Hi all, 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.
Has anyone experienced the same problem? What might cause this? Workarounds? Example: Before power-cycling the TU4-ECT (all slaves have been given alias addresses): $ sudo ethercat slaves 0 1:0 PREOP + EK1100 EtherCAT-Koppler (2A E-Bus) 1 2:0 PREOP + EL2004 4K. Dig. Ausgang 24V, 0.5A 2 3:0 PREOP + ifm IO-Link Master AL1332 3 4:0 INIT E TU4-ECT After power-cycling the TU4-ECT: $ sudo ethercat slaves 0 1:0 PREOP + EK1100 EtherCAT-Koppler (2A E-Bus) 1 2:0 PREOP + EL2004 4K. Dig. Ausgang 24V, 0.5A 2 3:0 PREOP + ifm IO-Link Master AL1332 3 8:0 PREOP + ifm IO-Link Master AL1332 Lost!!! I'm using Linux kernel 4.13.13-rt5, Ubuntu 18.04 and EtherCAT master 1.5.2. Joachim Sällvin
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