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Synchronous baud rate is named RFC2217. USR Similar RFC2217 make adjustments on the basis of
RFC2217 protocol to improve accuracy of transmission.
Protocol length is 8 bytes. And values taken for example is in HEX:
Name
Packet
Header
Baud Rate
Bytes parameter
Parity
Bytes
3
3
1
1
Explanation
reduce
misjudgment
High is in front,
smallest is
600(00 02 58)
data bytes, baud
rate, parity
Remove 4 bits
of header and
ignore the high
bit
(115200,
N,8,1)
55 AA 55
01 C2 00
03
46
(9600,
N,8,1)
55 AA 55
00 25 80
03
28
Serial parameter bit:
Bit #
Explanation
Value
Description
1:0
Data bit selection
00
5 bits
01
6 bits
10
7 bits
11
8bits
2
Stop Bit
00
1 bit
01
2bits
3
Parity Enable
00
Disable Parity
01
Enable Parity
5:4
Parity Type
00
ODD
01
EVEN
10
Mark
11
Clear
8:6
NC
000
0
Using methods:
1. USR-TCP232-M4,E45 Setup software, click “Synchronous baud rate (RFC2217)”.
2. When serial parameter changes is needed, it send RFC 2217 packet. USR-N520 receive the
command from network and revise serial parameter accordingly.
Содержание USR-N520
Страница 1: ...1 69 User Manual File Version V1 0 4 ...
Страница 17: ...17 69 UDP Client Software Configuration UDP Client Testing Screenshot ...
Страница 27: ...27 69 2 Set modbus slave software refer to the following ...
Страница 28: ...28 69 3 Return result for query command is as drawing ...
Страница 33: ...33 69 Drawing 26 Self Defined Heartbeat Function ...
Страница 35: ...35 69 2 Testing result ...
Страница 37: ...37 69 Web to Serial COM Send Receive Data ...
Страница 40: ...40 69 2 Set Printer Driver ...
Страница 59: ...59 69 Software Configuration Full Show ...
Страница 69: ...69 69 ...