(I)GW11XX Modbus User Manual
3onedata proprietary and confidential 41
Copyright © Shenzhen 3onedata Technology Co., Ltd.
9.3 ASCII Master Mode
Background brief
When the user needs to implement the Modbus ASCII master device to communicate
with the Modbus TCP slave device, use the Modbus gateway device and set the
device's operating mode to ASCII Master.
In ASCII Master Mode, the ASCII master device accesses the TCP slave device
through the gateway.
○
1
ASCII master device sends request to gateway;
○
2
Gateway forwarding request to TCP slave device;
○
3
TCP slave device returns a response;
○
4
The gateway sends back the response.
