FATEK FBs-CB2 - Page 221

Advanced Function Instruction
7-57
FUN 76 D
TKEY
DECIMAL- KEY INPUT
FUN 76 D
TKEY
The following diagram is the input wiring schematic for this example:
01
23456
7
89
C
X0 X1
X2
X3
X4
X5
X6
X7
X8 X9
FB
S-PLC input side
z If the X0~X3 key-in sequence follow the cdefghi sequence in the following diagram. At step c
and
i the X20 is 0, so there was no key generated, only steps defgh are effective. Because the
register can only hold 4 key numbers, Of these 5 steps the first key was kick out. The key strokes 3302 of
the steps efgh are entered in the R0 register.
X20
X0
X1
X2
X3
M0
M1
M2
M3
Y0
R0
0000
0001
0013 1330
3302
3
4
5
6
1
2
4
6
0000
0001
0013 0133 1330
3302
0000
0001
0013 0133 1330
3302
2
5
7
6
43
1
2
3
4
5
6