Documentation issue statusVersionModifications4.5.1Structural update4.5EK1501-0100 addedUpdate chapter "Overview of EtherCAT Couplers"Update chapter “Technical data”ESI / Hardware status addedStructural update4.4Update chapter "Technical data"Structural update4.3Update chapter "Technical data"Chapter "Note on power supply" addedStructural update4.2Update chapter "Appendix"Structural update4.1Update chapter "Version identification of EtherCAT devices"Update chapter "Overview of EtherCAT Couplers"Update chapter "Technical data"Chapter "cFMus - Special conditions" and "Further documentation on cFMus" addedChapter "Disposal" addedStructural update4.0Update chapter "EtherCAT cabling - hard-wired"Structural update3.9New title pageAddition EK1101-0010Structural update3.8Addition EK1101-0008Update chapter "Version identification of EtherCAT devices"Update chapter "Technical data"Addition chapter "Principles of fiber optic technology"Structural update3.7Structural update Update chapter "Technical data"3.6Structural updateUpdate chapter "Technical data"Update chapter "Firmware Update EL/ES/EM/EPxxxx"3.5Correction of LED descriptionStructural update3.4Update chapter "Mounting and wiring"3.3Update chapter "Technical data"3.2Update chapter "Notes on the documentation"Update chapter "Technical data"Note on ESD protection addedChapter "ATEX – special conditions" replaced by chapter "ATEX – special conditions (extended temperature range)"Chapter "ATEX - documentation“ inserted0.1 – 3.1*archived*