<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
</head>
<body dir="ltr">
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Hi all,</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
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.</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Has anyone experienced the same problem? What might cause this? Workarounds?<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<b>Example:</b></div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Before power-cycling the TU4-ECT (all slaves have been given alias addresses):</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<div>
<p style="font-weight: normal; color: windowtext; text-align: left" lang="SV-SE">
<span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif; line-height: 18px" lang="SV-SE"><span></span><span>$
</span><span>sudo</span><span> </span><span>ethercat</span><span> </span><span>slaves</span></span><span style="font-size: 11pt; line-height: 18px; font-family: Calibri, Calibri_MSFontService, sans-serif"> </span></p>
</div>
<div>
<p style="font-weight: normal; color: windowtext; text-align: left" lang="SV-SE">
<span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif; line-height: 18px" lang="SV-SE"><span>0 1:0 PREOP + EK1100
</span><span>EtherCAT-Koppler</span><span> (2A E-Bus)</span></span><span style="font-size: 11pt; line-height: 18px; font-family: Calibri, Calibri_MSFontService, sans-serif"> </span></p>
</div>
<div>
<p style="font-weight: normal; color: windowtext; text-align: left" lang="SV-SE">
<span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif; line-height: 18px" lang="SV-SE"><span>1 2:0 PREOP + EL2004 4K. Dig.
</span><span>Ausgang</span><span> 24V, 0.5A</span></span><span style="font-size: 11pt; line-height: 18px; font-family: Calibri, Calibri_MSFontService, sans-serif"> </span></p>
</div>
<div>
<p style="font-weight: normal; color: windowtext; text-align: left" lang="SV-SE">
<span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif; line-height: 18px" lang="SV-SE"><span>2 3:0 PREOP +
</span><span>ifm</span><span> IO-Link Master AL1332</span></span><span style="font-size: 11pt; line-height: 18px; font-family: Calibri, Calibri_MSFontService, sans-serif"> </span></p>
</div>
<div>
<p style="font-weight: normal; color: windowtext; text-align: left" lang="SV-SE">
<b><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif; line-height: 18px" lang="SV-SE"><span>3 4:0 INIT E TU4-ECT</span></span></b><span style="font-size: 11pt; line-height: 18px; font-family: Calibri, Calibri_MSFontService, sans-serif"><b>
</b><br>
</span></p>
<p style="font-weight: normal; color: windowtext; text-align: left" lang="SV-SE">
<span style="font-size: 11pt; line-height: 18px; font-family: Calibri, Calibri_MSFontService, sans-serif"><br>
</span></p>
<p style="font-weight: normal; color: windowtext; text-align: left" lang="SV-SE">
<span style="font-size: 11pt; line-height: 18px; font-family: Calibri, Calibri_MSFontService, sans-serif">After power-cycling the TU4-ECT:</span></p>
<p style="font-weight: normal; color: windowtext; text-align: left" lang="SV-SE">
<span style="font-size: 11pt; line-height: 18px; font-family: Calibri, Calibri_MSFontService, sans-serif"><br>
</span></p>
<p style="font-weight: normal; color: windowtext; text-align: left" lang="SV-SE">
<span style="font-size: 11pt; line-height: 18px; font-family: Calibri, Calibri_MSFontService, sans-serif"></p>
<div>
<p style="font-weight: normal; color: windowtext" lang="SV-SE"><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif" lang="SV-SE"><span></span><span>$
</span><span>sudo</span><span> </span><span>ethercat</span><span> </span><span>slaves</span></span><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif"> </span></p>
</div>
<div>
<p style="font-weight: normal; color: windowtext" lang="SV-SE"><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif" lang="SV-SE"><span>0 1:0 PREOP + EK1100
</span><span>EtherCAT-Koppler</span><span> (2A E-Bus)</span></span><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif"> </span></p>
</div>
<div>
<p style="font-weight: normal; color: windowtext" lang="SV-SE"><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif" lang="SV-SE"><span>1 2:0 PREOP + EL2004 4K. Dig.
</span><span>Ausgang</span><span> 24V, 0.5A</span></span><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif"> </span></p>
</div>
<div>
<p style="font-weight: normal; color: windowtext" lang="SV-SE"><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif" lang="SV-SE"><span>2 3:0 PREOP +
</span><span>ifm</span><span> IO-Link Master AL1332</span></span><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif"> </span></p>
</div>
<div>
<p style="font-weight: normal; color: windowtext" lang="SV-SE"><b><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif" lang="SV-SE"><span>3 8:0 PREOP +
</span><span>ifm</span><span> IO-Link Master AL1332</span></span></b><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif"><b>
</b><br>
</span></p>
<p style="font-weight: normal; color: windowtext" lang="SV-SE"><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif"><br>
</span></p>
<p style="font-weight: normal; color: windowtext" lang="SV-SE"><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif">Lost!!!<br>
</span></p>
<p style="font-weight: normal; color: windowtext" lang="SV-SE"><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif"><br>
</span></p>
<p style="font-weight: normal; color: windowtext" lang="SV-SE"><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif">I'm using Linux kernel 4.13.13-rt5, Ubuntu 18.04 and EtherCAT master 1.5.2.</span></p>
<p style="font-weight: normal; color: windowtext" lang="SV-SE"><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif"><br>
</span></p>
<p style="font-weight: normal; color: windowtext" lang="SV-SE"><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif"><br>
</span></p>
<p style="font-weight: normal; color: windowtext" lang="SV-SE"><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif"><br>
</span></p>
<p style="font-weight: normal; color: windowtext" lang="SV-SE"><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif">Joachim Sällvin<br>
</span></p>
<p style="font-weight: normal; color: windowtext" lang="SV-SE"><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif"><br>
</span></p>
<p style="font-weight: normal; color: windowtext" lang="SV-SE"><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif"><br>
</span></p>
<p style="font-weight: normal; color: windowtext" lang="SV-SE"><span style="font-size: 11pt; font-family: Calibri, Calibri_MSFontService, sans-serif"><br>
</span></p>
</div>
<br>
</span>
<p></p>
<p style="font-weight: normal; color: windowtext; text-align: left" lang="SV-SE">
<span style="font-size: 11pt; line-height: 18px; font-family: Calibri, Calibri_MSFontService, sans-serif"><br>
</span></p>
</div>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
</body>
</html>