how to send AT command into API1

Hi there, I’m using a xbee s2c in zigbee, and I would like send AT commands into API1

If you are using API mode, the you can issue local AT commands via the 0x08 API frame.

Example: Query ID parameter:
7E 00 04 08 01 49 44 69

Thank you, I´m working with sleep mode, and I would like to change the sleep time using the AT commands, do you think that it is possible?

Yes, providing you issue the command while the radio is awake.

Thanks for all help.
Do you know wich AT command you use to change the time of cyclic sleep period?

Regards.

That would be the SP or Sleep Period.

ST is Time before sleep.