Coolmay MX2N Series - 9.3 D8120 Parameter and Function Setting

MX2N series HMI PLC all in one programming manual
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D8126-Respond overtime（1=1ms，Default 5ms）
Note: 1.M8121, M8122, M8123, M8124 are only for internal use. Don’t write to the
MODBUS-RTU master when using it.
2.When D8129 receives the timeout, please set according to the actual setting. When
the setting time is too long, if there is a slave communication failure, the waiting time for
re-communication (namely D8129) will be very long.
9.3 D8120 Parameter and Function setting
D8120 Setting function diagram as below: (D8120 communication parameter selection
register)
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
Bit number
Name
Content
b0
Data
length
0:7 bit
1:8 bit
b2b1
Parity
00:None
01:Odd
11:Even
b3
Stop bit
0:1 bit
1:2 bit
b7b6b5b4
Baud rate
0011:300bps
0100:600bps
0101:1200bps
0110:2400bps
0111:4800bps
1000:9600bps
1001:19200bps
1010:38400bps
1011:57600bps
1100:115200bps
b8
Forbidden
Set 0
b9
Forbidden
Set 0
b12 b11 b10
Protocol
selection
000：Mitsubishi Programming port protocol
001：RS Protocol
010：MODBUS-RTU Slave protocol
011：MODBUS-RTU Master protocol
b13
Forbidden
Set 0
b14
Forbidden
Set 0
b15
Forbidden
Set 0
*1：The start and end characters can be set by user