maximum payload size supported in api mode for xbee pro s1

XBee & XBee Gateway
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1

Hi,
Am using Xbee pro s1 , digimesh with below details

PRODUCT FAMILY–XBP24-DM

FUNCTION SET–XBEE PRO DIGIMESH 2.4

FIRMWARE VERSION–8073

its documented as maximum payload size it supports is 256 bytes but i see NP parameter as 0x49 ie 73 bytes.Am using API mode and want to send 200 to 240 bytes of data i frame,is it possible

2

The API interface supports one UART data packet as being up to 256 bytes. Over the air, that packet will be broken up into 4 packets and re-assembled on the receiving side.

3

Hi MVUT,

        Thank you for your reply.When i send a packet say upto 120 bytes,i don't receive anything on receiver side nor the transmit status,ack. can you throw some light on this.