How do I shorten the discovery time

XBee & XBee Gateway
,
1

Hello,
I am using Xbee Pro 900HP, 1okhz modules.
When I issue a node discovery command (ATND), it takes about 20 seconds to finish the discovery. Are there any way to shorten the time?

My settings are as following:
NO Network Discovery option=2. Bit 1 return Device own DN response first
AP Transparent Mode(0)
TO Transmit Option=40 (Point to Point)
Baud rate = 57600
Flow Control ON
CM Channel Mask FFFFFFFFFFFFF7FFFF (Default)
All other settings are in default settings as well

Thanks,
GerrySC

2

Set the BH and NH to lower values and that is about it.

3

BH and NH are already set to the lowest values. 0 & 1.
I know you said BH and NH is the only variables that will reduce the discovery time, but I tried to change the the Channel Mask CM to FFFFF7C000 so it only is using 25 Channels, to see if that would help. Same thing…
Now I am asking: Can I stop the “discovery search” as soon I discover a module?

Thanks,
GerrySC

4

No but if you use the NI feature, you can do an ND or DN to the NI value and that will complete as soon as the node is found.

5

I am already using the NI command to identify the modules. MODULE-00, MODULE-01,…
I am not sure how to do a ND command to the NI value?
If I send the command “ATND MODULE-03” from Module 00, then I am getting an ERROR

6

Try an ATDNMODULE-03.

7

It works. Module 03 was in sleep mode.
Both “ATND MODULE-03” and “ATNDMODULE-03” works.
I am reading manual 90002173_N.pdf for the 900hp unit, and could not find the instruction or method you suggested to use.

Thank you very much for your help
gerrySC

8

Gerry, Glad that worked for you.