https://forge.codesys.com/forge/talk/Engineering/thread/687fb46063/2024-06-08T07:35:18.973000ZRecent posts to Official MQTT-Client: MAX_RECEIVE_BUFFER_SIZE_EXCEEDED2024-06-08T07:35:18.973000Z2024-06-08T07:35:18.973000Zculiushttps://forge.codesys.com/u/culius/https://forge.codesys.comead2d137115170e930d9a645e4c38be17d9e4e31

<div class="markdown_content"><p>Thank you very much for your reply. That helped, it is editable if the library is at root level. </p> <p>Unfortunately, I noticed that I am not using the MQTT client SL, but the AzureMQTTClient from the Azure IoT Hub Client SL library. At first glance, there is no parameter to increase the message size. </p> <p>Does anyone know how to increase this in the library or is it simply not possible here?</p></div>

2024-06-07T17:07:25.023000Z2024-06-07T17:07:25.023000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.com22d07f781ed2fd002f9037b7b9513bfff1feca46

<div class="markdown_content"><p>here: (if you use 3.5.20.10)#</p></div>

2024-06-07T13:28:58.683000Z2024-06-07T13:28:58.683000Zculiushttps://forge.codesys.com/u/culius/https://forge.codesys.comf54730f1c2e1fe0c3b589cb5b1031c9571e6f230

<div class="markdown_content"><p>Hey Guys,<br/> could you give a explaination of how to change the <br/> g_udiMaxPacketSize from 6000 to 100000 and<br/> g_udiMaxPayloadSize from 4096 to 80000<br/> ?</p> <p>When I go to the library the parameter is not editable. I would really appreciate it :)</p> <p>Kind Regards</p></div>

2023-09-28T22:40:38.256000Z2023-09-28T22:40:38.256000Zi-campbellhttps://forge.codesys.com/u/i-campbell/https://forge.codesys.comb450e7598d6aa06cb2b2d4b0d18eaa62f13fc9fb

<div class="markdown_content"><p>That's great news! You're welcome.</p></div>

2023-09-28T14:26:01.599000Z2023-09-28T14:26:01.599000ZDerPaulhttps://forge.codesys.com/u/derpaul/https://forge.codesys.com39f028a1df2cd7fe8d3fb30c1245ab4c002a1d82

<div class="markdown_content"><p>I've got it running again!<br/> For testing I've extendet the<br/> g_udiMaxPacketSize from 6000 to 100000 and<br/> g_udiMaxPayloadSize from 4096 to 80000</p> <p>After it does run again!</p> <p>Thank you very much for your help!</p></div>

2023-09-28T14:19:56.547000Z2023-09-28T14:19:56.547000ZDerPaulhttps://forge.codesys.com/u/derpaul/https://forge.codesys.comd5c07b358d155ab3dc1a8dfafd24bae610ba7d0c

<div class="markdown_content"><p>Okay, i've extendet ist from 6000 to 20000, but the error is still present :-(</p></div>

2023-09-28T05:26:14.507000Z2023-09-28T05:26:14.507000ZDerPaulhttps://forge.codesys.com/u/derpaul/https://forge.codesys.come75487595b5ea84958aa7b83dcc3058cf00a653a

<div class="markdown_content"><p>Thank you very much so far - As I finaly decided to make an update on the PFC200 - as I've to get it up and running again. But something failed there and no I'm having an other Problem :-(</p></div>

2023-09-27T22:07:33.040000Z2023-09-27T22:07:33.040000Zi-campbellhttps://forge.codesys.com/u/i-campbell/https://forge.codesys.com33670cacaab09e9baa98347a25ef14090175bfd8

<div class="markdown_content"><p>256MB for the protocol yes, but the default value for this library parameter limits the library to 6kB per task scan.</p></div>

2023-09-27T19:10:21.284000Z2023-09-27T19:10:21.284000ZDerPaulhttps://forge.codesys.com/u/derpaul/https://forge.codesys.comb35a8ba0bdc94a176987a3b42ea6401b9129d19d

<div class="markdown_content"><p>That doesn't help at all:</p> <div class="codehilite"><pre><span></span><code><span class="o">----</span> <span class="n">plcload</span> <span class="n">PLC</span><span class="w"> </span><span class="nb">load</span><span class="w"> </span><span class="n">average</span><span class="p">:</span><span class="w"> </span><span class="mi">20</span><span class="o">%</span> <span class="n">CoreID</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span> <span class="o">---------------------------</span> <span class="n">PLC</span><span class="w"> </span><span class="n">Core</span><span class="w"> </span><span class="nb">load</span><span class="p">:</span><span class="w"> </span><span class="mi">20</span><span class="o">%</span><span class="w"> </span> </code></pre></div> <p>And in taskconfiguration it says that the cycle time is about 5000us with MQTT enabled FBs and about 2800us whitout</p></div>

2023-09-27T17:53:23.998000Z2023-09-27T17:53:23.998000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.com7f806618d443f4d771ebc9ddf230f56928974b51

<div class="markdown_content"><p>check...taskinfo online<br/> check plcshell - plcload</p></div>