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XBee NWK Frame Field Query

#1

Hi all,

I hope that this is the correct forum to ask this question in. I’m using an XBee S2C as a coordinator in order to communicate with some Zigbee devices (which are not using XBees). I’m managing to communicate with the end nodes one way, but whenever I attempt to transmit data from the coordinator to the end nodes, the end nodes start ‘acting up’. Note that this only happens if the coordinator sends a unicast to an end node; broadcasts from the coordinator do not elicit the same behavior.

Now, I’ve tried to connect the same end nodes to another coordinator which does not use XBee (procured from the same manufacturer who produces the end-nodes themselves). Unicasts from this coordinator do not elicit the same behavior.

I’ve noticed that unicasts sent from the XBee coordinator have the DIEEE and SIEEE bit fields set in the NWK Frame Control field while those sent by the other device do not. Are the DIEEE and SIEEE fields optional in this field?

NWK_Frame_Non_XBee
NWK_Frame_Non_XBee1695×54 8.84 KB
NWK_Frame_XBee
NWK_Frame_XBee1678×56 8.49 KB

#2

Hi @Andrew_Ton,
I reviewed Digi’s S2C Zigbee user manual and did not find any references to the NWK Frame Control field. What setting do you have for “ZS” Zigbee Stack Profile ?
image
Digi has a Knowledge Base article on communicating to non-Digi devices at https://www.digi.com/support/knowledge-base/can-digi-s-xbee-zb-modules-communicate-with-other
Do you know what Zigbee stack is on your non-Digi Zigbee devices? I have not tried using Digi Xbees to communicate to non-Digi Zigbee devices so do not have direct experience.

#3

Hi ScottRaeker,

I’m using the Zigbee 2006 stack. I’ve tried changing the stack profile to the other 2 as well (it was a bit of a shot in the dark, honestly) to no avail. I still get the same problem with the other profiles.

#4

Hi @Andrew_Ton,
Based on the below posts in Digi’s Support forum regarding Zigbee communication between Xbees and non-Digi Zigbee devices you will need to create/write your own application using Digi’s API interface to send appropriate ZDO (Zigbee Device Object) commands to communicate with non-Digi Zigbee devices. Below snippet is from Digi’s XBee/XBee-PRO ZigBee RF Module User Guide.

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image780×112 12.5 KB

Digi Support forum post links

Connecting an XBee to a non XBee device

How to connect XBee Zigbee module to home automation light control remote?