440
FX
3G
/FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
15 External FX I/O Device – FNC 70 to FNC 79
15.1 FNC 70 – TKY / Ten Key Input
2) Key pressing information [
to
+10]
- For the key pressing information,
to
+9 turn ON or OFF according to the pressed keys.
- For the key sensing output,
+10 turns ON when any key is pressed.
The figure below shows an example of FX
3U
PLC (sink
input).
For wiring details, refer to the following manual.
→
FX
3U
Hardware Edition
2. 32-bit operation (DTKY)
[
+1,
] store a numeric value input from
to
+9 connected to the ten keys. Output
informations for key pressing and key sensing are output to
to
+10.
1) Input numeric value [
]
- When an input value is larger than "99,999,999", it overflows from the most significant digit.
- An input numeric value is stored in the binary format.
2) Key pressing information [
to
+10]
- For the key pressing information,
to
+9 turn ON or OFF according to the pressed keys.
- For the key sensing output,
+10 turns ON when any key is pressed.
For the ten-key connection example and key pressing information, refer to the 16-bit operation (TKY) shown
above.
Cautions
1. When two or more keys are pressed at the same time
In such a case, only the first key pressed is valid.
2. When the command contact turns OFF
Though the contents of
do not change, all of
to
+10 turn OFF.
D
2
D
2
D
2
D
2
D
2
Command
input
FNC 70
TKY
D
1
S
D
2
+1
[1]
[2]
[3]
[4]
[1]
[2]
[3]
[4]
Key sensing output
+2
+3
+9
+1
+2
+3
+9
+10
Input form ten keys
"2130" is stored in .
O
u
tput inform
ati
on for key
pressing inf
o
rm
ation
S
S
S
S
S
D
2
D
2
D
2
D
2
D
2
D
2
D
1
Ten keys
→
PLC
S/S
5
6
7
8
1
2
3
4
0
9
+9
S
0V
24V
+8
S
+7
S
+6
S
+5
S
+4
S
+3
S
+2
S
+1
S
S
D
1
D
1
S
S
D
2
D
2
D
1
D
2
D
2
D
2
D
2
D
2
Command
input
FNC 70
DTKY
D
1
S
D
2
D
1
D
2
D
2
