Help with API for Dio

XBee & XBee Gateway XBee - DigiMesh
1

I am a beginner to Xbee api. I am trying to set DIO 4 to 5(high)
I have the api mode set to 1

here is the packet I made:
7e 00 11 17 01 00 13 a2 00 40 30 81 c5 ff fe 02 64 34 30 35 80

7e Start Delimiter
00 11 Length
17 Frame Type
01 Frame ID
00 13 a2 00 40 30 81 c5 Address of remote xbee
ff fe Reserved
02 Remote Command Options
64 34 “d4 at command”
30 35 “05 set command d04 to 05 for high”
80 Checksum

This is what is returned
7E 00 33 AB 00 00 33 AB 00 40 30 81 C5 FF FE 64 34 03 64
But I can not make sense of it.

am I doing something wrong? If I am please point me in the right direction. I have read the manual over and over but I am not to sure if I am doing it right.

Thanks for your help.
Dave

2

There seem to be two things wrong here.

The first is in your original packet: you’ve encoded the parameter value as a pair of ASCII digits where it should be a straight byte value. Try this packet instead:
7E 00 10 17 01 00 13 A2 00 40 30 81 C5 FF FE 02 64 34 05 E0

The second thing is that the response packet is garbage (packet type AB doesn’t exist) and that shouldn’t happen. It looks as though the incorrect packet has triggered the firmware to return something it shouldn’t. If you get the first packet right the problem should go away.

The second problem might be a case of not running the latest firmware. What version are you running?

3

Thank you very much, I must have understood the manual wrong. I will try your advice soon. Also both modules are running 804B I think that is the latest?

Thanks again

4

Yes, I think that’s the latest. Looks a bit like a firmware problem, but as long as a correct packet doesn’t trigger it things should be all right.

5

Yes, that new packet worked. Thank you very much.