Error code: ASCII (20h ~ 7Fh)
Receive/Send buffer size: Receive= 39 bite, Send=44 bite
Monitor register buffer: 8 Word
SUM: to check the communication error
SUM= ASCII-HEX format of lower 8 bit of (Drive No. + CMD + DATA)
Ex) Command Message (Request) for reading one address from address “3000”
Number of
address to read
SUM = „0‟ + „1‟ + ‟R‟ + „3‟ + „0‟ + „0‟ + „0‟ + „1‟
= 30h + 31h + 52h + 33h + 30h + 30h + 30h + 31h
= 1A7h (Control values such as ENQ/ACK/NAK are excluded.)
Detail communication protocol
1) Request for Read: Request for read successive „N‟ numbers of WORD from address “XXXX”
Number of
address to read
Total bite = 12
The quotation marks (“ ”) means character.
1.1) Acknowledge Response:
Total bite = 7 + n * 4 = Max 39
1.2) Negative Acknowledge Response:
Total bite = 9
2) Request for Write:
Number of
address to
read
Total bite = 12 + n * 4 = Max 44
For Service Call 800-848-2504
For Service Call 800-848-2504
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