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<p class="MsoNormal">Have you tried putting it in different positions on the slave network? Perhaps it only vanishes when downstream of a particular slave; then the problem might be with that slave’s configuration.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Etherlab typically assumes that all slaves are configured with DL auto-open mode (so that slaves that are connected or rebooted are automatically brought into the virtual ring network), but it’s possible that one of your upstream slaves
has been configured in the explicit open mode instead.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Joachim Sällvin<br>
<b>Sent:</b> Friday, 14 February 2020 22:34<br>
<b>To:</b> etherlab-users@etherlab.org<br>
<b>Subject:</b> [etherlab-users] Slave lost forever after power cycling<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Hi all,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">I loose contact with my TU4-ECT (freq inverter from Nord Drive) slave after power-cycling it when there are other slaves on the bus. This happens intermittently. Only a EEPROM reset (I use TwinCAT
for this ) can make it accessible again. When it is the only slave on the bus it seems as I can power-cycle and always access again.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Has anyone experienced the same problem? What might cause this? Workarounds?<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">Example:</span></b><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Before power-cycling the TU4-ECT (all slaves have been given alias addresses):<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<div>
<p><span lang="SV">$ sudo ethercat slaves </span><span lang="SV" style="font-size:12.0pt"><o:p></o:p></span></p>
</div>
<div>
<p><span lang="SV">0 1:0 PREOP + EK1100 EtherCAT-Koppler (2A E-Bus) </span><span lang="SV" style="font-size:12.0pt"><o:p></o:p></span></p>
</div>
<div>
<p><span lang="SV">1 2:0 PREOP + EL2004 4K. Dig. Ausgang 24V, 0.5A </span><span lang="SV" style="font-size:12.0pt"><o:p></o:p></span></p>
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<div>
<p><span lang="SV">2 3:0 PREOP + ifm IO-Link Master AL1332 </span><span lang="SV" style="font-size:12.0pt"><o:p></o:p></span></p>
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<div>
<p><b><span lang="SV">3 4:0 INIT E TU4-ECT </span></b><span lang="SV" style="font-size:12.0pt"><o:p></o:p></span></p>
<p><span lang="SV" style="font-size:12.0pt"><o:p> </o:p></span></p>
<p><span lang="SV">After power-cycling the TU4-ECT:</span><span lang="SV" style="font-size:12.0pt"><o:p></o:p></span></p>
<p><span lang="SV" style="font-size:12.0pt"><o:p> </o:p></span></p>
<div>
<p style="line-height:13.5pt"><span lang="SV">$ sudo ethercat slaves <o:p></o:p></span></p>
</div>
<div>
<p style="line-height:13.5pt"><span lang="SV">0 1:0 PREOP + EK1100 EtherCAT-Koppler (2A E-Bus) <o:p></o:p></span></p>
</div>
<div>
<p style="line-height:13.5pt"><span lang="SV">1 2:0 PREOP + EL2004 4K. Dig. Ausgang 24V, 0.5A <o:p></o:p></span></p>
</div>
<div>
<p style="line-height:13.5pt"><span lang="SV">2 3:0 PREOP + ifm IO-Link Master AL1332 <o:p></o:p></span></p>
</div>
<div>
<p style="line-height:13.5pt"><b><span lang="SV">3 8:0 PREOP + ifm IO-Link Master AL1332
</span></b><span lang="SV"><o:p></o:p></span></p>
<p style="line-height:13.5pt"><span lang="SV"><o:p> </o:p></span></p>
<p style="line-height:13.5pt"><span lang="SV">Lost!!!<o:p></o:p></span></p>
<p style="line-height:13.5pt"><span lang="SV"><o:p> </o:p></span></p>
<p style="line-height:13.5pt"><span lang="SV">I'm using Linux kernel 4.13.13-rt5, Ubuntu 18.04 and EtherCAT master 1.5.2.<o:p></o:p></span></p>
<p style="line-height:13.5pt"><span lang="SV"><o:p> </o:p></span></p>
<p style="line-height:13.5pt"><span lang="SV"><o:p> </o:p></span></p>
<p style="line-height:13.5pt"><span lang="SV"><o:p> </o:p></span></p>
<p style="line-height:13.5pt"><span lang="SV">Joachim Sällvin<o:p></o:p></span></p>
<p style="line-height:13.5pt"><span lang="SV"><o:p> </o:p></span></p>
<p style="line-height:13.5pt"><span lang="SV"><o:p> </o:p></span></p>
<p style="line-height:13.5pt"><span lang="SV"><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p><span lang="SV" style="font-size:12.0pt"><o:p> </o:p></span></p>
</div>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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