Chapter 8 Communication Function
8-55
(2) SUM 1 , XOR 1 or MUL 1 setting.
a) SUM 1
The last transmitting frame
BCC Type setting
The kinds of
segment input
The value of sum check
ASCII Type
Hex Type
ASCII Input
05 + 31 + 32 +33 +34 +04 = D3
05 31 32 33 34 04 44 33
05 31 32 33 34 04 D3
Hex Input
05 + 12 + 34 +04 = 4F
05 12 34 04 34 46
05 12 34 04 4F
b) XOR 1
The last transmitting frame
BCC Type setting
The kinds of
segment input
The value of sum check
ASCII Type
Hex Type
ASCII Input
05 ^ 31 ^ 32 ^ 33 ^ 34 ^ 04 = 05
05 31 32 33 34 04 30 35
05 31 32 33 34 04 05
Hex Input
05 ^ 12 ^ 34 ^ 04 = 27
05 12 34 04 32 37
05 12 34 04 27
c) MUL 1
The last transmitting frame
BCC Type setting
The kinds of
segment input
The value of sum check
ASCII Type
Hex Type
ASCII Input
05 x 31 x 32 x 33 x 34 x 04 = 60
05 31 32 33 34 04 36 30
05 31 32 33 34 04 60
Hex Input
05 x 12 x 34 x 04 = 20
05 12 34 04 32 30
05 12 34 04 20
d) Complement setting
Complement calculation as below
b
it 7 bit 0
1
1
0
1
0
0
1
1
b
it 7 bit 0
0
0
1
0
1
1
0
0
b
it 7 bit 0
0
0
1
0
1
1
0
1
= h D3(sum check value)
1’ complement = h 2C(the last sum check value)
2’ complement = 1’ comp 1 = h 2D(the last sum check value)
