I-7088 and M-7088 User Manual, Rev: A1.2 7MH-026-A12
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3.3.3. Sub-function 05 (0x05) Read communication settings
This sub-function code is used to read the communication protocol
settings of a module.
Request
00
Address
1 Byte
1 to 247
01 Function
code 1
Byte
0x46
02
Sub function code
1 Byte
0x05
03 Reserved
1
Byte
0x00
Response
00
Address
1 Byte
1 to 247
01 Function
code 1
Byte
0x46
02
Sub function code
1 Byte
0x05
03 Reserved
1
Byte
0x00
04
Baud Rate
1 Byte
0x03 ~ 0x0A, Baud Rate
code, see Section 1.10 for
details.
05 Reserved
1
Byte
0x00
06
Parity
1 Byte
0x00: No parity, 1 stop bit
0x01: No parity, 2 stop bits
0x02: Even parity, 1 stop
bit
0x03: Odd parity, 1 stop bit
Reserved for other
modules or firmware
versions and should be
zero
07 Reserved
1
Byte
0x00
08
Mode
1 Byte
0: DCON protocol
1: Modbus RTU protocol
09 ~
10
Reserved
2 Bytes 0x00 0x00