Hi , how to enter command mode of Xbee pro s1 to check the energy scanning function?

First make sure that API mode is not enabled. This can be done by checking ‘AP’ parameter in XCTU. It should be of value AP=0x0 [Disabled].

Then move to ‘Terminal’ tab of XCTU or open any other similar tool like PuTTy or HyperTerminal and make active socket connection.

Once you are connected, enter keyword “+++” (without “”) within one second duration. Make sure that there was period of 1 second silence before and after this keyword is entered. Once module enters command mode, it will respond back with “OK”