IDEC High Performance Series - Manual (Page 175)

WindO/I-NV2 User’s Manual 3-73
5 User Communication
3
Communic
ation
- When the BCC calculation result is 0002h, the converted data will be 3032h.
- When the converted data is 3032h, the data for comparison with the BCC part of the receive data will be
3032h.
- The comparison data is compared with the BCC part of the receive data.
In the following receive data, when the comparison data is the 2-byte 3032h, there is a match since the BCC part
data is 3032h.
When there is no match, the BCC Error (address+0, bit 0) of Status Device changes to 1.
• When data reception is successfully completed, the Completed Device LM203 changes to 1.
• When the value of each bit of address+0 for Status Device LDR250 is 0, transmission is completed without an error.
0002h
Binary (HEX) to ASCII
0
(30h)
Data
2
(32h)
0
(30h)
2
(32h)
Comparison data
0
(30h)
2
(32h)
Bytes: 2
Converted data
(Second byte) (First byte)
Comparison data
Match
Receive data BCC part
3
(33h)
4
(34h)
1
(31h)
STX
(02h)
2
(32h)
A
(41h)
B
(42h)
C
(43h)
D
(44h)
CR
(0Dh)
LF
(0Ah)
0
(30h)
2
(32h)
0
(30h)
2
(32h)