Hi! What is the practical limit of the number of Zigbee network devices for an XBee 3 coordinator, if both encryption and high RAM concentrator are enabled? Let’s consider I have enough routers in the network, I think coordinator still needs to hold the link keys and source routing table, right? Let’s also consider the latest firmware for XB24.
Firmware for the XB24 is the original XBee module which only supports 802.15.4 and Digi Mesh network typologies.
For the Zigbee standards, a Coordinator can support up to 16,556 network addresses assigned out to the Routers and subsequent end devices. I think the true limit is the total bandwidth you require for your application on the total number of nodes you can support. You need to remember that Zigbee is a chatty network where the coordinator and routers need to communicate from time to time to keep the network running. You also need to keep in mind that as you add hops, the bandwidth will decrease.
https://www.digi.com/support/knowledge-base/xbee-zigbee-route-discovery-and-network-address-di
https://www.digi.com/resources/documentation/digidocs/90001539/#containers/cont_zb_networks.htm?TocPath=Zigbee%2520networks%257C_____0
Hi mvut,
I am referring to XBee3 or XBee3 PRO with Zigbee 3.0 network. I assume that for encrypted network and high RAM concentrator we would be limited by the RAM capacity of the coordinator rather than by bandwidth or address space, but I could not find any info on what those constraints might be.
I am not sure that there is any hard numbers for that.
Is there any average practical limit?
In other words, how can I understand if I need to disable high RAM concentrator or split the network?