Fig. 3 Cu2016 Switch With Serial/ Batch Number; Fig. 4 El3202-0020 With Serial/ Batch Number 26131006 And Unique Id-Number 204418; Fig. 5 Ep1258-00001 Ip67 Ethercat Box With Batch Number/ Date Code 22090101 And Unique Se- Rial Number 158102; Fig. 6 Ep1908-0002 Ip67 Ethercat Safety Box With Batch Number/ Date Code 071201Ff And Unique Serial Number 00346070 - Beckhoff EL72 1 Series Documentation