3.DATA EXCHANGE WITH CPU
30
F159 and CPU unit exchange data in BCD format.
Example: How to set “7500” to Upper limit
m
10
3
10
2
10
1
10
0
m+1
10
4
m
7
5
0
0
m+1
0
0
0
0
m
10
3
10
2
10
1
10
0
8
4
2
1
8
4
2
1
8
4
2
1
8
4
2
1
m+1
Undefined
Undefined
Undefined
10
4
8
4
2
1
m
0
1
1
1
0
1
0
1
0
0
0
0
0
0
0
0
m+1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
CAUTION
F159 and CPU unit exchange data in BCD format. Violation of this
rule will cause an unexpected operational failure. Data in “undefined”
area is ignored: it is strongly recommended that these areas are filled
up with “0”s.
