18
VII. Setting of other working parameters
7.1 Parameter setting and protocol of full-function communication port
The 2# communication port is a full-function communication port, and the
communication mode, address and baud rate can be set. It supports top-loose
protocol, standard Modbus RTU protocol, multiple continuous transmission modes,
etc.
The F parameters involved are F06 (communication mode), F07 (communication
address) and F08 (communication baud rate). Please refer to the specific setting
method.
Section 5.5
. Communication mode F06 determines the protocol currently used
by this communication port. See the following table for details.
Protocol
type
Communication
mode F06
Communication data format
remarks
data bit
Check
digit/mode
Stop
bit
Top loose
agreement
0
7-bit
ASC code
1-bit/even
check
1 bit
This protocol is
an instruction
response mode.
When F6 = 3, the
check word (CHK)
is not checked for
correctness or
presence when
receiving data.
See Appendix 1 for
details.
1
7-bit
ASC code
1-bit/odd
check
1 bit
2
8-bit
ASC code
No parity
1 bit
3
7-bit
ASC
cod
e
1-bit/even
check
1 bit
Continuous
transmission
mode
4
7-bit
ASC code
1-bit/even
check
1 bit
Sent every 35mS
See Appendix 2 for
details of the
agreement.
5
7-bit
ASC code
1-bit/odd
check
1 bit
6
8-bit
ASC code
No parity
1 bit
Serial port
printout
8
8-bit
ASC code
No parity
1 bit
The input busy
signal is high
(common)
9
8-bit
ASC code
No parity
1 bit
The input busy
signal is low
Modbus
RTU
10
8 bits
1-bit/even
check
1 bit
See Appendix 3 for
the register
function table.
11
8 bits
1-bit/odd
check
1 bit
12
8 bits
No parity
2 bits
13
8 bits
No parity
1 bit