1.5.4
1.5.4
1.5.4
1.5.4 Notice
Notice
Notice
Notice items
items
items
items
�
Confirm the specs and choose the feat module.
�
Do not let the wire and cutting bits falling into the module when operating and layout.
�
Confirm the specs of the module and device, make sure everything is OK.
�
Make sure the connection is steady, if it is loose the data will be incorrect or cause short.
Installation, layout operation should be carried out after cutting down all the power
supply!
2.
2.
2.
2. Communication
Communication
Communication
Communication parameter
parameter
parameter
parameter setting
setting
setting
setting
MA series modules are based on MODBUS protocol, it can realize the communication between
module and related devices via setting the parameters ( including baud rate, data bit, stop bit, check
bit and communication station numbers ).
The baud rate and station numbers of the module can be set via DIP switch.
2.1
2.1
2.1
2.1 Baud
Baud
Baud
Baud rate
rate
rate
rate setting
setting
setting
setting
2.2
2.2
2.2
2.2 Station
Station
Station
Station number
number
number
number setting
setting
setting
setting
DIP switch
1 2
ON
OFF
1 2
OFF
ON
1 2
OFF
ON
1 2
ON
OFF
Baud rate
19200 bps
4800bps
9600bps
57600bps
DIP switch
OFF
ON
2
1
3 4
4
3
1 2
ON
OFF
OFF
ON
2
1
3 4
4
3
1 2
ON
OFF
Station number
No.1
No.2
No.3
No.4
DIP switch
4
3
1 2
ON
OFF
OFF
ON
2
1
3 4
4
3
1 2
ON
OFF
OFF
ON
2
1
3 4
Station number
No.5
No.6
No.7
No.8
DIP switch
OFF
ON
2
1
3 4
4
3
1 2
ON
OFF
OFF
ON
2
1
3 4
4
3
1 2
ON
OFF
Station number
No.9
No.10
No.11
No.12
