horiba U-51, Инструкция по эксплуатации

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3 Basic Operation
76
3.7.2 Commands
Tip
Contact your nearest sales outlet for the details about communication commands.

Instant data requests

Request command format
The two ASCII-code characters created by converting the 8 bits of data created by
successively combining the value of each character from # through @ in an exclusive OR
(XOR) operation with the value of the next character.
Example: #RD@
Example: 35 XOR 82 operation
Note: Set "XX" if you do not want to test for communication frame errors with FCS.

Response format
# RD @ XX [CR] [LF]
1 2 3 4
1 Header 1 character
2 Command 2 characters
3 Delimiter character 1 character
4 Frame check sequence (FCS) 2 characters
(1) 0 XOR 35 (ASCII code of # symbol)
⇒
35
(2) 35 XOR 82 (ASCII code of R)
⇒
113
(3) 113 XOR 68 (ASCII code of D)
⇒
53
(4) 53 XOR 64 (ASCII code of @ symbol)
⇒
117 (decimal)
↓
75 (hex)
↓
Sets "75".
35 in binary
⇒
0 0 1 0 0 0 1 1
82 in binary
⇒
0 1 0 1 0 0 1 0
XOR result 0 1 1 1 0 0 0 1
⇒
113 (decimal)
# RD AAAAAAAAAAAAAAAAAAAA X X XXXX XX X X XXXXX X
1 2 3 4 5 6 7 8 9 10 11
XX X X XXXXX X XX X X XXXXX X XX X X XXXXX X
12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
XX X X XXXXX X XX X X XXXXX X XX X X XXXXX X
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41
XX X X XXXXX X XX X X XXXXX X XX X X XXXXX X
42 43 44 45 46 47 48 49 50 51 52 53 54 55 56