https://devzone.nordicsemi.com/f/nordic-q-a/68889/question-how-zc-receives-payload-from-zedHello, Nordic developers. The ZED , ZR and ZC connections were identified by the example of Zigbee Light Control example . Based on this example, we are going to develop a ZED bulb because we think we can control it with ZC without ZR . First, theen-USTelligent Community 13Tue, 01 Dec 2020 08:59:46 GMThttps://devzone.nordicsemi.com/thread/282607?ContentTypeID=1Tue, 01 Dec 2020 08:59:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5ff5ef80-9e31-4c53-992b-8f32472a10ddEdvin<p>Hello,</p> <p>1:</p> <p>&nbsp;</p> [quote user=""]This handler tried to send it to <strong>ZC</strong> after processing, but the service was interrupted.[/quote] <p>&nbsp;What do you mean by this? What changes did you do to the sending-function that should trigger a callback? What callback do you expect to see? It is not obvious at least. I have not tested, but did you try to change the&nbsp;ZB_ZCL_DISABLE_DEFAULT_RESPONSE in&nbsp;ZB_ZCL_ON_OFF_SEND_REQ()? You do want some sort of ACK on the Coordinator side, right?</p> <p></p> <p>2:</p> <p>Did you do any changes to the light bulb code? (I have not compared it line by line with the one in the SDK).&nbsp;</p> <p>I&#39;m sorry, I didn&#39;t catch the question in 2. Can you please elaborate?</p> <p></p> <p>3:</p> <p>What did you see?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/282357?ContentTypeID=1Sun, 29 Nov 2020 16:44:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5d961ed8-64b4-43f1-9776-89bd00deadddLeeJooSang[quote userid="93647" url="~/f/nordic-q-a/68889/question-how-zc-receives-payload-from-zed"]&#39;ZB_ZCL_SET_&#39; was identified using &#39;multi-sensor&#39; and &#39;zigbyclip&#39;.ACTURT&#39; was received[/quote] <p>fix -&gt; We used &#39;multi sensor&#39; and &#39;zigbee cli&#39; to make sure that &#39;<strong>ZB_ZCL_SET_ATTRIBUTE</strong>&#39; is received.</p><div style="clear:both;"></div>