Connect three or more modules XBEE S2 in Transparent mode

i have one coordinator xbee S2 and i want to use it to communicate with other two modules xbee S2 .

How can i configuration the XCTU Program ?
and how about coding in Arduino?

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/// I connect all of modules xbee with arduino. ///

Please Help

Varawut,

I am not sure which XBee modules you are working with as there are thee different ones for S2. But in general, Set one as the Coordinator (CE 1). The other two routers (Default) will associate to the coordinator.

Most 3rd party Arduino code that you will find have the radios in API Mode. You enable that by setting the ATAP command to 1.

Digi Support