Documentation issue statusVersionComment2.9Update chapter "Technical data"Update structure2.8Update chapter "Technical data"Chapter “Disposal” addedUpdate structure2.7Update chapter "Technical data"Update structure2.6Addenda EL3681-0020 and EL3681-0030Update chapter "Technical data"Update structureUpdate revision status2.5Update chapter "UL notes"Update structure2.4Update chapter "Technical data"Update structureUpdate revision status2.3Update chapter "Sample Program"Update structureUpdate revision status2.2Addenda chapter "Instructions for ESD protection"Addenda chapter "Notices on Analog specification"2.1Update chapter "Notes on the documentation"Correction of Technical dataUpdate chapter "TwinCAT 2.1x" -> "TwinCAT Development Environment" and "TwinCAT Quick Start"Update revision status2.0MigrationUpdate structure1.6Update structureUpdate chapter "Technical data"1.5Update chapter "Basic function principles"1.4Update firmware statusUpdate chapter "Technology"1.3Update firmware statusUpdate application note1.2Update TrueRMS, Crest factor1.1Update LED description1.0First public issue0.2Corrections and addenda0.1Preliminary documentation for EL3681