Fig. 2 Ek1100 Ethercat Coupler, Standard Ip20 Io Device With Serial/ Batch Number; Fig. 3 Cu2016 Switch With Serial/ Batch Number; Fig. 4 El3202-0020 With Serial/ Batch Number 26131006 And Unique Id-Number 204418 - Beckhoff EL33-00 Series Documentation

Foreword
Fig. 2: EK1100 EtherCAT coupler, standard IP20 IO device with serial/ batch number
Fig. 3: CU2016 switch with serial/ batch number
Fig. 4: EL3202-0020 with serial/ batch number 26131006 and unique ID-number 204418
14 Version: 4.2 EL33xx-00x0