ZigBee sleep problem

Question

I recently built a XBee network (using Firmware version 9000 of Digimesh 2.4 TH function set of XB24c family). Currently I use the DTR pin to put XBee to sleep, and this configuration works perfectly. But I read that this is not a good solution as the mesh must be made again when a node leaves or joins network.

DigiMesh 2.4 allows an Sleep mode with SM=7 or SM=8 where they sleep synchronously. When updating the firmware with XCTU, it does not show SM 7 and 8 options.

Is there any other thing I should set, or is there something else I am missing?

Answer 1

You say you built a Zigbee network using Digimesh protocol. The thing is that this is an impossibility: Zigbee and Digimesh are competing solutions for mesh network, not something you use together.

See this link: Digimesh manufacturer explains the difference between Zigbee and Digimesh

Digimesh uses Sleep Modes 7 and 8 whereas Zigbee uses 4 and 5. Have you accidentally changed to use Zigbee instead of Digimesh? That would be the reason why you don't see SM 7 and 8 anymore.

Edit:

Looking docs of XB24c they have now also adopted SM numbers 4 and 5.

Look: https://www.digi.com/resources/documentation/digidocs/pdfs/90001506.pdf