Atop Technology SW550X User manual - Manual (Page 78)

Atop Industrial Wireless Serial Device Server Series
SW550X
User Manual V 1.1
72
4.2.8 UDP Application: Multi-Point Pair Connection
It is also possible to setup pair connection in UDP mode to have more than one Pair
Connection Master or Slave to communicate to each other. For example, it is possible to setup
one Modbus Master and six Modbus Slaves in UDP, Fig. 4. 16. Note again that UDP does not
guarantee data delivery and only data would be transmitted over Ethernet; other serial pings
are not transmited. If RS-232 along with flow control, it is recommended to use Multi-Point Pair
Connection in TCP, see Sec. 4.2.10 .
Note: the destination IP and Port of the Slaves need to be equal to the Master’s IP and Port. Local Listening Port of
the Slaves need to be equal to the Master’s Destination Port, see Table for an example.
Table 4. 1
IP Address Link Mode Local Listening Port Destination IP Destination Port
SW5501 Master COM1 10.0.50.100 UDP 5000 10.0.50.200~10.0.50.203 5000
SW5501 Master COM1 10.0.50.100 UDP 5001 10.0.50.200~10.0.50.201 5001
SW5502 Slave 1 COM1 10.0.50.200 UDP 5000 10.0.50.100 5000
SW5502 Slave 1 COM2 10.0.50.200 UDP 5001 10.0.50.100 5001
SW5502 Slave 2 COM1 10.0.50.201 UDP 5000 10.0.50.100 5000
SW5502 Slave 2 COM2 10.0.50.201 UDP 5001 10.0.50.100 5001
SW5501 Slave 3 COM1 10.0.50.202 UDP 5000 10.0.50.100 5000
SW5501 Slave 4 COM1 10.0.50.203 UDP 5000 10.0.50.100 5000