
M 19
M 20 [1] [2]
Key sensing output
[4]
[3]
[4]
[3]