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5. Operation Procedure
5.1 Transmission message format
The transmission message is composed by ASCII characters and a specified trailing
code. The default setting of the trailing code is CR (carriage return code = H0D).
Refer to section 5.6 for setting the trailing code other than CR.
The maximum length of a message is 896 bytes. An example of the message is
shown below.
In the above figure, x means an ASCII character. For example, 0 is H30.
When the above message is received or transmitted, the data arrangements in the
T3 registers are as follows.
Register
n
n+1
n+2
n+3
n+4
38
ASCII Interface Module (AS311)
1
2
3
4
0
1
2
A
F
8 7
1
A
7
9
5
6
7
B
7
8
0
0
2
B
8
CR
8
9
CR
9
Transmission message
0
1
2
A
B
7
8
9
CR
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