https://forge.codesys.com/forge/talk/Runtime/thread/e4252b84e5/2022-05-26T07:42:28.426000ZRecent posts to Raspberry pi EtherCAT - Netwerk adapted could not be opened2022-05-26T07:42:28.426000Z2022-05-26T07:42:28.426000Zbroos72482https://forge.codesys.com/u/broos72482/https://forge.codesys.com9da8619e2bfc931bac6b7f7c5d57e0cf3bddee11

<div class="markdown_content"><p>I found out that when booting from sd-card the usb to ethernet adapter is recognised ok. Only when i boot from usb (using a M.2 Expansion Board voor Argon ONE) different USB to ethernet adapters will not be recognised at boot time.</p></div>

2022-05-26T07:42:23.830000Z2022-05-26T07:42:23.830000Zbroos72482https://forge.codesys.com/u/broos72482/https://forge.codesys.com4f8401d7cc3359648019c70fdc1519f16aea9101

<div class="markdown_content"><p>I found out that when booting from sd-card the usb to ethernet adapter is recognised ok. Only when i boot from usb (using a M.2 Expansion Board voor Argon ONE) different USB to ethernet adapters will not be recognised at boot time.</p></div>

2022-05-04T07:55:04.627000Z2022-05-04T07:55:04.627000Zbroos72482https://forge.codesys.com/u/broos72482/https://forge.codesys.com189fa4d6f8487ee5b6b906b9740a27ea3d12efc0

<div class="markdown_content"><h1 id="thanks-for-your-help-runtime-restart-was-the-solution">Thanks for your help. runtime restart was the solution.</h1> <p>The problem was that the UGREEN USB 3.0 adapter was NOT on the list of hardware for the Raspberry pi. So I bought a USB 2.0 Belkin adapter, which was on the list of compatible hardware (https://elinux.org/RPi_VerifiedPeripherals).<br/> However the're is a problem with both network adapters when booting the Raspberry pi. The are not recognized at boot time. So rebooting was not an option.</p> <p>Using eth0 would probably work. What i tried is using the USB network adapter on eth1 for connection with the soft-plc, ssh, nomachine. But I couldn't get it working.</p> <p>After that I disabled tcp/ip in the dhcpcd.conf file with the options noipv4 and noipv6 after interface eth1. But don't know if thats necessary?</p> <p>But when I put the Belkin adapter in the Raspberry pi after a reboot it is perfectly recognized, I use the dmesg command for that.<br/> Now when i use: <br/> sudo /etc/init.d/codesyscontrol stop<br/> sudo /etc/init.d/codesyscontrol start<br/> It works perfectly.<br/> ===========================<br/> Question:<br/> - I still have to solve the booting problem. Assuming I use eth0 for SSH, codesys: Will a<br/> PiHAT with an extra ethernet port be a possibility ? Will it work better in combination<br/> with the codesys soft PLC ? Can you give me any advise ?<br/> - I think the problem with the booting might be a problem when the system boots the<br/> usb-&gt; ethernet driver is not loaded so the networkadapter might not be recognized.<br/> For a PiHAT may be the modules (ethernet driver) is loaded earlier in the booting process.<br/> If I can solve that problem is there a way to kickstart the EtherCAT bus manually<br/> from a program in the soft-PLC? This would give me the possibility to start the bus without<br/> restarting the soft-PLC ?<br/> Thanks in advance.</p></div>

2022-05-02T08:56:23.201000Z2022-05-02T08:56:23.201000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.com16e23173e925308e8d1ff3dc6cf6230e82fd72a4

<div class="markdown_content"><p>does the same configuration work on eth0?</p></div>

2022-04-30T13:54:37.208000Z2022-04-30T13:54:37.208000Zbroos72482https://forge.codesys.com/u/broos72482/https://forge.codesys.comc6c6098543af4af2faadf61c5dfc6e200e8b5467

<div class="markdown_content"><p><img src="./attachment/attachment.png" width="150%"/></p></div>

2022-04-30T13:43:42.555000Z2022-04-30T13:43:42.555000Zbroos72482https://forge.codesys.com/u/broos72482/https://forge.codesys.comf8d87cb4114512230de89cff9d782cf17210ecfa

<div class="markdown_content"><p>I have a very simple demo application using a:<br/> - Raspberry pi 4b.<br/> - UGreen 10/100/1000 MB USB 3.0 networkadapter.<br/> - Codesys soft-PLC for the raspberry pi (Codesys V3.5 SP17 Patch 2 64-bit).</p> <p>The demo applicatition looks as follows:</p> <p><img src="./attachment/ProgrammLayout.PNG" width="50%"/><br/> What have i done:<br/> - I've downloaded the xml descriptor files.<br/> - Inserted the EtherCAT Master.<br/> - Inserted a buscoupler.<br/> - Inserted a EL1008 DI module.<br/> - Inserted a EL2008 DO module.</p> <p>When start the application i get the following messages from the logging:<br/> <img src="./attachment/Logging.PNG" width="50%"/></p> <p>Scanning doesn't find any devices. When i first connect the application it seems to try to communicatie. I<br/> see the communication leds blinking now and then and after a while it stops.<br/> However for linux the interface seems to be working. ifconfig eth1 shows it transmits packets but doesnt<br/> receive anything. <img src="./attachment/Linux_eth1.PNG" width="50%"/></p> <p>Any help is appreciated.</p></div>