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Atop Modbus Gateway
MB5400 Series
User’s Manual V 1.3
27
Fig. 3.12 COM Setting Page
3.7.2 Operation Mode
To setting the
Operation Mode
of your serial device that is connected to your Modbus Gateway
through a COM port, please use the pull-down menu to select one of the following modes under
Modbus Setting
.
RTU Slave:
When a serial device is working as a Modbus slave node, the serial device
will wait, accept request from, and response to its Modbus master node. Data transfer is
done under a RTU format.
RTU Master:
When a serial device is working as a Modbus master node, the serial device
will issue commands to or query Modbus slave nodes. Data transfer is done under a RTU
format.
ASCII Slave:
When a serial device is working as a Modbus slave node, the serial device