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No.337 想同时发送数据到多台设备。(1:N 通信 UDP broadcast) 11-02-2011
分类 : 如何操作呢?/how to

想同时发送数据到多台设备时,用UDP代替TCP,将通信地址设置为广播(Broadcast)IP地址使用即可。如此构成可代替RS485网络。广播IP地址的各类别及各子网掩码都不相同。



*参考1: UDP 通信模式



下面是利用EZL-200F的构成例。


- 所有ezTCP 有线网络/无线网络产品系列可构成相同配置。



[EZL-200F的设定]



ezTCP Mode UDP(U2S)
Local IP Address 192.168.0.1
Subnet Mask 255.255.255.0
Gateway IP Address 192.168.0.254
Peer IP Address 192.168.0.255 (broadcast IP)
Local Port 1470
Interval(10ms) 0
Block(Byte) 0
Peer Port 1470


[PC #1]


Local IP Address 192.168.0.2
Subnet Mask 255.255.255.0
Gateway IP Address 192.168.0.254
Local Port 1470


[PC #2]


Local IP Address 192.168.0.3
Subnet Mask 255.255.255.0
Gateway IP Address 192.168.0.254
Local Port 1470


[PC #3]


Local IP Address 192.168.0.4
Subnet Mask 255.255.255.0
Gateway IP Address 192.168.0.254
Local Port 1470




See also

FAQ No.335 不改变现有产品可以连接到因特网吗?
FAQ No.339 想了解一下UDP(U2S)接口方式?
FAQ No.338 如何变更通信模式呢?

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